Vol. 04 / 2026The RankingUpdated May 2026
№ 00 , The Ranking

Cities for mild summersthe 25 coolest summers worth living in · 2026

We scored 5,000 cities on the number that matters when the rest of the world swelters: the daytime high of the warmest month, weighted toward a comfort band rather than raw cold. These are the 25 that keep summer mild without tipping into a real winter, from the 70F September of San Francisco to the cool 65F July of Anchorage.

San Francisco · a 70F September is as hot as the summer gets
№ 01 , The Top Three

The coolest summers.

Three marine and highland climates that hold a spring feel through the heat of the year.

№ 01 , the winner

San Francisco

9.3

United States

№ 02

Wellington

9.1

New Zealand

№ 03

Quito

9.0

Ecuador

San Francisco takes the top spot with a warmest month daytime high of 70F, reached in September rather than the foggy heart of summer. The cold California Current and the marine layer that pours through the Golden Gate hold the city near 65F for much of July and August while inland California bakes past 100F, the climate quirk Mark Twain is wrongly credited with naming. The result is the most reliable mild summer of any major city in the Americas, with no real heat and no frost. The cost is the trade, among the highest in the United States with a central one bedroom near 2,900 dollars, but for the heat averse remote worker the climate is the draw. For new arrivals, SafetyWing covers the first months of health cover, and Wise moves money at the mid market rate. See the San Francisco profile and the remote work ranking.

Wellington ranks second with a warmest month high of 68F in February, the mildest summer of any capital in the southern hemisphere. New Zealand sits in the path of the cool Southern Ocean winds, and the compact harbor capital never builds the heat of Auckland to its north. Summer days run breezy and bright in the high 60s, the ocean stays cool, and the famous Wellington wind keeps the air moving even on the warmest afternoons. The trade is that same wind and a fair amount of rain, but for warmth without heat the city is hard to beat. It pairs a mild climate with a high quality of life, which is why it also lands on the quality of life ranking. See the Wellington profile for the cost and visa detail.

Quito completes the top three with a daytime high that holds near 70F every month of the year, the textbook eternal spring. Sitting at 9,350 feet on the equator, the Ecuadorian capital trades season for altitude: there is no summer and no winter, only a wet season and a dry one, and the temperature barely moves from January to December. Days run mild and bright, nights cool toward 50F, and the equatorial sun is strong enough to demand a hat year round. The cost is among the lowest on this list, with a central one bedroom near 450 dollars, and the altitude is the one adjustment new arrivals must make. Quito is the math for the value seeker who wants a permanent mild spring. The cheapest cities ranking places it high.

Beneath the top three, the same physics keeps repeating. A mild summer is almost always the product of one of three forces: a cold ocean current on a western coast, as in San Francisco and Vancouver; a southern hemisphere island position open to the cool Southern Ocean, as in Wellington and Hobart; or high altitude near the equator, where elevation cancels the tropical sun, as in Quito and Bogota. A reader who understands which of the three a city relies on can predict its summer without reading the chart.

The trade is consistent too. The marine cities pay in cloud and wind, the southern islands pay in distance, and the highland cities pay in cold nights and the adjustment to altitude. There is no mild summer without a cost somewhere, which is why the methodology scores toward a comfort band rather than chasing the single coolest reading. A city that is merely cold, like Reykjavik, scores below a city that is genuinely mild, even though its summer thermometer reads lower.

The places just behind the leaders show how narrow the mild summer club really is. Vancouver at 8.8 is the warmest of the reliably mild cities, a 72F August that almost never tips into real heat, framed by mountains and the cold Pacific. Bogota at 8.7 is the second highland entry, holding a 67F day every month of the year at 8,600 feet, cooler than Quito and just as steady. Below them the scores ease into the maritime and Nordic cities whose summers are mild chiefly because their whole year is cool, a different proposition from the eternal spring of the equatorial highlands, and one a reader should weigh against the winter that comes with it.

№ 02 , The Index

The full ranked table.

All 25 cities, scored on the warmest month. Green marks a score of 8.0 and above, amber 6.0 to 7.9. Every city links to its profile.

Below the top three, the ranking runs through the marine coasts of the North Atlantic and the Pacific Northwest, the temperate cities of the southern hemisphere, and the high altitude capitals of the Andes and East Africa, where elevation cancels the tropical heat. The table scores each city on the daytime high of its warmest month, so a northern July is measured against a southern February and an equatorial year round figure on equal terms. Every city links to its full profile, where the 12 month chart and the cost lines live in detail.

The pattern is clear once the table is read top to bottom. The mildest summers cluster where cold ocean currents meet the land, on the western coasts of continents and the southern islands, or where altitude does the work the latitude cannot. Vancouver and Edinburgh hold the marine north, Bogota joins Quito as a highland entry, and the Nordic capitals appear because their brief summer tops out in the low 70s. The methodology rewards the comfort band, so the very coldest entries like Reykjavik score lower than their raw temperature suggests.

Read by region, the table sorts into three families. The marine north supplies the largest group, from Edinburgh and Dublin through the Nordic capitals and the German and Dutch ports, all of them cities whose brief summer tops out in the low 70s and whose real penalty is the long, grey winter on the other side of the year. The southern hemisphere supplies the temperate islands of New Zealand and Tasmania. The third family is the high altitude equatorial set, where Quito and Bogota hold a permanent spring that no northern city can match for consistency.

The scores fall off slowly rather than sharply, because most of these cities cluster within a few degrees of one another at the warmest point of the year. The separation comes from the secondary inputs the method layers in: how cool the nights run, how much the warmest month varies from year to year, and whether the mild summer is paid for by a brutal winter or merely a wet one. Copenhagen and Auckland sit close on the raw figure but separate on the harshness of their off season.

For the reader chasing a mild summer specifically to escape heat, the marine west coast cities are the safest bet, since their cool is reliable rather than seasonal: San Francisco will not surprise you with a 95F week the way an inland city can. For the reader who wants mild year round rather than mild in summer only, the highland tropics win, and the best weather ranking blends both readings into a single score.

The absences are instructive. Cities famous for pleasant weather but warm summers, Lisbon, Barcelona, Melbourne, do not appear, because their warmest month climbs into the 80s even though their reputation is mild. The list is strict about its single question: not how pleasant the climate is overall, which the best weather ranking measures, but how cool the hottest month stays. A reader looking for warmth in winter and coolness in summer at once is looking for a maritime temperate climate, and only a handful of cities on earth deliver both.

№CityCountryScoreWarmest month highThe verdict
1San FranciscoUnited States9.370F SeptemberThe marine layer holds the city near 65F through summer while inland California bakes. No heat, no frost.
2WellingtonNew Zealand9.168F FebruaryThe mildest southern capital, breezy and bright in the high 60s, never building the heat of the north.
3QuitoEcuador9.070F year roundEternal spring at 9,350 feet on the equator, where the temperature barely moves all year.
4VancouverCanada8.872F AugustPacific air keeps the warmest month in the low 70s, framed by mountains and ocean.
5BogotaColombia8.767F year roundAndean altitude holds the Colombian capital in a cool, even spring every month of the year.
6ChristchurchNew Zealand8.572F FebruaryThe South Island plains run a dry, mild summer in the low 70s with cool nights off the alps.
7HobartAustralia8.472F FebruaryTasmania's capital is the coolest summer in Australia, mild and clear off the Southern Ocean.
8EdinburghUnited Kingdom8.366F AugustThe Scottish capital tops out in the mid 60s, a cool, bright marine summer with long daylight.
9DublinIreland8.267F JulyThe Irish summer holds in the high 60s, soft and changeable, with the sea moderating every extreme.
10CopenhagenDenmark8.171F JulyA short Baltic summer peaks near 71F, bright and long, before the cool returns in September.
11AucklandNew Zealand8.074F FebruaryThe northern New Zealand summer reaches the mid 70s, warm but never harsh, tempered by two harbors.
12AmsterdamNetherlands7.971F AugustThe Dutch summer tops out near 71F, mild and breezy, with the odd warm spell the only exception.
13BergenNorway7.864F JulyThe Norwegian coast runs a cool, wet summer in the mid 60s, the price of fjord scenery.
14StockholmSweden7.772F JulyThe Swedish summer is brief and bright, peaking near 72F across the archipelago before the long dark.
15OsloNorway7.672F JulyThe Norwegian capital warms to the low 70s in July, with cool evenings and forest on every side.
16HelsinkiFinland7.572F JulyThe Finnish summer is short and mild in the low 70s, the reward for a long and serious winter.
17HamburgGermany7.472F JulyThe northern German port runs a cool, wet summer near 72F, milder than the continental south.
18BrusselsBelgium7.372F JulyThe Belgian summer holds in the low 70s, grey as often as bright, with the sea an hour away.
19LondonUnited Kingdom7.273F JulyThe English capital tops out near 73F in a mild, changeable summer, with rare heat spikes the exception.
20ReykjavikIceland7.157F JulyThe coolest summer on the list at 57F, mild only by the standard of the far north, never warm.
21CuscoPeru7.068F year roundThe Andean city holds near 68F by day all year, with cold high altitude nights the trade.
22HalifaxCanada6.974F JulyThe Atlantic Canadian summer reaches the mid 70s, cooled and fogged by the cold Labrador current.
23Quebec CityCanada6.777F JulyThe brief Quebec summer warms to the high 70s, a sharp contrast to the long, hard winter.
24SeattleUnited States6.576F AugustThe Pacific Northwest summer is dry and pleasant in the mid 70s, the reward for the grey wet winter.
25AnchorageUnited States6.365F JulyAlaska's largest city peaks at a cool 65F in July, mild summer bracketed by a serious northern winter.

It helps to read the table in tiers. The top tier, San Francisco through Bogota, are the cities where summer simply never arrives as heat, scoring inside the comfort band with no real seasonal swing. The middle tier, Christchurch through Amsterdam, run mild summers but pay for them with either a cooler edge or a wetter sky. The lower tier, from Bergen down to Anchorage, are mild in summer but bracketed by serious winters, so the cool July is only half the story.

The list answers a narrow question, the temperature of the warmest month, and a reader should layer the rest of life on top of it before moving. A mild summer in Anchorage comes attached to a subarctic winter; a mild summer in Quito comes attached to high altitude and a developing world cost base that is a feature for some and a barrier for others. The relocation score tool grades any of these against your current city on the full index, not just the climate.

The ranking is most useful for the heat averse remote worker, the retiree fleeing summer extremes, and anyone whose health or work suffers above 80F. It is least useful for the sun seeker, who is better served by the sunniest cities ranking, and for the reader who wants warm winters rather than cool summers, who should read the cities for mild winters ranking instead. The two lists rarely overlap: a city with a mild summer usually has a cool winter, and the cities that manage both are the rare maritime temperate exceptions.

A word on what is missing. The hot Mediterranean cities that readers love, Barcelona, Lisbon, Madrid, do not appear, because their summers climb past the 82F ceiling even though their winters are mild. They belong on the warm winter and best weather lists rather than here. The genuinely tropical cities are absent for the opposite reason: they have no mild season at all, only a hot one and a hotter one.

Finally, the figures are climate normals, not a forecast. A warming climate is nudging the warmest month upward in many of these cities, and the marine advantage that protects the west coast entries is the most durable of the three mechanisms. The numbers refresh each year against the latest normals, and the next cut ships in August 2026. Treat the rank as a guide to the typical summer and the profile behind each city as the detailed evidence.

The cost spread across this list is wider than on almost any other ranking in the atlas, which is worth flagging before a reader falls for a climate. San Francisco and Vancouver are among the most expensive cities in North America, while Quito, Bogota, and Cusco sit among the cheapest places in the atlas to live well. The mild summer is free; the city attached to it is not. The cheapest cities ranking is the natural cross reference for the reader who wants the climate without the coastal North American price.

Health is the quiet reason this list matters more than it looks. Extreme summer heat is a measurable risk for the elderly, for people with cardiovascular or respiratory conditions, and for anyone whose work or sleep degrades above 80F, and a mild summer city removes that risk at the source rather than managing it with air conditioning. For the retiree in particular, the overlap between this list and the cities for retirees ranking is no accident, and a cool summer often matters more to long term comfort than a warm winter does.

One practical use of this list is to pair it with its opposite. A reader who hates summer heat but also dreads winter cold is searching for a narrow band of maritime temperate cities, and the overlap between this ranking and the mild winters list is the shortest path to finding them. San Francisco, the New Zealand cities, and the highland tropics are the names that appear on both, because their oceans or their altitude flatten the whole year rather than just one season. That double mild climate is rare, and it is the closest thing to a perfect year round temperature that geography allows.

The atlas maintains this ranking alongside fifty other category lists and the full set of 5,000 city profiles, all drawn from the same climate normals and the same scoring scale. A city that scores 8.5 for its mild summer here carries that reading into the best weather ranking and onto its own profile, so a reader can move between the lists without relearning the numbers. The climate axis is one input of seventeen in the full index, and the climate match tool is the fastest way to turn a personal temperature preference into a citywide shortlist.

№ 03 , Honorable Mentions

Five that nearly made it.

Cities 26 to 30, mild by day but held off the table by a warm month or a cold night.

Kunming

7.4

China's spring city holds near 75F most of the year at altitude, just edged out on summer rain.

Kunming profile

Addis Ababa

7.2

The Ethiopian highland capital runs near 70F by day all year, kept off the table by the long wet season.

Addis Ababa profile

Nairobi

6.8

Kenya's highland capital holds a mild 77F in its warm months, cooler than its equatorial latitude suggests.

Nairobi profile

La Paz

6.6

The Bolivian capital sits so high that its warmest month barely reaches 63F, mild by day but cold at night.

La Paz profile

Montevideo

6.4

The Uruguayan summer warms to the low 80s on the River Plate, just past the mild band the method rewards.

Montevideo profile
№ 04 , How We Scored

The method, in full.

Transparent, repeatable, and the same across all 5,000 cities in the atlas.

The everycity mild summer score runs on a 10 point scale built on the daytime high of the warmest calendar month. Rather than simply rewarding the coldest cities, the method scores toward a comfort band: a warmest month near 68F to 74F earns the top marks, while cities that run too cold to enjoy a summer at all, or too hot to count as mild, are scored down. We pull the climate normals from national meteorological offices and the World Meteorological Organization, then normalize against the global range.

A city scores 8.0 or above only if its warmest month sits comfortably inside the mild band with low heat stress; that runs green in the table. A score between 6.0 and 7.9 marks a summer that is mild but either a touch too cool, like Reykjavik at 57F, or warming toward the upper edge, like Seattle at 76F; those run amber. We did not include any city whose warmest month average high climbs past 82F, which is why the warm summers of Madrid, Rome, and Lisbon do not appear, mild as their winters are.

The southern hemisphere cities are scored on their February figures and the equatorial highland cities on their year round average, since neither has a northern style July peak. This is why Wellington, Quito, Bogota, Christchurch, and Hobart appear so high: their warmest month, whenever it falls, stays mild by global standards. Altitude does for the tropical cities what latitude does for the northern ones, holding the heat off the equator.

The numbers refresh each year against the latest climate normals, with the next cut shipping in August 2026. The climate match tool finds the cities closest to your own threshold for warmth, the best month to visit tool reads the calendar for any city, and the relocation score tool grades a target against your current city on the full index. For the opposite season, the cities for mild winters ranking runs the same method on the coldest month, and the best weather ranking blends both.

The comfort band is the heart of the method and the reason this list does not simply rank the coldest cities first. We score the warmest month high against an ideal window in the high 60s to low 70s Fahrenheit, the range most readers describe as a perfect summer day, and we penalize departures in both directions. A city that tops out at 57F, like Reykjavik, loses points for being too cold to enjoy, just as a city at 84F loses points for being too hot to count as mild. The aim is to find pleasant summers, not merely cool ones.

The secondary inputs break the ties. We weight the diurnal range, since a city whose nights stay comfortable scores above one whose mild days collapse into cold nights, and we weight the year to year variance, rewarding the cities whose summer is reliably mild over those that average mild but spike. We pull the climate normals from national meteorological offices and the World Meteorological Organization, the same sources behind the mild winters ranking, so the two lists are directly comparable.

The method has limits. Climate normals describe the typical year, not the one you happen to move in, and a single hot summer can break the pattern anywhere. Urban heat islands also push the real feel above the official station reading in the densest cities, so a leafy district will run cooler than the number suggests and a concrete one warmer. Reader corrections feed the next cut, and the best month to visit tool lets you test any city against your own threshold before committing.

The color bands follow the atlas standard: a mild summer score of 8.0 and above prints green, 6.0 to 7.9 prints amber, and anything below 6.0 prints red, which on this list means a summer either too cold to enjoy or warm enough to fall outside the mild band entirely. The scale is the same one used for the cost, safety, and winter scores on every city profile, so a reader learns it once and reads it everywhere across the 5,000 cities in the atlas.

A closing note on honesty. A climate normal is an average, and the summer you actually get may run warmer or cooler than the table promises in any given year. The value of the ranking is the long run pattern it captures, the cities whose geography keeps the heat off year after year, and that pattern is far more reliable than any single season. Read the rank as the typical case, check the profile for the detail, and let the climate match tool settle the rest against your own tolerance for heat.

The atlas, every quarter.

One email when the cost, safety, and climate numbers refresh. No tourism boards, no paid placement, 5,000 cities scored the same way.

Sources, May 2026. Numbeo cost of living index May 2026 · Mercer Quality of Living and Cost of Living Surveys 2026 · OECD Better Life and Income Distribution data 2025 · World Bank Open Data 2025 · EIU Global Liveability Index 2024 · Speedtest Global Index April 2026 · national meteorological offices and the World Meteorological Organization for climate normals · Glassdoor and Levels.fyi for salary medians. Last updated May 24, 2026.