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Capital city, Switzerland

Bern weather by month and the best time to visit

Updated October 2026Sources
May–SepBest time to visit

When to go to Bern

Jun–Aug for swimming in the Aare and outdoor markets; Dec has Christmas markets. Winters are cold and can be foggy; July–Aug heat can reach 30°C+.

Bern weather by month

Average daily high, rainfall and conditions.

PleasantHotRainyCool or coldBest months
-5°0°5°10°15°20°25°JFMAMJJASOND
Average highAverage lowRainfall

Monthly averages

MonthHighLowRainHumidityConditions
January4°C39°F-3°C27°F77 mm85%Cold
February5°C41°F-3°C27°F62 mm83%Cold
March10°C49°F1°C33°F80 mm81%Cold
April14°C58°F5°C40°F83 mm78%Cool
May18°C65°F9°C48°F130 mm79%Pleasant
June22°C72°F13°C56°F117 mm77%Pleasant
July24°C75°F15°C59°F121 mm75%Pleasant
August24°C75°F14°C58°F126 mm75%Pleasant
September20°C67°F10°C50°F83 mm79%Pleasant
October15°C60°F6°C44°F94 mm81%Cool
November9°C48°F2°C35°F82 mm85%Cold
December4°C40°F-2°C29°F87 mm84%Cold

Best months across Switzerland

PlaceBest monthsWarmest month
ZurichMay–SepJul (24°C)
GenevaMay–SepJul (27°C)
LucerneMay–SepJul (24°C)
InterlakenJun–SepJul (25°C)
ZermattJan–Mar, Jul–SepJul (19°C)
BernMay–SepJul (24°C)
BaselMay–SepJul (25°C)
LausanneMay–SepJul (26°C)
LuganoApr–Jun, Sep–OctJul (28°C)
GrindelwaldJan–Feb, Jun–SepJul (22°C)
St. MoritzJan–Mar, Jul–SepJul (18°C)
MontreuxMay–Jun, Sep–OctJul (26°C)

Quick answers

What is the best month to visit Bern?

May–Sep. Jun–Aug for swimming in the Aare and outdoor markets; Dec has Christmas markets. Winters are cold and can be foggy; July–Aug heat can reach 30°C+.

When is the rainy season in Bern?

Rain peaks in May with about 130 mm. No month averages 150 mm or more.

What is the hottest month in Bern?

July, with average highs of 24°C (75°F).

How cold does Bern get?

The coolest nights are in January, averaging -3°C (27°F).

More about Bern

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Sources

Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 1.3°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.