Switzerland · Regional climate

Basel-Stadtwhen to go

Regional slice of Switzerland with its own temperature profile. Best months here: Jul · Aug · Sep.

Range: 5–26 °C
Compare: +4.5°C vs. Switzerland mean
Country: Switzerland
TZ: Europe/Zurich

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12-month climate · Basel-Stadt

How the year moves in Basel-Stadt

Ten years of ERA5, aggregated over Basel-Stadt itself rather than over Switzerland as a whole — the same series the month-by-month scores below are built from.

Temperature°C

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Month	Average daytime high (°C)
January	4.7
February	8.0
March	11.3
April	15.0
May	18.5
June	24.1
July	25.5
August	25.4
September	21.0
October	15.6
November	8.5
December	5.3

Rainfallmm

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Month	Rainfall (mm)
January	112
February	74
March	79
April	91
May	132
June	133
July	114
August	113
September	90
October	91
November	100
December	99

Sunshinehr / day

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Month	Sunshine hours (hr / day)
January	3.0
February	4.4
March	5.9
April	7.0
May	6.3
June	7.1
July	7.3
August	6.9
September	5.8
October	4.4
November	3.2
December	2.6

Month by month · Basel-Stadt

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Safety · 6 governments

What the governments say about Switzerland

Combined advisory · most-cautious-wins

Exercise normal precautions

Highest level across 6 governments · Advisory last changed 2026-10-18

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