Basel, Switzerland
Weather by months in Basel
January
February
March
April
May
June
July
August
September
October
November
December
22ºC
Avg. daily temperature
28ºC
High
5ºC
Low
70 mm
Total precipitation
70%
Avg. humidity
4m/s
Avg. wind
12 
Sunny days
8 
Cloudy days
6 
Rainy days
Air temperature
September
The temperature is between 9 and 20 degrees Celsius.
Low9º20ºHigh
1.9The temperature is between 10 and 21 degrees Celsius.
Low10º21ºHigh
4.9The temperature is between 11 and 22 degrees Celsius.
Low11º22ºHigh
7.9The temperature is between 10 and 21 degrees Celsius.
Low10º21ºHigh
10.9The temperature is between 9 and 20 degrees Celsius.
Low9º20ºHigh
13.9The temperature is between 10 and 21 degrees Celsius.
Low10º21ºHigh
16.9The temperature is between 11 and 22 degrees Celsius.
Low11º22ºHigh
18.9The temperature is between 10 and 21 degrees Celsius.
Low10º21ºHigh
20.9The temperature is between 9 and 20 degrees Celsius.
Low9º20ºHigh
22.9The temperature is between 10 and 21 degrees Celsius.
Low10º21ºHigh
24.9The temperature is between 11 and 22 degrees Celsius.
Low11º22ºHigh
26.9The temperature is between 10 and 21 degrees Celsius.
Low10º21ºHigh
28.9In Basel, September has a maximum daytime temperature of around 28ºC and a minimum nighttime temperature of 5ºC. The average daily high is about 22ºC, while the average nightly low hovers around 11ºC. As the weather cools slightly, it’s a wonderful time for vineyard tours in nearby regions or visiting the stunning Fondation Beyeler.
