Weather by months in Bilbao
January
February
March
April
May
June
July
August
September
October
November
December
23ºC
Avg. daily temperature
26ºC
High
12ºC
Low
70 mm
Total precipitation
70%
Avg. humidity
5m/s
Avg. wind
12 
Sunny days
8 
Cloudy days
10 
Rainy days
Air temperature
September
The temperature is between 12 and 19 degrees Celsius.
Low12º19ºHigh
1.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
4.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
7.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
10.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
13.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
16.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
18.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
20.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
22.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
24.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
26.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
28.9In Bilbao, September sees a maximum daytime temperature of about 26ºC and a minimum nighttime temperature of 12ºC. The average daily high is approximately 23ºC, with an average nightly low of 15ºC. This month is ideal for outdoor walking tours of the city, discovering hidden gems in the Old Town, or enjoying the local cuisine in outdoor dining settings.





