Weather in September 2025

Bilbao weather in September 2025

The temperatures in Bilbao in September are comfortable with low of 16°C and and high up to 23°C.

You can expect about 3 to 8 days of rain in Bilbao during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Bilbao in September 2025.

If you’re planning to visit Bilbao in the near future, we highly recommend that you review the 14 day weather forecast for Bilbao before you arrive.

Temperatures
Temperatures
23° / 16°
Rainy Days
Rainy Days
3
Snowy Days
Snowy Days
0
Dry Days
Dry Days
27
Rainfall
Rainfall
70
mm
10.6
Sun Hours
10.6
Hrs

Bilbao annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 12° / 6° 9 21 1 174 mm
Bad
February 12° / 6° 8 19 1 160 mm
Bad
March 14° / 7° 7 24 0 109 mm
Ok
April 16° / 9° 7 23 0 103 mm
Ok
May 18° / 11° 7 24 0 97 mm
Ok
June 21° / 13° 6 24 0 112 mm
Good
July 23° / 16° 4 27 0 70 mm
Perfect
August 24° / 17° 4 27 0 65 mm
Perfect
September 23° / 16° 3 27 0 70 mm
Perfect
October 20° / 13° 5 26 0 95 mm
Good
November 15° / 10° 9 21 0 189 mm
Ok
December 13° / 8° 8 23 0 136 mm
Bad
Temperatures in Bilbao in September
Rain in Bilbao in September

Recommended Hotels in Bilbao

We know that finding the ideal hotel in Bilbao can be a hard task...

That’s why we run our special tools and found the best hotels in Bilbao. Click on hotel for more details.

Weather in Bilbao in September - FAQ

What is the average temperature in Bilbao in September?
The average temperature in Bilbao in September is 16/23° C.
What is the chance of rain in Bilbao in September?
On average, there are 3 rainy days in Bilbao during September.
Weather wise, is September a good time to visit Bilbao?
The weather in Bilbao in September is perfect.
Can it snow in Bilbao in September?
On average, there are 0 snowy days in Bilbao in September.
More about the weather in Bilbao