Is Bilbao hot in September?
Days are typically warm at 24.5°C, while nights average 13.9°C.
Spain · 1991–2020 normal
Bilbao in
September.
Typical September weather in Bilbao: 24.5°C by day, 13.9°C at night, 81 mm of rain over 9.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high24.5°C
Typical low13.9°C
Rain81 mm
Wet days9.6
In the year-round weather comparison, September scores 84 out of 100 (June leads the year at 88). Daylight is calculated as 12 h 27 from latitude 43.26°. Open-water sea temperature is 20.4°C (20 km from the place centre).
September at a glance
What is Bilbao like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 81 mm across about 10 wet days.
How much daylight is there?
There are about 12 h 27 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 3 of 12 in our weather comparison; June ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 3128026
- NOAA station
- SPE00120611 · BILBAO AEROPUERTO
- Station distance
- 4.2 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Bilbao is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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