Bilbao in september: average Weather, Temperature and Climate
Weather in Bilbao in september 2025
The weather in Bilbao in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 6
Weather at 6am
63°F
Clear/Sunny
42% of time
24%
19%
11%
Weather at 12pm
74°F
Clear/Sunny
52% of time
22%
20%
4%
Weather at 6pm
68°F
Clear/Sunny
47% of time
23%
15%
10%
Weather at 3am
63°F
42%
22%
20%
13%
Evolution of daily average temperature and precipitation in Bilbao in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Bilbao in september.
The climate of Bilbao in september is good
The climate in september in Bilbao is relatively dry (with 2.8in of precipitation over 5 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 2.6in of rainfall over 4 days.
The climate good in this location this month. The thermometer averaged maximum of 76°F. On average, the recorded minimum temperature is 63°F. Thus, the mean temperature average on this month of september in Bilbao is 68°F. Note that seasonal normals in contrast with those observed in Bilbao in the month of september with a maximum record of 97°F in 2021 and a minimum record of 52°F in 2010.
On average, in Bilbao, the days of september last 12:31. Sunrise is at 06:51 and sets at 19:22.
With good weather conditions, the month of september is recommended to go there.
Seasonal average climate and temperature of Bilbao in september
Check below seasonal norms These statistics are set from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 68°F | ||||
| Highest temperature | 76°F | ||||
| Lowest temperature | 63°F | ||||
| Highest record temperature | 97°F (2021) | ||||
| Lowest record temperature | 52°F (2010) | ||||
| Number of days at +86°F | 1 day(s) (3%) | ||||
| Number of days at +65°F | 29 day(s) (97%) | ||||
| Sea temperature | |||||
| Average sea temperature | 70°F | ||||
| Lowest sea temperature | 67°F | ||||
| Highest sea temperature | 73°F | ||||
| Wind | |||||
| Wind speed | 16km/h | ||||
| Wind temperature | 63°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.8in | ||||
| Number of days with rainfall | 5 day(s) (15%) | ||||
| Record daily rainfall | 1.6in (2016) | ||||
| Other climate data | |||||
| Humidity | 82% | ||||
| Visibility | 9.56km | ||||
| Cloud cover | 34% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:51 | ||||
| Time of sunset | 19:22 | ||||
| Length of day | 12:31 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Bilbao in september 2024:
61°F to 76°F
61°F to 74°F
58°F to 61°F
58°F to 61°F
54°F to 63°F
54°F to 65°F
52°F to 72°F
56°F to 72°F
52°F to 70°F
56°F to 72°F
49°F to 72°F
56°F to 63°F
50°F to 61°F
43°F to 67°F
47°F to 72°F
47°F to 70°F
54°F to 67°F
50°F to 74°F
58°F to 72°F
59°F to 61°F
59°F to 67°F
56°F to 67°F
52°F to 67°F
52°F to 67°F
59°F to 74°F
65°F to 70°F
56°F to 61°F
49°F to 61°F
47°F to 70°F
54°F to 74°F
Map: other cities in Spain in september
Cities near Bilbao:
| Getaria in september | good weather |
| Zarautz in september | good weather |
| Santander in september | perfect weather |
| San Sebastian in september | good weather |
| Torrelavega in september | perfect weather |
| Logroño in september | good weather |
| Pamplona in september | good weather |
| Burgos in september | good weather |
| Colombres in september | perfect weather |
| Llanes in september | perfect weather |
| Bardenas Reales in september | good weather |
| Soria in september | good weather |
Click over cities on the map for information about the weather in september.
Bilbao
perfect weather
good
tolerable
bad
very bad
Weather data for Bilbao in september:
Weather data for Bilbao for september are derived from an average of the weather forecast since 2009 in Bilbao. There is a margin of error and these forecasts are to be considered as general information only. The weather in Bilbao can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Bilbao.