Weather in Bilbao in September 2024
Average weather
Average temperature in Bilbao in September
Going from a maximum of +99°F during the day to a minimum of +50°F during the night, the temperature in September averages around +77°F.
The average maximum temperature goes down 37% by the end of the month, compared with the beginning of the month, from +82°F to +64°F.
Is Bilbao warm or cold in September?
Bilbao is typically mild in September.
Maximum temperatures go down compared to the previous month from +73°F to +72°F. The minimum temperature also goes down from +64°F to +61°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
September is one of the warmest months in Bilbao, here is the comparison with other months:
Climate in Bilbao in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +73°F | +72°F | +68°F | ||||
| Min. temperature | ||||||
| +52°F | +48°F | +37°F | ||||
| Max. temperature | ||||||
| +104°F | +102°F | +90°F | ||||
| Rainfall | ||||||
| 57 mm | 69 mm | 92 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 2 m/s | ||||
| Humidity | ||||||
| 75% | 75% | 73% | ||||
| Air pressure | ||||||
| 1017 HPa | 1016 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 6 | 7 | 7 | ||||
| Cloudy days | ||||||
| 19 | 16 | 15 | ||||
| Rainy days | ||||||
| 6 | 7 | 9 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as good as in August. It’s getting colder in September. From +73°F in the day, the average maximum temperature lowers to +72°F. Prepare for more rain. Average rainfall goes from 57 mm to 69 mm. Humidity levels don’t change as the month goes on, averaging around 75%. The average wind speed doesn’t change much during September, staying around 1 m/s. The good news is there are likely to be more sunny days in September, from 6 to 7.
October brings much the same weather, it remains good.
Wind
The average wind speed is 5 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Bilbao is gradually increasing during September, going from 7 m/s to 10 m/s over the course of the month.
Rain
How was the weather last September in Bilbao?
Climate Change Over the Years
The climate in Bilbao in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1994 (+72°F) and the highest in 2016 (+92°F). The driest year was 1985 with only 5 mm of rainfall, and the wettest year was 2021 with 171 mm.
FAQ
Is September a good time to visit Bilbao?
Can you sunbathe in Bilbao in September?
Is Bilbao rainy in September?
Is it sunny in Bilbao in September?
Other cities in Spain
Monthly weather in Bilbao
Source of the data
For this page, we’ve looked at the typical weather in Bilbao, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.