Weatheo

Bilbao Weather by Month

Average temperatures, rainfall and humidity for Bilbao, Spain, month by month, built from OpenWeather’s historical records. Use it to see what a typical Bilbao month looks like before you travel — then check the live Bilbao forecast for the days ahead.

Warmest month

August

27°C average high

Coolest month

January

5°C average low

Wettest month

November

99 mm of rain

Driest month

July

24 mm of rain

Average temperature and rainfall in Bilbao by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January12°C5°C-6°C / 25°C
96 mm
76%13 km/h
February14°C6°C-5°C / 25°C
88 mm
74%14 km/h
March15°C7°C-2°C / 30°C
77 mm
71%14 km/h
April18°C9°C-2°C / 32°C
52 mm
71%13 km/h
May20°C11°C0°C / 36°C
63 mm
74%12 km/h
June24°C15°C6°C / 41°C
53 mm
75%10 km/h
July26°C17°C10°C / 42°C
24 mm
74%10 km/h
August27°C17°C8°C / 43°C
26 mm
74%10 km/h
September25°C14°C7°C / 38°C
43 mm
75%10 km/h
October21°C12°C1°C / 35°C
45 mm
74%10 km/h
November16°C8°C-3°C / 25°C
99 mm
76%13 km/h
December14°C6°C-5°C / 25°C
67 mm
76%12 km/h

Best time to visit Bilbao

The most comfortable time to visit Bilbao is generally June to July and September, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around November, totalling about 732 mm a year.

Travellers who prefer heat should aim for August, when highs average 27°C. November is the month to avoid if rain would spoil your plans — it averages 99 mm, roughly 4× the rainfall of the driest month (July).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Bilbao forecast for what is happening now.

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