Bilbao weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: June – October
What is the weather like in Bilbao in August?
In August, Bilbao is warm: daytime highs average 22 °C, and nights cool down to about 18 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 55 mm in total. All in all, August is a good month for a holiday in Bilbao.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 76 | 74 | 70 |
| Day | 21° | 22° | 21° |
| Night | 18° | 18° | 17° |
| Sun | 6 h | 6 h | 5 h |
| Rain days | 10 | 11 | 12 |
More details for August
- Daylight
- 14 h 1 min07:16 – 21:17
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 7 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Madrid
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %43 %
- Few rainy daysweight 30 %50 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Bilbao in August: quick answers
Is Bilbao hot in August?
Warm rather than hot: in August, daytime highs in Bilbao average 22 °C and nights cool to about 18 °C.
Does it rain much in Bilbao in August?
Rain is frequent, with about 11 rainy days and 55 mm in total.
Bilbao month by month
The whole year in BilbaoAll destinations: SpainWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences