Santander weather in August
Temperature, sea 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: May – October
What is the weather like in Santander in August?
In August, Santander is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 21.7 °C – refreshing for a swim. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 59 mm in total. All in all, August is a good month for a holiday in Santander.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 77 | 77 | 73 |
| Day | 23° | 24° | 22° |
| Night | 17° | 18° | 16° |
| Sea | 21° | 22° | 21° |
| Sun | 6 h | 6 h | 6 h |
| Rain days | 10 | 11 | 11 |
More details for August
- Daylight
- 14 h 2 min07:19 – 21:21
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 7 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+2Europe/Madrid
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %53 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Santander in August: quick answers
Is Santander hot in August?
Warm rather than hot: in August, daytime highs in Santander average 24 °C and nights cool to about 18 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Santander in August?
Yes. In August the sea averages 21.7 °C – refreshing for a swim.
Does it rain much in Santander in August?
Rain is frequent, with about 11 rainy days and 59 mm in total.
Santander month by month
The whole year in SantanderAll destinations: SpainWhere to go in AugustSea temperature 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