Climate averages 1991–2020
Santander weather
in August.
A warm, moderately wet month: the warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Santander: daytime highs average 24.4°C and nights cool to about 17.1°C. By daytime temperature it is the warmest month of the year.
Expect about 60 mm of rain on roughly 10 days, which makes August a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average August day.
The nearest other city in this atlas is Barakaldo (69 km away). In August its highs average 23.4°C, 1.0°C cooler than Santander, with 55 mm of rain.
Among the 93 cities listed in Spain, Santander ranks 83rd of 93 for the warmest August highs and 87th of 93 for the driest August (rainfall, lowest first). The mean August high of those 93 cities is 29.3°C; Santander is 4.9°C cooler than that mean.
From August to September, average highs fall by 1.8°C to 22.6°C, and monthly rainfall rises from 60 mm to 78 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Santander climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.5°C6.1°C | 6.1°C | 115 | 14.7 | 9.49 h |
| February | 13.1°C5.8°C | 5.8°C | 104 | 13.0 | 10.510 h |
| March | 15.3°C7.3°C | 7.3°C | 104 | 12.9 | 11.912 h |
| April | 16.6°C8.8°C | 8.8°C | 103 | 14.8 | 13.413 h |
| May | 19.3°C11.6°C | 11.6°C | 86 | 14.1 | 14.715 h |
| June | 21.8°C14.4°C | 14.4°C | 68 | 10.9 | 15.415 h |
| July | 23.7°C16.5°C | 16.5°C | 54 | 10.3 | 15.115 h |
| August, selected | 24.4°C17.1°C | 17.1°C | 60 | 10.3 | 14.014 h |
| September | 22.6°C15.3°C | 15.3°C | 78 | 11.3 | 12.613 h |
| October | 19.9°C12.9°C | 12.9°C | 109 | 13.3 | 11.111 h |
| November | 15.4°C9.4°C | 9.4°C | 150 | 15.8 | 9.710 h |
| December | 13.3°C7.1°C | 7.1°C | 114 | 13.9 | 9.09 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Barakaldo in AugustSpain · 69 kmHigh 23.4°C · Low 17.5°C · 55 mm rain
- Bilbao in AugustSpain · 75 kmHigh 23.2°C · Low 17.6°C · 55 mm rain
- Gasteiz / Vitoria in AugustSpain · 115 kmHigh 25.1°C · Low 14.5°C · 32 mm rain
- Burgos in AugustSpain · 125 kmHigh 26.2°C · Low 13.7°C · 20 mm rain
- Donostia / San Sebastián in AugustSpain · 149 kmHigh 23.3°C · Low 17.4°C · 89 mm rain
- Gijón in AugustSpain · 150 kmHigh 22.6°C · Low 16.6°C · 72 mm rain
- Logroño in AugustSpain · 156 kmHigh 26.9°C · Low 15.4°C · 26 mm rain
- Oviedo in AugustSpain · 165 kmHigh 22.3°C · Low 14.3°C · 90 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Santander) is explained once on the Santander year overview and on the Sources, method and limits page.