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Santander climate by month
What the weather is like
Santander has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 24° and nights 17°. January is the coolest month, with highs of 13° and lows of 7°. The difference between the warmest and the coolest month is about 10°.
About 1,477 mm of precipitation falls in an average year. January is the wettest month (154 mm, 17 wet days) and July the driest (64 mm, 8 wet days). Cloud cover ranges from 33% in August to 46% in December.
The sea reaches about 22° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Madrid, the capital, Santander is 9.1° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 24° · August
- Coldest nights
- 7° · February
- Wettest month
- January
- Driest month
- July
- Clearest skies
- August · 33% cloud
- Warmest sea
- 22° · August
- Longest day
- 15 h 24 min
- Shortest day
- 8 h 59 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 13° | 14° | 15° | 17° | 19° | 21° | 23° | 24° | 23° | 20° | 16° | 14° |
| Average low | 7° | 7° | 8° | 9° | 12° | 15° | 17° | 17° | 15° | 13° | 10° | 8° |
| Precipitation | 154 mm | 126 mm | 125 mm | 134 mm | 99 mm | 71 mm | 64 mm | 84 mm | 101 mm | 150 mm | 203 mm | 166 mm |
| Wet days (≥1 mm) | 16.9 | 13.9 | 13.9 | 13.5 | 11.7 | 9.5 | 8.3 | 8.3 | 8.6 | 13.2 | 16.2 | 14.4 |
| Cloud cover | 45% | 42% | 42% | 42% | 40% | 37% | 35% | 33% | 34% | 40% | 44% | 46% |
| Sea temperature | 13° | 13° | 13° | 13° | 15° | 18° | 20° | 22° | 20° | 18° | 16° | 14° |
| Daylight | 9h 18 | 10h 31 | 11h 53 | 13h 24 | 14h 41 | 15h 24 | 15h 07 | 14h 00 | 12h 33 | 11h 05 | 9h 43 | 8h 59 |
| Month score | 37 | 39 | 48 | 55 | 68 | 75 | 78 | 79 | 78 | 65 | 52 | 41 |