Climate averages 1991–2020
Santander weather
in May.
A mild, moderately wet month: the 6th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Santander: daytime highs average 19.3°C and nights cool to about 11.6°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 86 mm of rain on roughly 14 days, which makes May a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 40 min on an average May day.
The nearest other city in this atlas is Barakaldo (69 km away). In May its highs average 18.0°C, 1.3°C cooler than Santander, with 84 mm of rain.
Among the 93 cities listed in Spain, Santander ranks 79th of 93 for the warmest May highs and 85th of 93 for the driest May (rainfall, lowest first). The mean May high of those 93 cities is 21.8°C; Santander is 2.5°C cooler than that mean.
From May to June, average highs rise by 2.5°C to 21.8°C, and monthly rainfall falls from 86 mm to 68 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Barakaldo in MaySpain · 69 kmHigh 18.0°C · Low 12.0°C · 84 mm rain
- Bilbao in MaySpain · 75 kmHigh 17.8°C · Low 12.1°C · 84 mm rain
- Gasteiz / Vitoria in MaySpain · 115 kmHigh 18.0°C · Low 8.5°C · 71 mm rain
- Burgos in MaySpain · 125 kmHigh 17.5°C · Low 7.3°C · 64 mm rain
- Donostia / San Sebastián in MaySpain · 149 kmHigh 18.0°C · Low 12.0°C · 117 mm rain
- Gijón in MaySpain · 150 kmHigh 17.5°C · Low 11.0°C · 109 mm rain
- Logroño in MaySpain · 156 kmHigh 19.4°C · Low 9.3°C · 59 mm rain
- Oviedo in MaySpain · 165 kmHigh 17.4°C · Low 8.8°C · 124 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.