Climate averages 1991–2020
Donostia / San Sebastián weather
in April.
A mild, wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Donostia / San Sebastián: daytime highs average 15.1°C and nights cool to about 9.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 127 mm of rain on roughly 16 days, which makes April a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 23 min on an average April day.
The nearest other city in this atlas is Pamplona (61 km away). In April its highs average 14.9°C, about as warm as Donostia / San Sebastián, with 80 mm of rain.
Among the 93 cities listed in Spain, Donostia / San Sebastián ranks joint 85th of 93 for the warmest April highs and 91st of 93 for the driest April (rainfall, lowest first). The mean April high of those 93 cities is 18.3°C; Donostia / San Sebastián is 3.2°C cooler than that mean.
From April to May, average highs rise by 2.9°C to 18.0°C, and monthly rainfall falls from 127 mm to 117 mm.
The annual picture
April 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
Donostia / San Sebastián climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.2°C6.5°C | 6.5°C | 135 | 15.4 | 9.49 h |
| February | 11.6°C6.3°C | 6.3°C | 123 | 14.1 | 10.510 h |
| March | 13.7°C7.8°C | 7.8°C | 114 | 13.9 | 11.912 h |
| April, selected | 15.1°C9.2°C | 9.2°C | 127 | 16.1 | 13.413 h |
| May | 18.0°C12.0°C | 12.0°C | 117 | 15.4 | 14.715 h |
| June | 20.6°C14.7°C | 14.7°C | 93 | 12.7 | 15.315 h |
| July | 22.4°C16.7°C | 16.7°C | 82 | 12.6 | 15.115 h |
| August | 23.3°C17.4°C | 17.4°C | 89 | 12.9 | 14.014 h |
| September | 21.4°C15.6°C | 15.6°C | 96 | 12.9 | 12.513 h |
| October | 18.8°C13.3°C | 13.3°C | 128 | 14.3 | 11.111 h |
| November | 14.2°C9.6°C | 9.6°C | 170 | 15.7 | 9.810 h |
| December | 11.9°C7.5°C | 7.5°C | 138 | 15.1 | 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
April in nearby cities
- Pamplona in AprilSpain · 61 kmHigh 14.9°C · Low 5.8°C · 80 mm rain
- Gasteiz / Vitoria in AprilSpain · 77 kmHigh 14.5°C · Low 5.2°C · 80 mm rain
- Bilbao in AprilSpain · 77 kmHigh 15.1°C · Low 9.5°C · 97 mm rain
- Barakaldo in AprilSpain · 82 kmHigh 15.3°C · Low 9.3°C · 97 mm rain
- Logroño in AprilSpain · 102 kmHigh 15.7°C · Low 6.0°C · 63 mm rain
- Pau in AprilFrance · 131 kmHigh 15.4°C · Low 6.1°C · 145 mm rain
- Santander in AprilSpain · 149 kmHigh 16.6°C · Low 8.8°C · 103 mm rain
- Burgos in AprilSpain · 177 kmHigh 13.7°C · Low 4.0°C · 66 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 Donostia / San Sebastián) is explained once on the Donostia / San Sebastián year overview and on the Sources, method and limits page.