Weather in San Sebastian in April 2025
Average weather
Average temperature in San Sebastian in April
Going from a maximum of +77°F during the day to a minimum of +34°F during the night, the temperature in April averages around +61°F.
The average maximum temperature goes up 38% by the end of the month, compared with the beginning of the month, from +46°F to +63°F.
Is San Sebastian warm or cold in April?
San Sebastian is typically mild in April.
Maximum temperatures go up compared to the previous month from +59°F to +61°F. The minimum temperature also goes up from +46°F to +50°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how April is compared to other months in San Sebastian:
Climate in San Sebastian in April
| March | April | May | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +59°F | +61°F | +66°F | ||||
| Min. temperature | ||||||
| +23°F | +34°F | +39°F | ||||
| Max. temperature | ||||||
| +82°F | +88°F | +97°F | ||||
| Rainfall | ||||||
| 129 mm | 140 mm | 129 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 73% | 75% | 77% | ||||
| Air pressure | ||||||
| 1017 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 6 | 5 | 5 | ||||
| Cloudy days | ||||||
| 14 | 12 | 14 | ||||
| Rainy days | ||||||
| 11 | 13 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
April weather is still as ok as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +59°F to +61°F during the day. Prepare for more rain. Average rainfall goes from 129 mm to 140 mm. Humidity rises from 73% to 75%. The average wind speed doesn’t change much during April, staying around 2 m/s. The days becoming less sunny, going from 6 sunny days in March to 5 in April.
May brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Sebastian is gradually decreasing during April, going from 4 m/s to 1 m/s over the course of the month.
Rain
How was the weather last April in San Sebastian?
Climate Change Over the Years
The climate in San Sebastian in April has not changed that much over the last 43 years.
The average temperature was the lowest in 1986 (+55°F) and the highest in 2011 (+70°F). The driest year was 1982 with only 20 mm of rainfall, and the wettest year was 2020 with 373 mm.
FAQ
Is April a good time to visit San Sebastian?
Can you sunbathe in San Sebastian in April?
Is San Sebastian rainy in April?
Is it sunny in San Sebastian in April?
Other cities in Spain
Monthly weather in San Sebastian
Source of the data
For this page, we’ve looked at the typical weather in San Sebastian, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.