Weather in San Sebastian in April

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temperature
Temp

19° C

average

rain
Rain

4 mm

per month

sun
Sun

66 %

chance

humidity
Humidity

66 %

average

Average daily temperatures

It’s pretty mild at this time of year, but it’s a good idea to bring along a jumper or light jacket for the evenings. The average daily maximum is 22 C and the average daily minimum is 15 C.

Sunshine and rainfall

There is a 66% chance of a perfect sunny day and a 34% chance of seeing some clouds, with on average 4mm of rainfall this month.

Best time to be on the beach

It’s possible to swim in the sea at this time of year but it’s generally a little too cool for most. The average sea temperature is 20 C.