Cool
Average highs are around 15°C, so pack for cooler days.
April verdict
San Sebastian, Spain in April
Weather score20Poor
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 4.6h per day, so this is not one of the brighter months. Rainfall averages 122mm, so some wet days are possible.
April weather
Monthly averages
Temp
15°C
Rain
122mm
Sun
4.6h
Sea
14°C
Weather score
20
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 122mm, so some wet days are possible.
Limited sun
Sunshine averages 4.6h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare San Sebastian, Spain with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
April15°C average high
April is on the cooler side of San Sebastian's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
April122mm average rain
April is wetter than San Sebastian's yearly average, so flexible plans matter more.
Driest monthsJune to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
April4.6 hours average sun
April sits close to San Sebastian's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
April14°C average sea
April is below San Sebastian's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
April20 weather score
April scores below San Sebastian's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
