Weather Guide

San Sebastian, Spain Average Monthly Weather

Weather score32Poor annual avg

Best months: July, August, September

Across the year, average daytime temperatures are around 17°C, sunshine averages 4.8h per day, and rainfall totals about 1284mm. Sea temperatures average 17°C across the year.

San Sebastian, Spain, Spain travel weather guide
Photo by nike159 on Pixabay

Annual weather

Annual averages

Temp

17°C

Rain

1284mm

Annual total

Sun

4.8h

Sea

17°C

Weather score

32

Poor avg

Seasonal climate calendar

Trip feel

Cool

Average highs are around 14°C, so pack for cooler days.

Showers

Rainfall averages 143mm, so some wet days are possible.

Limited sun

Sunshine averages 3.3h per day, so this is not one of the brighter months.

Cool sea

Sea temperatures average 16°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

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November14°C average high

November 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.

November143mm average rain

November is one of San Sebastian's wettest months, so rain is likely to be a major planning factor.

Driest monthsJune to August

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

November3.3 hours average sun

November is below San Sebastian's yearly sunshine average, so bright-day planning is less reliable than in peak months.

Brightest monthsJune to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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November16°C average sea

November is close to San Sebastian's yearly sea-temperature average, so swimming comfort is fairly typical.

Warmest seaJuly to September

Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.

Weather score

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November16 weather score

November is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJune to September

These months have the strongest weather score in the monthly averages.

Hotels in San Sebastian, Spain