Cool
Average highs are around 11°C, so pack for cooler days.
January verdict
San Sebastian, Spain in January
Weather score14Poor
Poor for holiday weather
Average highs are around 11°C, so pack for cooler days. Sunshine averages 2.9h per day, so this is not one of the brighter months. Rainfall averages 127mm, so some wet days are possible.
January weather
Monthly averages
Temp
11°C
Rain
127mm
Sun
2.9h
Sea
13°C
Weather score
14
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 127mm, so some wet days are possible.
Limited sun
Sunshine averages 2.9h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 13°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
January11°C average high
January has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
January127mm average rain
January 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
January2.9 hours average sun
January is one of San Sebastian's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January13°C average sea
January is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
January14 weather score
January 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.
