San Sebastian weather
Our guide to the weather in San Sebastian during January
We've looked at the most up-to-date weather data for San Sebastian, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about San Sebastian weather in January.
What's the temperature like in San Sebastian during January?
The temperature is extremely stable in January with average highs of 20℃ and lows just 1℃ lower at 18℃. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in San Sebastian during January?
On average, in January you'll see rain on just one day in the month. In other words, you shouldn't see any of the wet stuff. You're not likely to see a thunderstorm during your trip.
Is it windy in San Sebastian during January?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during January. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.
Is it too cold to swim in the sea in San Sebastian during January?
The water around San Sebastian is a bracing 13℃ during January and is too cold for for swimming. Those who frequently swim in cold open water might want to take a very quick dip, but prolonged exposure could cause hypothermia. A winter wetsuit will allow longer exposure to the water.
Weather in San Sebastian
Our month-by-month guide to the weather and climate in San Sebastian
San Sebastian weather in
JanuarySan Sebastian weather in
FebruarySan Sebastian weather in
MarchSan Sebastian weather in
AprilSan Sebastian weather in
MaySan Sebastian weather in
JuneSan Sebastian weather in
JulySan Sebastian weather in
AugustSan Sebastian weather in
SeptemberSan Sebastian weather in
OctoberSan Sebastian weather in
NovemberSan Sebastian weather in
December