January · Spain
Best time to visit San Sebastian in January Weather, crowds & prices
Weather in San Sebastian in January
Average temperature 9°C, 173 mm of rain, about 15 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
3.0/10
Ranked #11 of 12 months
- Avg temp
- 9°C
- Rainfall
- 173 mm
- Humidity
- 79%
- Days with 6h+ sun
- 15
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
January in San Sebastian scores 3.0/10 for beach and coastal travel - ranked #11 of 12. Expect around 9°C, 173 mm of rain, and roughly 15 days with 6+ hours of sunshine this month.
San Sebastián wraps a shell-shaped bay, pintxos bars and the Basque coast into Spain's gastronomic capital.
January in San Sebastian — the hardest end of the year
January averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 173 mm this is a genuinely wet month: about 15 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 3/10 here, 11th of 12 months, against 8.4/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? July scores 5.4 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in San Sebastian in January?
- In January, San Sebastian averages 9°C, 173 mm of rain, and about 15 days with 6+ hours of sunshine. Its climate-comfort score is 3.0/10.
- Is January a good time to visit San Sebastian?
- January earns a 3.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in San Sebastian in January?
- Expect about 173 mm of rain in January. Average humidity is 79% and there are about 15 days with 6+ hours of sunshine.
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