San Sebastián Weather in January
In San Sebastián, January brings moderate daytime temperatures around 12°C (54°F), with nights cooling to 7°C (45°F). Expect quite a bit of rainfall this month.
Rainfall in San Sebastián in January
Looking at the last 30 years, the data shows about 18 days with rain, averaging 145 mm (5.7 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in San Sebastián in January
In January, San Sebastián sees moderate temperatures, with highs of 12°C (54°F). Nights drop to around 7°C (45°F). The winter season takes place during January. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. This month often claims the chilliest averages of the year.
Sunshine in San Sebastián in January
The area experiences limited sunny days, amounting to roughly 90 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.January in San Sebastián has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Spain, check out our San Sebastián's climate page.
San Sebastián Temperature in January
Min Temperature
7°C (45°F)
Max Temperature
12°C (54°F)
Chance of Rain
61%
Precipitation
145 mm (5.7 in)
Rainy days
18 days
Humidity
75%
Sunshine
90 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in San Sebastián typically stay consistent throughout January, with daily highs averaging around 12°C (54°F). Nights are cold, with lows around 5°C (41°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for San Sebastián in January
Browse day-by-day weather records for San Sebastián spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Sebastián historical weather extremes in January
Based on weather observations in San Sebastián between 1976 and 2025, these are the recorded extremes during January.
- San Sebastián recorded its highest January temperature of 24°C (75°F) on January 1, 2022.
- San Sebastián experienced its chilliest January day on January 8, 1985, reaching only -3°C (27°F).
- The lowest overnight temperature recorded in January was -7°C (19°F) (January 14, 1987).
Best Places in Spain in January
Find out more about the weather in Spain and which places have the best travel conditions in this month. See all of Spain in January →
perfect weather
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tolerable
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What to Wear in San Sebastián in January
The weather can be unpredictable in January, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in San Sebastián in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Spain, check out our San Sebastián's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Sebastián climate overview or explore weather in Spain.
