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Weather in San Sebastián for January 2026

Your guide to San Sebastián weather in January - trends and predictions

    Temperatures

  • Until now, January 2026 in San Sebastián is slightly cooler than the historical average by -1.2 °C.

  • The forecast for the next days in San Sebastián predicts temperatures to be around 11 °C, close to the historical average.

  • In general, the average temperature in San Sebastián at the beginning of January is 10 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 9.7 °C by the end of January.

    • Rain 🌧️

  • San Sebastián in January brings notable rainfall, with an average of 16 rainy days and a total precipitation of 86 mm.

    • More

  • Is January a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
11°/6°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
74 %
Avg humidity

San Sebastián Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Overcast
12°
2
Overcast
12°
3
Patchy rain possible
10°
4
Overcast
10°
5
Light rain shower
9°
6
Light rain shower
8°
7
Light rain shower
9°
8
Light rain shower
10°
9
Patchy rain possible
9°
10
Light drizzle
9°
11
Light rain shower
10°
12
Partly cloudy
11°
13
Partly cloudy
11°
14
Light drizzle
11°
15
Light rain shower
11°
16
Patchy light drizzle
12°
17
Light drizzle
11°
18
Patchy rain possible
12°
19
Moderate rain
12°
20
Cloudy
12°
21
Patchy rain possible
15°
22
Moderate rain
12°
23
Moderate rain
11°
24
Patchy rain possible
12°
25
Patchy rain possible
11°
26
Moderate rain
10°
27
Moderate rain
9°
28
Moderate rain
10°
29
Moderate rain
8°
30
Patchy rain possible
10°
31
Patchy rain possible
10°

Temperatures trend during January in San Sebastián

See the weather trend as well as the moving average line

January weather in San Sebastián day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Overcast
Overcast
 12° /4° 0 mm 2
2 Jan. Overcast
Overcast
 12° /5° 1.4 mm 2
3 Jan. Patchy rain possible
Patchy rain possible
 10° /6° 4.3 mm 2
4 Jan. Overcast
Overcast
 10° /5° 1.8 mm 2
5 Jan. Light rain shower
Light rain shower
 9° /6° 9.5 mm 2
6 Jan. Light rain shower
Light rain shower
 8° /3° 14.6 mm 2
7 Jan. Light rain shower
Light rain shower
 9° /3° 5.9 mm 2
8 Jan. Light rain shower
Light rain shower
 10° /5° 2.4 mm 2
9 Jan. Patchy rain possible
Patchy rain possible
 9° /5° 5.9 mm 2
10 Jan. Light drizzle
Light drizzle
 9° /5° 3.9 mm 2
11 Jan. Light rain shower
Light rain shower
 10° /4° 3.9 mm 2
12 Jan. Partly cloudy
Partly cloudy
 11° /4° 0.4 mm 2
13 Jan. Partly cloudy
Partly cloudy
 11° /4° 0.1 mm 2
14 Jan. Light drizzle
Light drizzle
 11° /5° 0.5 mm 2
15 Jan. Light rain shower
Light rain shower
 11° /6° 1.9 mm 2
16 Jan. Patchy light drizzle
Patchy light drizzle
 12° /6° 1.5 mm 2
17 Jan. Light drizzle
Light drizzle
 11° /6° 6.3 mm 3
18 Jan. Patchy rain possible
Patchy rain possible
 12° /5° 0.6 mm 3
19 Jan. Moderate rain
Moderate rain
 12° /5° 12.9 mm 0.2
20 Jan. Cloudy
Cloudy
 12° /2° 0 mm 0.2
21 Jan. Patchy rain possible
Patchy rain possible
 15° /4° 4.8 mm 0.2
22 Jan. Moderate rain
Moderate rain
 12° /3° 6.3 mm 0.3
23 Jan. Moderate rain
Moderate rain
 11° /2° 11.3 mm 0.2
24 Jan. Patchy rain possible
Patchy rain possible
 12° /2° 2.3 mm 2
25 Jan. Patchy rain possible
Patchy rain possible
 11° /5° 2.8 mm 2
26 Jan. Moderate rain
Moderate rain
 10° /5° 11 mm 2
27 Jan. Moderate rain
Moderate rain
 9° /5° 15.7 mm 2
28 Jan. Moderate rain
Moderate rain
 10° /2° 5.3 mm 2
29 Jan. Moderate rain
Moderate rain
 8° /-2° 5 mm 1
30 Jan. Patchy rain possible
Patchy rain possible
 10° /-2° 0.2 mm 1
31 Jan. Patchy rain possible
Patchy rain possible
 10° /-2° 4.7 mm 2
Next
Important Notice
Our weather forecast for San Sebastián in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Sebastián forecast closer to your planned date for the most up-to-date weather information.
Change Month
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San Sebastián weather in January vs December vs February

Compare January weather in San Sebastián with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
DecemberJanuaryFebruary
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures11°/6°11°/6°13°/7°
Rainfall118 mm86 mm114 mm
Wind15.7 km/h16.6 km/h16.4 km/h
Humidity78%74%77%
Rainy days20 days16 days17 days
Dry days11 days15 days12 days

Planning a trip to San Sebastián? Discover the best time to visit

San Sebastián in January - FAQ

What are the expected maximum and minimum temperatures in San Sebastián during January?

During January, expect a variety of temperatures with highs around 11° and lows near 6°, suitable for diverse activities and preferences.

How much rainfall should be expected in San Sebastián during January?

Moderate rainfall is anticipated in San Sebastián during January, with a total of 86 mm spread over approximately 16 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in San Sebastián during January?

The average wind speed in San Sebastián during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to San Sebastián in January?

As you prepare for your trip to San Sebastián in January, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in San Sebastián, during January, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

January rainfall patterns in San Sebastián

Explore the daily rainfall trends and prepare for San Sebastiáns January weather 💧
Typically, San Sebastián has 16 rainy days in January with a total of 86 mm of rainfall.

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Location coordinates Where is San Sebastián?

Get accurate weather forecasts for San Sebastián, located at latitude 43.201 and longitude -4.423. Stay updated with localized weather information tailored for San Sebastián.

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