Sea Temperature in San Sebastian in January

Complete information on the sea temperature range in the Bay of Biscay in San Sebastian in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in San Sebastian. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in San Sebastian in January

11°C

MINIMUN

13°C

AVERAGE

15°C

MAXIMUM

Historical Data of Water Temperature in January in San Sebastian

Water Temperature Chart for Bay of Biscay in San Sebastian in January

Sea Temperature Table in San Sebastian in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	15°C	13°C	13°C	13.5°C
Jan 2	14°C	13°C	14°C	13.5°C
Jan 3	14°C	13°C	14°C	13.5°C
Jan 4	14°C	13°C	13°C	13.0°C
Jan 5	14°C	14°C	13°C	13.5°C
Jan 6	14°C	13°C	13°C	13.3°C
Jan 7	14°C	13°C	13°C	13.3°C
Jan 8	14°C	13°C	13°C	13.3°C
Jan 9	14°C	13°C	13°C	13.3°C
Jan 10	14°C	13°C	13°C	13.3°C
Jan 11	14°C	13°C	13°C	13.3°C
Jan 12	13°C	13°C	13°C	13.3°C
Jan 13	14°C	13°C	13°C	13.5°C
Jan 14	13°C	13°C	13°C	13.0°C
Jan 15	13°C	13°C	13°C	13.0°C
Jan 16	13°C	13°C	13°C	13.0°C
Jan 17	13°C	13°C	13°C	13.0°C
Jan 18	13°C	13°C	13°C	13.0°C
Jan 19	13°C	13°C	12°C	12.8°C
Jan 20	14°C	13°C	12°C	13.0°C
Jan 21	13°C	13°C	12°C	12.8°C
Jan 22	13°C	13°C	12°C	12.8°C
Jan 23	13°C	13°C	14°C	13.3°C
Jan 24	14°C	13°C	12°C	12.8°C
Jan 25	14°C	13°C	13°C	13.0°C
Jan 26	13°C	13°C	14°C	13.3°C
Jan 27	13°C	13°C	13°C	13.0°C
Jan 28	12°C	13°C	12°C	12.5°C
Jan 29	13°C	12°C	12°C	12.8°C
Jan 30	13°C	12°C	12°C	12.5°C

San Sebastian Climate and Swimming Opportunities in January

12°C

Average Day Air Temperature

6°C

Average Night Air Temperature

120 mm

Precipitation Amount per Month

14 days

Number of Rainy Days

9 hrs

Daylight
per Day

3 hrs

Sunshine
per Day

15 km/h

Average Wind Speed

77%

Average
humidity

San Sebastian lies within the Basque Country in Spain. The average daytime temperature in San Sebastian in January is 12°C (54°F), while the nighttime average is 6°C (42°F). There are typically 14 rainy days during the month, with a total precipitation of 120 mm (4.7 inches). The daylight duration in January in San Sebastian is 9 hours, with an average of 3 hours of sunshine per day. The average wind speed in January is 15 km/h (9 mph), and the humidity level is around 77%.

The water temperature in San Sebastian in January ranges from 12°C to 13°C (54°F to 55°F). At the beginning of the month, the average temperature is around 13°C (55°F), shifting to 13°C (55°F) by mid-January and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in San Sebastian for January is 13°C (55°F). The water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in San Sebastian

What is the sea temperature in San Sebastian in January?

The water temperature in the Bay of Biscay in San Sebastian in January ranges from 12°C to 13°C (54°F to 55°F).

Is it possible to swim in the Bay of Biscay in San Sebastian in January?

The average sea temperature in San Sebastian in January is 13°C (55°F), and the air temperature is 12°C (54°F), so the water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.