Gujan-Mestras — Water Temperature in January

Water Temperature Range

10°C

minimum

11°C

average

14°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
JAN 1	12°C	13°C	12°C	12°C
JAN 2	13°C	11°C	12°C	12°C
JAN 3	13°C	11°C	12°C	11°C
JAN 4	13°C	11°C	12°C	12°C
JAN 5	12°C	11°C	12°C	13°C
JAN 6	12°C	11°C	12°C	13°C
JAN 7	12°C	11°C	12°C	11°C
JAN 8	12°C	11°C	12°C	12°C
JAN 9	12°C	11°C	12°C	12°C
JAN 10	12°C	11°C	12°C	13°C
JAN 11	12°C	11°C	12°C	13°C
JAN 12	12°C	11°C	12°C	10°C
JAN 13	11°C	12°C	11°C	12°C
JAN 14	11°C	12°C	11°C	11°C
JAN 15	11°C	12°C	11°C	13°C
JAN 16	11°C	12°C	10°C	12°C
JAN 17	12°C	11°C	10°C	12°C
JAN 18	12°C	11°C	11°C	12°C
JAN 19	12°C	11°C	10°C	13°C
JAN 20	12°C	11°C	10°C	10°C
JAN 21	12°C	11°C	11°C	10°C
JAN 22	12°C	11°C	10°C	13°C
JAN 23	11°C	10°C	11°C	10°C
JAN 24	12°C	11°C	11°C	10°C
JAN 25	12°C	10°C	10°C	13°C
JAN 26	12°C	10°C	11°C	13°C
JAN 27	12°C	11°C	11°C	10°C
JAN 28	11°C	10°C	11°C	13°C
JAN 29	11°C	11°C	12°C	12°C
JAN 30	11°C	11°C	11°C	12°C
JAN 31	11°C	11°C	12°C	10°C

January: Climate and Swimming Opportunities

Average Night Air Temperature

3°C

Average Day Air Temperature

11°C

Precipitation Amount per Month

89 mm

Number of Rainy Days

Daylight per Day

9 hrs

Sunshine per Day

3 hrs

Average Wind Speed

15 km/h

Average Humidity

84%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.