Netarts — Water Temperature in January

Water Temperature Range

8°C

minimum

10°C

average

12°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

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

January: Climate and Swimming Opportunities

Average Night Air Temperature

3°C

Average Day Air Temperature

10°C

Precipitation Amount per Month

339 mm

Number of Rainy Days

Daylight per Day

9 hrs

Sunshine per Day

3 hrs

Average Wind Speed

18 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.