Dewees Island — Water Temperature in January

Water Temperature Range

12°C

minimum

16°C

average

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

January: Climate and Swimming Opportunities

Average Night Air Temperature

4°C

Average Day Air Temperature

15°C

Precipitation Amount per Month

87 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

6 hrs

Average Wind Speed

15 km/h

Average Humidity

70%

At such water and air temperatures, swimming often feels chilly and is best for short swims. Getting out can feel cold, so it helps to have dry clothes ready right away.