Cedar Island — Water Temperature in January

Water Temperature Range

11°C

minimum

16°C

average

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

January: Climate and Swimming Opportunities

Average Night Air Temperature

4°C

Average Day Air Temperature

13°C

Precipitation Amount per Month

116 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

5 hrs

Average Wind Speed

18 km/h

Average Humidity

73%

With such a ratio between the average monthly temperatures of water and air, swimming usually feels uncomfortably cold. Even a short dip can leave you chilled, especially once you get out into the cool air.