Boat Harbour Beach — Water Temperature in December

Water Temperature Range

13°C

minimum

16°C

average

19°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	2025	2024	2023	2022
DEC 1	16°C	16°C	15°C	16°C
DEC 2	15°C	15°C	15°C	15°C
DEC 3	15°C	15°C	15°C	15°C
DEC 4	15°C	15°C	15°C	15°C
DEC 5	16°C	16°C	16°C	15°C
DEC 6	16°C	16°C	15°C	16°C
DEC 7	16°C	16°C	16°C	16°C
DEC 8	16°C	16°C	16°C	15°C
DEC 9	16°C	16°C	16°C	16°C
DEC 10	16°C	16°C	16°C	16°C
DEC 11	16°C	16°C	16°C	16°C
DEC 12	16°C	16°C	15°C	16°C
DEC 13	16°C	16°C	15°C	16°C
DEC 14	16°C	16°C	15°C	16°C
DEC 15	16°C	16°C	15°C	16°C
DEC 16	16°C	16°C	15°C	17°C
DEC 17	16°C	16°C	15°C	17°C
DEC 18	16°C	16°C	15°C	17°C
DEC 19	16°C	16°C	15°C	17°C
DEC 20	16°C	16°C	15°C	17°C
DEC 21	16°C	16°C	15°C	17°C
DEC 22	16°C	16°C	15°C	17°C
DEC 23	17°C	17°C	16°C	18°C
DEC 24	17°C	17°C	16°C	17°C
DEC 25	17°C	17°C	16°C	17°C
DEC 26	17°C	17°C	16°C	17°C
DEC 27	17°C	17°C	16°C	17°C
DEC 28	17°C	17°C	16°C	18°C
DEC 29	17°C	17°C	16°C	18°C
DEC 30	17°C	17°C	16°C	18°C
DEC 31	17°C	17°C	15°C	18°C

December: Climate and Swimming Opportunities

Average Night Air Temperature

10°C

Average Day Air Temperature

21°C

Precipitation Amount per Month

53 mm

Number of Rainy Days

Daylight per Day

15 hrs

Sunshine per Day

8 hrs

Average Wind Speed

17 km/h

Average Humidity

61%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.