Nine Mile — Water Temperature in December

Water Temperature Range

14°C

minimum

16°C

average

20°C

maximum

Water Temperature Chart for December

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

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

Climate and Swimming Opportunities in Nine Mile in December

Average Day Air Temperature

20°C

Average Night Air Temperature

11°C

Precipitation Amount per Month

52 mm

Number of Rainy Days

Daylight per Day

15 hrs

Sunshine per Day

7 hrs

Average Wind Speed

19 km/h

Average Humidity

72%

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.