Coffin Bay — Water Temperature in December

Water Temperature Range

16°C

minimum

19°C

average

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

December: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

24°C

Precipitation Amount per Month

28 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

18 km/h

Average Humidity

45%

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.

Water Temperature in Nearby Locations

Port Lincoln