Geraldton — Water Temperature in December

Water Temperature Range

19°C

minimum

23°C

average

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

December: Climate and Swimming Opportunities

Average Night Air Temperature

16°C

Average Day Air Temperature

27°C

Precipitation Amount per Month

9 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

11 hrs

Average Wind Speed

20 km/h

Average Humidity

44%

At such water and air temperatures, swimming is pleasant and refreshing rather than hot. After you get in, it feels comfortable, and you’ll warm up quickly when you come out.

Water Temperature in Nearby Locations

Port Denison