Henley Beach — Water Temperature in January

Water Temperature Range

17°C

minimum

20°C

average

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

January: Climate and Swimming Opportunities

Average Night Air Temperature

16°C

Average Day Air Temperature

26°C

Precipitation Amount per Month

131 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

10 hrs

Average Wind Speed

18 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.