Mornington — Water Temperature in January

Water Temperature Range

15°C

minimum

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

January: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

24°C

Precipitation Amount per Month

46 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

21 km/h

Average Humidity

56%

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.