Round Island — Water Temperature in January

Water Temperature Range

27°C

minimum

28°C

average

31°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	2026	2025	2024	2023
JAN 1	29°C	28°C	29°C	28°C
JAN 2	29°C	28°C	28°C	28°C
JAN 3	29°C	28°C	28°C	27°C
JAN 4	29°C	28°C	28°C	27°C
JAN 5	29°C	28°C	28°C	29°C
JAN 6	28°C	28°C	29°C	27°C
JAN 7	29°C	28°C	29°C	28°C
JAN 8	28°C	28°C	27°C	28°C
JAN 9	28°C	27°C	27°C	29°C
JAN 10	28°C	28°C	28°C	29°C
JAN 11	28°C	27°C	28°C	28°C
JAN 12	27°C	28°C	27°C	27°C
JAN 13	28°C	28°C	28°C	27°C
JAN 14	28°C	28°C	27°C	28°C
JAN 15	28°C	28°C	28°C	29°C
JAN 16	27°C	29°C	28°C	28°C
JAN 17	27°C	29°C	27°C	27°C
JAN 18	29°C	29°C	28°C	27°C
JAN 19	28°C	29°C	28°C	29°C
JAN 20	28°C	28°C	27°C	28°C
JAN 21	29°C	28°C	28°C	29°C
JAN 22	29°C	29°C	28°C	29°C
JAN 23	28°C	28°C	28°C	28°C
JAN 24	28°C	28°C	28°C	28°C
JAN 25	29°C	29°C	29°C	29°C
JAN 26	29°C	29°C	28°C	28°C
JAN 27	29°C	29°C	28°C	28°C
JAN 28	28°C	28°C	28°C	29°C
JAN 29	29°C	28°C	28°C	27°C
JAN 30	28°C	28°C	28°C	27°C
JAN 31	28°C	29°C	28°C	28°C

January: Climate and Swimming Opportunities

Average Night Air Temperature

24°C

Average Day Air Temperature

29°C

Precipitation Amount per Month

382 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

5 hrs

Average Wind Speed

13 km/h

Average Humidity

81%

At such water and air temperatures, swimming feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.