Cannon Rocks — Water Temperature in April

Water Temperature Range

17°C

minimum

20°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

23°C

Precipitation Amount per Month

62 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

7 hrs

Average Wind Speed

12 km/h

Average Humidity

77%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.