Hamilton — Water Temperature in April

Water Temperature Range

18°C

minimum

20°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

17°C

Average Day Air Temperature

23°C

Precipitation Amount per Month

94 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

8 hrs

Average Wind Speed

20 km/h

Average Humidity

76%

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.