Cumberland Island — Water Temperature in April

Water Temperature Range

17°C

minimum

21°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

24°C

Precipitation Amount per Month

99 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

9 hrs

Average Wind Speed

14 km/h

Average Humidity

72%

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.