Jacksonville — Water Temperature in April

Water Temperature Range

15°C

minimum

20°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

27°C

Precipitation Amount per Month

60 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

9 hrs

Average Wind Speed

16 km/h

Average Humidity

69%

At such water and air temperatures, swimming is pleasant and refreshing rather than hot. After you get in, it feels comfortable, and you’ll warm up quickly when you come out.