Santa Ana — Water Temperature in April

Water Temperature Range

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

19°C

Precipitation Amount per Month

107 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

6 hrs

Average Wind Speed

14 km/h

Average Humidity

76%

With such a ratio between the average monthly temperatures of water and air, swimming can feel slightly cool at first but still quite doable. It’s more comfortable if the sun is out, and you may want a towel or hoodie right after.