La Jolla Shores — Water Temperature in April

Water Temperature Range

13°C

minimum

15°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

11°C

Average Day Air Temperature

21°C

Precipitation Amount per Month

22 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

9 hrs

Average Wind Speed

12 km/h

Average Humidity

66%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.