Santa Barbara — Water Temperature in April

Water Temperature Range

11°C

minimum

14°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

9°C

Average Day Air Temperature

21°C

Precipitation Amount per Month

31 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

10 hrs

Average Wind Speed

15 km/h

Average Humidity

69%

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.