Santa Ana — Water Temperature in October

Water Temperature Range

15°C

minimum

18°C

average

22°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
OCT 1	-10°C	16°C	16°C	17°C
OCT 2	17°C	16°C	16°C	17°C
OCT 3	16°C	17°C	16°C	18°C
OCT 4	16°C	17°C	16°C	17°C
OCT 5	17°C	17°C	17°C	17°C
OCT 6	17°C	17°C	17°C	17°C
OCT 7	17°C	17°C	17°C	17°C
OCT 8	17°C	17°C	18°C	17°C
OCT 9	17°C	18°C	17°C	17°C
OCT 10	17°C	18°C	18°C	17°C
OCT 11	17°C	17°C	16°C	17°C
OCT 12	17°C	18°C	17°C	17°C
OCT 13	17°C	18°C	19°C	16°C
OCT 14	17°C	18°C	19°C	16°C
OCT 15	17°C	18°C	17°C	17°C
OCT 16	17°C	19°C	19°C	17°C
OCT 17	17°C	18°C	17°C	18°C
OCT 18	17°C	18°C	17°C	17°C
OCT 19	17°C	19°C	19°C	18°C
OCT 20	17°C	19°C	18°C	18°C
OCT 21	17°C	19°C	18°C	18°C
OCT 22	17°C	19°C	18°C	18°C
OCT 23	17°C	20°C	19°C	19°C
OCT 24	17°C	20°C	20°C	19°C
OCT 25	17°C	19°C	18°C	19°C
OCT 26	18°C	19°C	18°C	19°C
OCT 27	18°C	20°C	19°C	20°C
OCT 28	18°C	21°C	20°C	20°C
OCT 29	18°C	21°C	19°C	22°C
OCT 30	18°C	21°C	19°C	21°C
OCT 31	19°C	21°C	19°C	22°C

October: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

19°C

Precipitation Amount per Month

119 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

7 hrs

Average Wind Speed

17 km/h

Average Humidity

72%

At such water and air temperatures, swimming often feels chilly and is best for short swims. Getting out can feel cold, so it helps to have dry clothes ready right away.