Oceanside — Water Temperature in October

Water Temperature Range

16°C

minimum

19°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	2025	2024	2023	2022
OCT 1	20°C	20°C	19°C	21°C
OCT 2	20°C	20°C	21°C	20°C
OCT 3	19°C	20°C	20°C	21°C
OCT 4	20°C	19°C	20°C	21°C
OCT 5	20°C	20°C	19°C	21°C
OCT 6	20°C	20°C	20°C	21°C
OCT 7	19°C	19°C	20°C	21°C
OCT 8	19°C	19°C	19°C	21°C
OCT 9	20°C	19°C	19°C	21°C
OCT 10	20°C	19°C	20°C	22°C
OCT 11	19°C	18°C	20°C	21°C
OCT 12	20°C	18°C	20°C	21°C
OCT 13	19°C	18°C	17°C	21°C
OCT 14	19°C	18°C	18°C	21°C
OCT 15	19°C	18°C	18°C	21°C
OCT 16	20°C	19°C	18°C	21°C
OCT 17	19°C	18°C	18°C	21°C
OCT 18	19°C	17°C	20°C	21°C
OCT 19	19°C	17°C	20°C	21°C
OCT 20	19°C	18°C	18°C	21°C
OCT 21	20°C	18°C	19°C	22°C
OCT 22	20°C	18°C	19°C	21°C
OCT 23	19°C	18°C	18°C	21°C
OCT 24	19°C	18°C	18°C	20°C
OCT 25	19°C	18°C	18°C	21°C
OCT 26	19°C	19°C	18°C	21°C
OCT 27	18°C	18°C	18°C	21°C
OCT 28	18°C	18°C	18°C	19°C
OCT 29	19°C	19°C	19°C	19°C
OCT 30	18°C	18°C	18°C	19°C
OCT 31	19°C	18°C	19°C	19°C

October: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

24°C

Precipitation Amount per Month

11 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

8 hrs

Average Wind Speed

10 km/h

Average Humidity

67%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.