Alameda — Water Temperature in October

Water Temperature Range

11°C

minimum

16°C

average

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

October: Climate and Swimming Opportunities

Average Night Air Temperature

20°C

Average Day Air Temperature

30°C

Precipitation Amount per Month

67 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

8 hrs

Average Wind Speed

13 km/h

Average Humidity

74%

With such a ratio between the average monthly temperatures of water and air, the swim feels brisk and very refreshing. The air is warm enough to make the cool water easy to handle, especially for short swims.