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	2026	2025	2024	2023
OCT 1	-	18°C	17°C	18°C
OCT 2	17°C	17°C	16°C	19°C
OCT 3	17°C	16°C	17°C	18°C
OCT 4	17°C	17°C	18°C	18°C
OCT 5	17°C	18°C	18°C	19°C
OCT 6	17°C	17°C	17°C	19°C
OCT 7	18°C	16°C	17°C	18°C
OCT 8	18°C	17°C	17°C	18°C
OCT 9	18°C	17°C	17°C	18°C
OCT 10	18°C	17°C	17°C	17°C
OCT 11	18°C	17°C	18°C	18°C
OCT 12	18°C	17°C	18°C	16°C
OCT 13	17°C	16°C	18°C	16°C
OCT 14	17°C	16°C	18°C	16°C
OCT 15	17°C	16°C	17°C	16°C
OCT 16	17°C	16°C	17°C	16°C
OCT 17	-	16°C	17°C	16°C
OCT 18	-	16°C	16°C	16°C
OCT 19	-	15°C	16°C	16°C
OCT 20	-	15°C	16°C	16°C
OCT 21	-	16°C	17°C	16°C
OCT 22	-	16°C	16°C	17°C
OCT 23	-	15°C	16°C	16°C
OCT 24	-	17°C	16°C	17°C
OCT 25	-	15°C	16°C	16°C
OCT 26	-	16°C	16°C	17°C
OCT 27	-	16°C	16°C	17°C
OCT 28	-	16°C	16°C	17°C
OCT 29	-	15°C	16°C	18°C
OCT 30	-	15°C	15°C	17°C
OCT 31	-	16°C	15°C	18°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.