San Luis — Water Temperature in October

Water Temperature Range

13°C

minimum

17°C

average

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

October: Climate and Swimming Opportunities

Average Night Air Temperature

12°C

Average Day Air Temperature

20°C

Precipitation Amount per Month

101 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

7 hrs

Average Wind Speed

17 km/h

Average Humidity

78%

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.