San Isidro — Water Temperature in October

Water Temperature Range

14°C

minimum

16°C

average

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

October: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

1 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

3 hrs

Average Wind Speed

14 km/h

Average Humidity

85%

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.