Rio Claro — Water Temperature in October

Water Temperature Range

16°C

minimum

21°C

average

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

October: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

106 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

6 hrs

Average Wind Speed

8 km/h

Average Humidity

75%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.