Rio Grande — Water Temperature in August

Water Temperature Range

11°C

minimum

14°C

average

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

August: Climate and Swimming Opportunities

Average Night Air Temperature

7°C

Average Day Air Temperature

20°C

Precipitation Amount per Month

151 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

5 hrs

Average Wind Speed

8 km/h

Average Humidity

81%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.