Kiyu — Water Temperature in August

Water Temperature Range

9°C

minimum

13°C

average

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

August: Climate and Swimming Opportunities

Average Night Air Temperature

7°C

Average Day Air Temperature

15°C

Precipitation Amount per Month

78 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

5 hrs

Average Wind Speed

17 km/h

Average Humidity

77%

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.