Rognan — Water Temperature in August

Water Temperature Range

10°C

minimum

13°C

average

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

August: Climate and Swimming Opportunities

Average Night Air Temperature

10°C

Average Day Air Temperature

14°C

Precipitation Amount per Month

100 mm

Number of Rainy Days

Daylight per Day

17 hrs

Sunshine per Day

6 hrs

Average Wind Speed

15 km/h

Average Humidity

79%

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.