Slemmestad — Water Temperature in October

Water Temperature Range

8°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	2025	2024	2023	2022
OCT 1	14°C	14°C	14°C	15°C
OCT 2	14°C	14°C	14°C	14°C
OCT 3	14°C	14°C	14°C	14°C
OCT 4	14°C	13°C	13°C	14°C
OCT 5	14°C	13°C	14°C	14°C
OCT 6	14°C	14°C	14°C	14°C
OCT 7	14°C	13°C	14°C	14°C
OCT 8	13°C	13°C	14°C	13°C
OCT 9	13°C	12°C	13°C	13°C
OCT 10	13°C	12°C	13°C	13°C
OCT 11	13°C	12°C	13°C	14°C
OCT 12	13°C	12°C	14°C	13°C
OCT 13	13°C	12°C	13°C	13°C
OCT 14	13°C	12°C	13°C	13°C
OCT 15	13°C	12°C	13°C	13°C
OCT 16	12°C	11°C	12°C	13°C
OCT 17	13°C	12°C	13°C	13°C
OCT 18	13°C	12°C	13°C	13°C
OCT 19	13°C	12°C	13°C	13°C
OCT 20	13°C	12°C	13°C	12°C
OCT 21	12°C	11°C	12°C	12°C
OCT 22	12°C	11°C	13°C	11°C
OCT 23	12°C	10°C	12°C	11°C
OCT 24	12°C	10°C	12°C	11°C
OCT 25	12°C	10°C	12°C	11°C
OCT 26	12°C	10°C	12°C	11°C
OCT 27	12°C	11°C	11°C	11°C
OCT 28	12°C	11°C	11°C	11°C
OCT 29	12°C	10°C	12°C	11°C
OCT 30	12°C	10°C	12°C	11°C
OCT 31	11°C	10°C	12°C	11°C

October: Climate and Swimming Opportunities

Average Night Air Temperature

4°C

Average Day Air Temperature

10°C

Precipitation Amount per Month

91 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

3 hrs

Average Wind Speed

13 km/h

Average Humidity

80%

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.