All data are in degrees Fahrenheit

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Water temperature in Oslo

Detailed information about the current water temperature in Oslo. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Oslo now

42.0

°F

December 2, 23:29

Trend:

decreasing

Yesterday:

44.9°F

Tomorrow:

40.5°F

Sunrise:

08:52

Sunset:

15:20

Day Length:

6 h. 28 min.

Oslo in December

Minimum:

34.3°F

Average:

37.9°F

Maximum:

40.8°F

Sea water temperature in Oslo today

As of now, in Oslo, the water temperature is 42.0°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.3°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall considerably.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 44.1°F on 2022, while the historical minimum was 40.3°F on 2020.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 40.3°F, the minimum temperature may reach 38.7°F, and the maximum might stay at 40.8°F.

Daily water temperature in Oslo

Date Current Year

actual* / forecast**

last year 10 years average
Nov 18 47.6°F 45.2°F 46.4°F
Nov 19 46.8°F 45.0°F 46.1°F
Nov 20 46.4°F 44.7°F 45.7°F
Nov 21 45.9°F 44.9°F 45.4°F
Nov 22 45.4°F 44.6°F 45.0°F
Nov 23 45.0°F 44.3°F 44.7°F
Nov 24 45.0°F 44.4°F 44.7°F
Nov 25 44.0°F 44.4°F 44.5°F
Nov 26 44.0°F 44.3°F 44.5°F
Nov 27 44.0°F 44.0°F 44.2°F
Nov 28 44.5°F 44.0°F 44.2°F
Nov 29 45.0°F 43.9°F 44.3°F
Nov 30 45.1°F 43.8°F 44.2°F
Dec 1 44.9°F 41.9°F 44.0°F
Dec 2 42.0°F 40.3°F 42.2°F
Dec 3 40.5°F 41.8°F 40.7°F
Dec 4 38.7°F 40.7°F 39.0°F
Dec 5 40.7°F 42.7°F 40.9°F
Dec 6 40.6°F 42.4°F 40.9°F
Dec 7 40.7°F 42.2°F 40.9°F
Dec 8 40.8°F 42.5°F 41.1°F
Dec 9 40.4°F 40.6°F 40.7°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Oslo by month

In an average year, Oslo offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Oslo was recorded on July 28, 2018, reaching a 73.3°F. While the coldest temperature occurred on January 19, 2025, dipping to 32.0°F. The average readings by season are 37.2°F in Winter, 43.3°F in Spring, 64.1°F in Summer, and 53.2°F in Autumn.