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

44.5

°F

April 21, 10:27

Trend:

decreasing

Yesterday:

44.7°F

Tomorrow:

44.5°F

Sunrise:

05:44

Sunset:

20:49

Day Length:

15 h. 5 min.

Oslo in April

Minimum:

34.3°F

Average:

37.0°F

Maximum:

40.0°F

Sea water temperature in Oslo today

As of now, in Oslo, the water temperature is 44.5°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 0.7°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 49.0°F on 2022, while the historical minimum was 42.0°F on 2017.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 45.1°F, with minimum temperature starting at 44.5°F, while the maximum might reach 45.2°F.

Daily water temperature in Oslo

Date Current Year

actual* / forecast**

last year 10 years average
Apr 7 40.6°F 44.3°F 39.2°F
Apr 8 40.8°F 43.5°F 40.1°F
Apr 9 41.0°F 44.5°F 40.2°F
Apr 10 41.9°F 44.2°F 41.0°F
Apr 11 42.5°F 46.0°F 41.4°F
Apr 12 41.8°F 46.1°F 41.9°F
Apr 13 41.5°F 47.5°F 42.4°F
Apr 14 41.7°F 46.5°F 42.5°F
Apr 15 40.7°F 48.1°F 42.3°F
Apr 16 40.8°F 46.9°F 42.7°F
Apr 17 43.2°F 46.1°F 42.8°F
Apr 18 43.5°F 48.3°F 43.1°F
Apr 19 43.6°F 48.3°F 43.8°F
Apr 20 44.7°F 47.6°F 44.2°F
Apr 21 44.5°F 47.2°F 45.3°F
Apr 22 44.5°F 46.8°F 45.2°F
Apr 23 45.2°F 46.6°F 45.9°F
Apr 24 45.2°F 47.0°F 45.9°F
Apr 25 45.1°F 48.6°F 45.9°F
Apr 26 45.2°F 48.5°F 45.9°F
Apr 27 45.1°F 49.1°F 45.9°F
Apr 28 45.2°F 49.7°F 46.0°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 37.3°F in Winter, 43.3°F in Spring, 64.5°F in Summer, and 53.3°F in Autumn.