What is the current water temperature in Oslo?

Q: What is the current water temperature in Oslo?

As of now, in Oslo, the water temperature is 4.21°C. 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.

Norway > Oslo

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.

39.6

°F

December 26, 03:23

Trend:

increasing

Yesterday:

39.4°F

Tomorrow:

39.8°F

Sunrise:

09:20

Sunset:

15:15

Day Length:

5 h. 55 min.

Oslo in January

Minimum:

34.1°F

Average:

37.1°F

Maximum:

40.2°F

Sea water temperature in Oslo today

As of now, in Oslo, the water temperature is 39.6°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 2.3°F higher 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 rise a bit.

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 42.1°F on 2020, while the historical minimum was 32.0°F on 2019.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 40.0°F, with minimum temperature starting at 39.4°F, while the maximum might reach 40.9°F.

Daily water temperature in Oslo

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	39.4°F	37.0°F	37.1°F
Jan 2	39.6°F	38.8°F	37.3°F
Dec 12	40.5°F	38.5°F	40.0°F
Dec 13	40.4°F	38.8°F	40.0°F
Dec 14	40.3°F	38.8°F	39.8°F
Dec 15	42.5°F	38.2°F	39.6°F
Dec 16	42.8°F	39.1°F	39.6°F
Dec 17	43.3°F	38.7°F	40.2°F
Dec 18	41.8°F	37.9°F	38.6°F
Dec 19	41.5°F	39.9°F	38.6°F
Dec 20	43.3°F	39.3°F	39.4°F
Dec 21	42.9°F	40.6°F	39.5°F
Dec 22	42.1°F	40.6°F	39.5°F
Dec 23	41.7°F	39.3°F	39.1°F
Dec 24	41.8°F	39.3°F	38.8°F
Dec 25	39.4°F	37.6°F	37.1°F
Dec 26	39.6°F	37.4°F	37.3°F
Dec 27	39.8°F	37.7°F	37.5°F
Dec 28	39.6°F	37.7°F	37.3°F
Dec 29	40.0°F	40.7°F	37.8°F
Dec 30	40.4°F	39.1°F	38.1°F
Dec 31	40.9°F	38.9°F	38.6°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.