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 4.89°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.

40.8

°F

April 8, 14:45

Trend:

increasing

Yesterday:

40.6°F

Tomorrow:

40.9°F

Sunrise:

06:23

Sunset:

20:17

Day Length:

13 h. 54 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 40.8°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 0.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. 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 43.5°F on 2025, while the historical minimum was 37.0°F on 2016.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 42.5°F, with minimum temperature starting at 40.9°F, while the maximum might reach 43.3°F.

Daily water temperature in Oslo

Date	Current Year actual* / forecast**	last year	10 years average
Mar 25	34.7°F	38.9°F	37.3°F
Mar 26	36.5°F	39.5°F	37.8°F
Mar 27	36.1°F	39.3°F	38.5°F
Mar 28	36.5°F	39.0°F	38.3°F
Mar 29	39.0°F	40.4°F	38.8°F
Mar 30	38.5°F	42.0°F	38.9°F
Mar 31	38.7°F	41.3°F	38.7°F
Apr 1	39.1°F	40.7°F	38.4°F
Apr 2	42.3°F	41.5°F	39.4°F
Apr 3	41.4°F	42.8°F	39.8°F
Apr 4	39.8°F	44.0°F	39.5°F
Apr 5	41.1°F	42.3°F	39.3°F
Apr 6	40.1°F	43.1°F	39.7°F
Apr 7	40.6°F	44.3°F	39.2°F
Apr 8	40.8°F	43.5°F	40.0°F
Apr 9	40.9°F	44.5°F	40.1°F
Apr 10	41.7°F	44.2°F	40.9°F
Apr 11	42.1°F	46.0°F	41.3°F
Apr 12	42.7°F	46.1°F	42.0°F
Apr 13	43.3°F	47.5°F	42.5°F
Apr 14	43.3°F	46.5°F	42.5°F
Apr 15	43.2°F	48.1°F	42.4°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.