What is the current water temperature in Tromsø?

Q: What is the current water temperature in Tromsø?

As of now, in Tromsø, the water temperature is 3.59°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 > Tromsø

Water temperature in Tromsø

Detailed information about the current water temperature in Tromsø. 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.

38.5

°F

March 17, 23:45

Trend:

decreasing

Yesterday:

38.9°F

Tomorrow:

38.2°F

Sunrise:

05:59

Sunset:

17:48

Day Length:

11 h. 49 min.

Tromsø in March

Minimum:

37.9°F

Average:

40.9°F

Maximum:

42.6°F

Sea water temperature in Tromsø today

As of now, in Tromsø, the water temperature is 38.5°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 1.2°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 fall 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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 39.9°F on 2025, while the historical minimum was 32.0°F on 2017.

latest data

last year

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 38.0°F, the minimum temperature may reach 37.7°F, and the maximum might stay at 38.4°F.

Daily water temperature in Tromsø

Date	Current Year actual* / forecast**	last year	10 years average
Mar 3	38.6°F	40.5°F	37.2°F
Mar 4	38.3°F	39.6°F	37.1°F
Mar 5	38.8°F	40.4°F	37.6°F
Mar 6	39.4°F	41.0°F	37.5°F
Mar 7	40.9°F	40.2°F	37.5°F
Mar 8	40.7°F	42.0°F	37.6°F
Mar 9	39.7°F	40.6°F	37.5°F
Mar 10	39.5°F	39.8°F	37.5°F
Mar 11	39.6°F	39.0°F	37.5°F
Mar 12	39.2°F	38.3°F	37.5°F
Mar 13	38.8°F	38.0°F	37.2°F
Mar 14	40.2°F	38.2°F	37.5°F
Mar 15	40.2°F	41.3°F	37.8°F
Mar 16	38.9°F	40.4°F	37.6°F
Mar 17	38.5°F	39.9°F	37.2°F
Mar 18	38.2°F	39.4°F	37.0°F
Mar 19	38.4°F	38.8°F	37.1°F
Mar 20	38.0°F	38.8°F	36.8°F
Mar 21	37.7°F	38.6°F	36.4°F
Mar 22	38.1°F	41.6°F	36.8°F
Mar 23	37.9°F	39.7°F	36.7°F
Mar 24	37.9°F	38.8°F	36.7°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 Tromsø by month

In an average year, Tromsø offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Tromsø was recorded on August 2, 2020, reaching a 56.7°F. While the coldest temperature occurred on February 17, 2017, dipping to 32.0°F. The average readings by season are 39.7°F in Winter, 39.1°F in Spring, 49.1°F in Summer, and 47.1°F in Autumn.