All data are in degrees Fahrenheit

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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.
Sea temperature in Tromsø now

38.9

°F

March 3, 01:34

Trend:

decreasing

Yesterday:

39.0°F

Tomorrow:

38.8°F

Sunrise:

07:03

Sunset:

16:52

Day Length:

9 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 38.9°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 1.8°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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 40.5°F on 2025, while the historical minimum was 32.0°F on 2017.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 39.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Tromsø

Date Current Year

actual* / forecast**

last year 10 years average
Feb 17 38.4°F 40.1°F 37.5°F
Feb 18 38.5°F 40.2°F 37.7°F
Feb 19 39.6°F 39.9°F 37.7°F
Feb 20 39.0°F 40.0°F 37.4°F
Feb 21 39.0°F 39.8°F 37.3°F
Feb 22 39.1°F 39.9°F 37.2°F
Feb 23 39.3°F 40.2°F 37.4°F
Feb 24 38.6°F 39.5°F 37.0°F
Feb 25 38.3°F 38.8°F 37.4°F
Feb 26 38.4°F 39.3°F 37.4°F
Feb 27 37.6°F 39.3°F 37.0°F
Feb 28 38.5°F 38.5°F 36.9°F
Mar 1 38.5°F 39.4°F 37.0°F
Mar 2 39.0°F 41.6°F 37.1°F
Mar 3 38.9°F 40.5°F 37.1°F
Mar 4 38.8°F 39.6°F 37.0°F
Mar 5 39.3°F 40.4°F 37.4°F
Mar 6 39.2°F 41.0°F 37.4°F
Mar 7 39.0°F 40.2°F 37.1°F
Mar 8 39.1°F 42.0°F 37.3°F
Mar 9 39.1°F 40.6°F 37.3°F
Mar 10 39.1°F 39.8°F 37.3°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, 39.0°F in Spring, 49.1°F in Summer, and 47.1°F in Autumn.