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

48.5

°F

September 25, 03:01

Trend:

decreasing

Yesterday:

48.9°F

Tomorrow:

48.3°F

Sunrise:

06:34

Sunset:

18:36

Day Length:

12 h. 2 min.

Tromsø in October

Minimum:

38.3°F

Average:

40.1°F

Maximum:

42.0°F

Sea water temperature in Tromsø today

As of now, in Tromsø, the water temperature is 48.5°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 about the same as 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 slightly 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 51.5°F on 2024, while the historical minimum was 46.8°F on 2023.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 48.2°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
Sep 11 49.4°F 50.8°F 50.3°F
Sep 12 49.2°F 51.5°F 50.2°F
Sep 13 49.2°F 51.4°F 50.2°F
Sep 14 49.4°F 51.5°F 50.2°F
Sep 15 49.4°F 50.1°F 49.8°F
Sep 16 49.7°F 50.2°F 49.7°F
Sep 17 49.8°F 50.5°F 49.7°F
Sep 18 49.3°F 50.3°F 49.5°F
Sep 19 48.7°F 50.4°F 49.3°F
Sep 20 48.9°F 50.0°F 49.0°F
Sep 21 49.4°F 49.9°F 49.0°F
Sep 22 48.6°F 49.8°F 49.0°F
Sep 23 48.8°F 49.2°F 48.9°F
Sep 24 48.9°F 49.2°F 48.7°F
Sep 25 48.5°F 48.9°F 48.4°F
Sep 26 48.3°F 48.8°F 48.1°F
Sep 27 48.3°F 48.7°F 48.1°F
Sep 28 48.3°F 48.9°F 48.1°F
Sep 29 48.2°F 48.9°F 48.1°F
Sep 30 48.3°F 49.6°F 48.2°F
Oct 1 48.2°F 49.1°F 48.1°F
Oct 2 48.2°F 49.1°F 48.0°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 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, 39.2°F in Spring, 49.1°F in Summer, and 47.0°F in Autumn.