What is the current water temperature in Trondheim?

Q: What is the current water temperature in Trondheim?

As of now, in Trondheim, the water temperature is 14.48°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 > Trondheim

Water temperature in Trondheim

Detailed information about the current water temperature in Trondheim. 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.

58.1

°F

June 11, 04:05

Trend:

increasing

Yesterday:

58.0°F

Tomorrow:

58.5°F

Sunrise:

03:08

Sunset:

23:29

Day Length:

20 h. 21 min.

Trondheim in June

Minimum:

37.5°F

Average:

41.9°F

Maximum:

43.3°F

Sea water temperature in Trondheim today

As of now, in Trondheim, the water temperature is 58.1°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 2.8°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 rise a bit.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 60.7°F on 2021, while the historical minimum was 51.9°F on 2020.

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 58.9°F, with minimum temperature starting at 58.4°F, while the maximum might reach 59.5°F.

Daily water temperature in Trondheim

Date	Current Year actual* / forecast**	last year	10 years average
May 28	50.3°F	49.7°F	52.1°F
May 29	50.2°F	49.8°F	52.3°F
May 30	49.9°F	49.6°F	52.3°F
May 31	51.6°F	50.5°F	52.6°F
Jun 1	53.6°F	50.6°F	52.8°F
Jun 2	53.9°F	51.1°F	53.1°F
Jun 3	53.7°F	52.7°F	53.3°F
Jun 4	56.0°F	52.4°F	53.6°F
Jun 5	55.6°F	52.9°F	54.0°F
Jun 6	55.0°F	52.5°F	53.7°F
Jun 7	55.8°F	52.3°F	54.1°F
Jun 8	55.3°F	52.9°F	54.6°F
Jun 9	58.3°F	53.1°F	54.9°F
Jun 10	58.0°F	53.9°F	55.2°F
Jun 11	58.1°F	54.1°F	55.2°F
Jun 12	58.5°F	53.8°F	55.7°F
Jun 13	58.4°F	54.1°F	55.5°F
Jun 14	58.9°F	54.9°F	56.0°F
Jun 15	59.5°F	58.4°F	56.6°F
Jun 16	59.1°F	57.8°F	56.3°F
Jun 17	58.8°F	57.2°F	56.0°F
Jun 18	59.2°F	56.6°F	56.4°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 Trondheim by month

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

The warmest water in Trondheim was recorded on July 24, 2025, reaching a 71.6°F. While the coldest temperature occurred on March 16, 2022, dipping to 34.1°F. The average readings by season are 41.7°F in Winter, 43.9°F in Spring, 58.7°F in Summer, and 50.4°F in Autumn.