What is the current water temperature in Härnösand?

Q: What is the current water temperature in Härnösand?

As of now, in Härnösand, the water temperature is 7.6°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.

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Water temperature in Härnösand

Detailed information about the current water temperature in Härnösand. 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.

45.7

°F

May 31, 04:20

Trend:

stable

Yesterday:

45.1°F

Tomorrow:

45.6°F

Sunrise:

03:10

Sunset:

22:23

Day Length:

19 h. 13 min.

Härnösand in June

Minimum:

33.0°F

Average:

35.7°F

Maximum:

37.7°F

Sea water temperature in Härnösand today

As of now, in Härnösand, the water temperature is 45.7°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 1.6°F lower 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

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 minimum temperature for this date. The maximum temperature recorded for this date was 53.8°F on 2018, while the historical minimum was 44.4°F on 2025.

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 maximum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 47.1°F, with minimum temperature starting at 45.6°F, while the maximum might reach 47.9°F.

Daily water temperature in Härnösand

Date	Current Year actual* / forecast**	last year	10 years average
May 17	42.6°F	42.2°F	41.7°F
May 18	43.1°F	41.8°F	41.8°F
May 19	42.7°F	42.0°F	42.1°F
May 20	43.5°F	43.7°F	42.7°F
May 21	44.7°F	42.9°F	42.9°F
May 22	45.2°F	42.5°F	43.4°F
May 23	46.5°F	42.7°F	44.2°F
May 24	47.3°F	41.8°F	44.6°F
May 25	46.2°F	42.0°F	44.8°F
May 26	46.2°F	43.8°F	45.5°F
May 27	45.9°F	42.4°F	45.7°F
May 28	45.6°F	42.7°F	45.8°F
May 29	46.0°F	44.1°F	46.3°F
May 30	45.1°F	43.9°F	46.7°F
May 31	45.7°F	44.4°F	47.3°F
Jun 1	45.6°F	44.3°F	47.2°F
Jun 2	46.5°F	45.3°F	48.1°F
Jun 3	47.2°F	46.2°F	48.8°F
Jun 4	47.6°F	46.0°F	49.2°F
Jun 5	47.4°F	46.1°F	49.0°F
Jun 6	47.9°F	46.6°F	49.5°F
Jun 7	47.8°F	46.6°F	49.4°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 Härnösand by month

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

The warmest water in Härnösand was recorded on July 20, 2018, reaching a 70.2°F. While the coldest temperature occurred on January 24, 2016, dipping to 32.0°F. The average readings by season are 35.1°F in Winter, 36.8°F in Spring, 57.8°F in Summer, and 48.6°F in Autumn.