What is the current water temperature in Ruhnu?

Q: What is the current water temperature in Ruhnu?

As of now, in Ruhnu, the water temperature is -0.07°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.

Estonia > Ruhnu

Water temperature in Ruhnu

Detailed information about the current water temperature in Ruhnu. 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.

31.9

°F

February 27, 03:25

Trend:

decreasing

Yesterday:

32.0°F

Tomorrow:

31.7°F

Sunrise:

07:28

Sunset:

17:53

Day Length:

10 h. 25 min.

Ruhnu in March

Minimum:

37.1°F

Average:

39.4°F

Maximum:

41.5°F

Sea water temperature in Ruhnu today

As of now, in Ruhnu, the water temperature is 31.9°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 2.3°F lower 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 slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 37.8°F on 2020, while the historical minimum was 32.3°F on 2018.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 31.2°F, the minimum temperature may reach 30.7°F, and the maximum might stay at 32.0°F.

Daily water temperature in Ruhnu

Date	Current Year actual* / forecast**	last year	10 years average
Feb 13	32.3°F	35.8°F	34.3°F
Feb 14	32.4°F	35.9°F	34.5°F
Feb 15	32.3°F	35.7°F	34.3°F
Feb 16	32.3°F	36.0°F	34.3°F
Feb 17	32.2°F	36.1°F	34.2°F
Feb 18	32.1°F	35.5°F	34.4°F
Feb 19	32.0°F	35.8°F	34.0°F
Feb 20	32.0°F	36.0°F	34.0°F
Feb 21	32.0°F	36.2°F	33.8°F
Feb 22	32.0°F	37.0°F	34.1°F
Feb 23	32.0°F	35.4°F	33.7°F
Feb 24	32.0°F	34.8°F	33.9°F
Feb 25	32.0°F	35.6°F	33.8°F
Feb 26	32.0°F	35.8°F	34.3°F
Feb 27	31.9°F	35.6°F	34.1°F
Feb 28	31.7°F	35.3°F	34.0°F
Mar 1	31.1°F	34.9°F	33.9°F
Mar 2	31.4°F	34.8°F	34.2°F
Mar 3	31.5°F	35.3°F	34.2°F
Mar 4	31.2°F	32.3°F	33.9°F
Mar 5	30.9°F	32.0°F	33.6°F
Mar 6	30.7°F	32.0°F	33.5°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 Ruhnu by month

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

The warmest water in Ruhnu was recorded on July 17, 2021, reaching a 77.4°F. While the coldest temperature occurred on February 1, 2026, dipping to 32.0°F. The average readings by season are 37.7°F in Winter, 39.6°F in Spring, 63.7°F in Summer, and 54.6°F in Autumn.