All data are in degrees Fahrenheit

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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.
Sea temperature in Ruhnu now

51.2

°F

October 31, 12:36

Trend:

decreasing

Yesterday:

51.7°F

Tomorrow:

50.8°F

Sunrise:

07:37

Sunset:

16:43

Day Length:

9 h. 6 min.

Ruhnu in November

Minimum:

36.2°F

Average:

37.6°F

Maximum:

40.2°F

Sea water temperature in Ruhnu today

As of now, in Ruhnu, the water temperature is 51.2°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 0.7°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

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 52.5°F on 2024, while the historical minimum was 47.8°F on 2016.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 50.3°F, the minimum temperature may reach 49.6°F, and the maximum might stay at 50.8°F.

Daily water temperature in Ruhnu

Date Current Year

actual* / forecast**

last year 10 years average
Oct 17 53.8°F 56.6°F 53.5°F
Oct 18 54.2°F 56.2°F 53.5°F
Oct 19 54.3°F 55.8°F 53.4°F
Oct 20 53.6°F 55.6°F 53.2°F
Oct 21 53.4°F 54.4°F 52.8°F
Oct 22 52.8°F 53.5°F 52.5°F
Oct 23 52.5°F 54.1°F 52.3°F
Oct 24 52.2°F 53.2°F 52.0°F
Oct 25 51.8°F 53.9°F 51.9°F
Oct 26 51.5°F 53.7°F 51.6°F
Oct 27 52.1°F 53.5°F 51.3°F
Oct 28 52.1°F 53.5°F 51.1°F
Oct 29 52.2°F 53.2°F 50.9°F
Oct 30 51.7°F 52.1°F 50.8°F
Oct 31 51.2°F 52.5°F 50.5°F
Nov 1 50.8°F 51.8°F 50.1°F
Nov 2 50.8°F 52.0°F 50.0°F
Nov 3 50.6°F 51.0°F 49.9°F
Nov 4 50.5°F 51.2°F 49.7°F
Nov 5 50.2°F 49.7°F 49.5°F
Nov 6 49.9°F 49.6°F 49.2°F
Nov 7 49.6°F 48.8°F 48.9°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 20, 2021, dipping to 32.0°F. The average readings by season are 37.7°F in Winter, 39.5°F in Spring, 63.4°F in Summer, and 54.6°F in Autumn.