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 4.99°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.

41.0

°F

January 2, 18:38

Trend:

stable

Yesterday:

41.8°F

Tomorrow:

41.1°F

Sunrise:

09:11

Sunset:

15:52

Day Length:

6 h. 41 min.

Ruhnu in January

Minimum:

37.4°F

Average:

39.5°F

Maximum:

41.8°F

Sea water temperature in Ruhnu today

As of now, in Ruhnu, the water temperature is 41.0°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 1.8°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 stay about the same.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 40.9°F on 2016, while the historical minimum was 37.2°F on 2022.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest 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 40.3°F, the minimum temperature may reach 39.7°F, and the maximum might stay at 41.1°F.

Daily water temperature in Ruhnu

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	41.8°F	39.0°F	39.5°F
Jan 2	41.0°F	40.3°F	39.2°F
Jan 3	41.1°F	40.0°F	39.3°F
Jan 4	40.8°F	39.5°F	39.0°F
Jan 5	40.5°F	39.8°F	38.7°F
Jan 6	40.3°F	39.0°F	38.5°F
Jan 7	40.2°F	38.8°F	38.4°F
Jan 8	39.9°F	39.0°F	38.1°F
Jan 9	39.7°F	39.1°F	37.9°F
Dec 19	39.5°F	41.6°F	40.4°F
Dec 20	39.2°F	41.8°F	40.7°F
Dec 21	41.7°F	41.8°F	40.4°F
Dec 22	42.6°F	41.7°F	40.3°F
Dec 23	42.5°F	41.0°F	40.3°F
Dec 24	42.5°F	40.9°F	40.2°F
Dec 25	42.2°F	41.1°F	40.3°F
Dec 26	43.0°F	37.2°F	39.7°F
Dec 27	43.1°F	38.4°F	40.1°F
Dec 28	42.7°F	39.9°F	40.0°F
Dec 29	42.5°F	39.3°F	39.7°F
Dec 30	42.2°F	37.4°F	39.4°F
Dec 31	42.0°F	39.2°F	39.6°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 37.8°F in Winter, 39.6°F in Spring, 63.7°F in Summer, and 54.6°F in Autumn.