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 6.13°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.

43.0

°F

December 26, 17:07

Trend:

increasing

Yesterday:

42.2°F

Tomorrow:

43.4°F

Sunrise:

09:12

Sunset:

15:43

Day Length:

6 h. 31 min.

Ruhnu in January

Minimum:

37.4°F

Average:

39.1°F

Maximum:

41.5°F

Sea water temperature in Ruhnu today

As of now, in Ruhnu, the water temperature is 43.0°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 3.4°F higher 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 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 42.9°F on 2015, while the historical minimum was 37.2°F on 2024.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 42.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Ruhnu

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	42.5°F	39.0°F	39.1°F
Jan 2	42.4°F	40.3°F	39.0°F
Dec 12	43.5°F	42.4°F	42.2°F
Dec 13	43.4°F	42.7°F	41.9°F
Dec 14	43.0°F	42.9°F	41.8°F
Dec 15	42.6°F	42.6°F	41.6°F
Dec 16	42.1°F	42.1°F	41.2°F
Dec 17	41.9°F	42.0°F	41.1°F
Dec 18	41.6°F	41.9°F	40.9°F
Dec 19	39.5°F	41.6°F	40.6°F
Dec 20	39.2°F	41.8°F	40.6°F
Dec 21	41.7°F	41.8°F	40.3°F
Dec 22	42.6°F	41.7°F	40.5°F
Dec 23	42.5°F	41.0°F	40.6°F
Dec 24	42.5°F	40.9°F	40.6°F
Dec 25	42.2°F	41.1°F	40.5°F
Dec 26	43.0°F	37.2°F	39.6°F
Dec 27	43.4°F	38.4°F	40.0°F
Dec 28	43.3°F	39.9°F	39.9°F
Dec 29	43.0°F	39.3°F	39.6°F
Dec 30	42.7°F	37.4°F	39.3°F
Dec 31	43.0°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, 39.5°F in Spring, 63.4°F in Summer, and 54.6°F in Autumn.