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 4.15°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.

39.5

°F

April 25, 08:38

Trend:

stable

Yesterday:

39.5°F

Tomorrow:

40.0°F

Sunrise:

05:52

Sunset:

21:00

Day Length:

15 h. 8 min.

Ruhnu in May

Minimum:

36.9°F

Average:

38.6°F

Maximum:

41.4°F

Sea water temperature in Ruhnu today

As of now, in Ruhnu, the water temperature is 39.5°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature closely matches the previous two weeks' average, indicating a stable 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 43.6°F on 2020, while the historical minimum was 34.9°F on 2018.

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 40.7°F, with minimum temperature starting at 40.0°F, while the maximum might reach 41.5°F.

Daily water temperature in Ruhnu

Date	Current Year actual* / forecast**	last year	10 years average
Apr 11	36.8°F	36.2°F	36.2°F
Apr 12	37.8°F	36.7°F	36.7°F
Apr 13	37.4°F	36.2°F	36.4°F
Apr 14	38.6°F	37.1°F	36.7°F
Apr 15	38.8°F	37.0°F	37.0°F
Apr 16	39.1°F	36.7°F	37.2°F
Apr 17	38.3°F	37.0°F	37.3°F
Apr 18	40.3°F	37.3°F	37.8°F
Apr 19	40.1°F	37.6°F	38.1°F
Apr 20	39.8°F	36.6°F	38.1°F
Apr 21	41.1°F	37.3°F	38.3°F
Apr 22	41.4°F	37.4°F	38.8°F
Apr 23	41.7°F	37.4°F	39.1°F
Apr 24	39.5°F	36.0°F	38.8°F
Apr 25	39.5°F	36.9°F	38.8°F
Apr 26	40.0°F	37.3°F	39.3°F
Apr 27	40.0°F	37.5°F	39.3°F
Apr 28	40.6°F	38.6°F	39.9°F
Apr 29	40.7°F	40.6°F	40.1°F
Apr 30	40.7°F	38.0°F	40.0°F
May 1	41.3°F	41.2°F	40.7°F
May 2	41.5°F	40.9°F	40.8°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, 63.7°F in Summer, and 54.5°F in Autumn.