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 2.72°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.

36.9

°F

January 16, 19:57

Trend:

stable

Yesterday:

37.1°F

Tomorrow:

36.9°F

Sunrise:

08:59

Sunset:

16:16

Day Length:

7 h. 17 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 36.9°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 about the same as 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 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 39.3°F on 2020, while the historical minimum was 34.5°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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 36.5°F, the minimum temperature may reach 36.2°F, and the maximum might stay at 37.0°F.

Daily water temperature in Ruhnu

Date	Current Year actual* / forecast**	last year	10 years average
Jan 2	41.0°F	40.3°F	39.3°F
Jan 3	40.7°F	40.0°F	39.4°F
Jan 4	40.6°F	39.5°F	39.1°F
Jan 5	40.2°F	39.8°F	38.8°F
Jan 6	40.0°F	39.0°F	38.6°F
Jan 7	39.4°F	38.8°F	38.5°F
Jan 8	39.3°F	39.0°F	38.2°F
Jan 9	38.9°F	39.1°F	38.0°F
Jan 10	38.0°F	39.2°F	37.9°F
Jan 11	37.8°F	38.9°F	37.7°F
Jan 12	37.7°F	38.7°F	37.8°F
Jan 13	37.4°F	38.5°F	37.3°F
Jan 14	37.0°F	38.8°F	37.1°F
Jan 15	37.1°F	38.9°F	37.2°F
Jan 16	36.9°F	38.6°F	37.0°F
Jan 17	36.9°F	37.4°F	37.0°F
Jan 18	37.0°F	38.6°F	37.1°F
Jan 19	36.4°F	38.3°F	36.5°F
Jan 20	36.5°F	39.0°F	36.6°F
Jan 21	36.4°F	38.6°F	36.5°F
Jan 22	36.3°F	38.3°F	36.4°F
Jan 23	36.2°F	37.9°F	36.3°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.