All data are in degrees Fahrenheit

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Water temperature in Ostrovnoy

Detailed information about the current water temperature in Ostrovnoy. 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 Ostrovnoy now

42.3

°F

June 9, 22:51

Trend:

increasing

Yesterday:

40.0°F

Tomorrow:

42.7°F

Sunrise:

-

Sunset:

-

Day Length:

-

Ostrovnoy in June

Minimum:

34.8°F

Average:

36.5°F

Maximum:

37.5°F

Sea water temperature in Ostrovnoy today

As of now, in Ostrovnoy, the water temperature is 42.3°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 2.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 41.0°F on 2025, while the historical minimum was 38.1°F on 2017.

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 43.8°F, with minimum temperature starting at 42.7°F, while the maximum might reach 44.5°F.

Daily water temperature in Ostrovnoy

Date Current Year

actual* / forecast**

last year 10 years average
May 26 39.6°F 37.8°F 37.7°F
May 27 39.1°F 38.8°F 38.0°F
May 28 39.0°F 39.1°F 38.1°F
May 29 38.2°F 39.0°F 38.3°F
May 30 38.0°F 39.3°F 38.4°F
May 31 38.3°F 39.0°F 38.6°F
Jun 1 38.8°F 38.9°F 38.6°F
Jun 2 38.6°F 38.8°F 38.4°F
Jun 3 39.2°F 40.4°F 38.8°F
Jun 4 39.9°F 40.1°F 39.1°F
Jun 5 39.7°F 39.8°F 39.0°F
Jun 6 40.6°F 41.3°F 39.2°F
Jun 7 40.6°F 40.9°F 39.2°F
Jun 8 40.0°F 40.7°F 39.5°F
Jun 9 42.3°F 41.0°F 39.7°F
Jun 10 42.7°F 41.3°F 40.1°F
Jun 11 43.3°F 41.4°F 40.7°F
Jun 12 43.6°F 41.2°F 41.0°F
Jun 13 43.8°F 41.4°F 41.3°F
Jun 14 44.3°F 41.4°F 41.7°F
Jun 15 44.3°F 41.5°F 41.7°F
Jun 16 44.5°F 41.2°F 41.9°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 Ostrovnoy by month

In an average year, Ostrovnoy offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Ostrovnoy was recorded on August 21, 2022, reaching a 55.4°F. While the coldest temperature occurred on February 8, 2024, dipping to 32.0°F. The average readings by season are 35.9°F in Winter, 34.1°F in Spring, 45.1°F in Summer, and 45.3°F in Autumn.