All data are in degrees Fahrenheit

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Water temperature in Mirny

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

49.0

°F

January 1, 21:52

Trend:

decreasing

Yesterday:

50.0°F

Tomorrow:

48.9°F

Sunrise:

08:27

Sunset:

17:16

Day Length:

8 h. 49 min.

Mirny in January

Minimum:

45.8°F

Average:

48.7°F

Maximum:

52.2°F

Sea water temperature in Mirny today

As of now, in Mirny, the water temperature is 49.0°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 0.3°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 fall a bit.

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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 52.2°F on 2023, while the historical minimum was 45.8°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 shows a gradual cooling trend. The average temperature is expected to be 48.4°F, the minimum temperature may reach 48.1°F, and the maximum might stay at 48.9°F.

Daily water temperature in Mirny

Date Current Year

actual* / forecast**

last year 10 years average
Jan 1 49.0°F 49.1°F 48.7°F
Jan 2 48.9°F 49.7°F 48.6°F
Jan 3 48.6°F 49.1°F 48.3°F
Jan 4 48.2°F 48.4°F 47.9°F
Jan 5 48.6°F 49.4°F 48.3°F
Jan 6 48.4°F 49.3°F 48.1°F
Jan 7 48.3°F 48.3°F 48.0°F
Jan 8 48.1°F 48.2°F 47.8°F
Dec 18 53.1°F 51.9°F 50.7°F
Dec 19 53.1°F 52.5°F 50.7°F
Dec 20 52.4°F 51.8°F 50.3°F
Dec 21 51.7°F 50.2°F 49.9°F
Dec 22 51.6°F 50.2°F 49.9°F
Dec 23 51.5°F 50.0°F 49.9°F
Dec 24 52.7°F 49.4°F 50.1°F
Dec 25 52.5°F 47.9°F 49.8°F
Dec 26 51.3°F 48.1°F 49.4°F
Dec 27 50.8°F 48.1°F 49.4°F
Dec 28 50.6°F 48.2°F 49.5°F
Dec 29 50.5°F 48.0°F 49.4°F
Dec 30 50.0°F 48.0°F 49.2°F
Dec 31 50.0°F 47.8°F 48.8°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 Mirny by month

In Mirny, the months July through August offer comfortable swimming conditions, which amounts to 76 swimming days.
The warmest water in Mirny was recorded on July 30, 2025, reaching a 81.2°F. While the coldest temperature occurred on March 6, 2025, dipping to 42.2°F. The average readings by season are 47.8°F in Winter, 52.1°F in Spring, 73.9°F in Summer, and 65.0°F in Autumn.