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

54.3

°F

December 8, 01:34

Trend:

decreasing

Yesterday:

54.4°F

Tomorrow:

54.1°F

Sunrise:

08:14

Sunset:

17:05

Day Length:

8 h. 51 min.

Mirny in December

Minimum:

44.9°F

Average:

47.3°F

Maximum:

50.0°F

Sea water temperature in Mirny today

As of now, in Mirny, the water temperature is 54.3°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 1.7°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 54.1°F on 2024, while the historical minimum was 50.0°F on 2016.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 53.4°F, the minimum temperature may reach 52.8°F, and the maximum might stay at 54.1°F.

Daily water temperature in Mirny

Date Current Year

actual* / forecast**

last year 10 years average
Nov 24 54.1°F 58.8°F 55.3°F
Nov 25 55.9°F 58.3°F 55.3°F
Nov 26 56.6°F 57.3°F 54.9°F
Nov 27 56.6°F 56.7°F 54.6°F
Nov 28 55.7°F 55.9°F 54.2°F
Nov 29 55.3°F 55.7°F 53.8°F
Nov 30 55.7°F 56.3°F 53.9°F
Dec 1 55.4°F 55.5°F 53.8°F
Dec 2 55.0°F 55.2°F 53.8°F
Dec 3 54.8°F 55.0°F 53.5°F
Dec 4 55.5°F 54.6°F 53.4°F
Dec 5 55.2°F 54.5°F 53.2°F
Dec 6 54.9°F 54.4°F 53.1°F
Dec 7 54.4°F 53.7°F 52.6°F
Dec 8 54.3°F 54.1°F 52.6°F
Dec 9 54.1°F 54.6°F 52.4°F
Dec 10 53.8°F 53.9°F 52.0°F
Dec 11 53.5°F 54.4°F 51.7°F
Dec 12 53.2°F 53.8°F 51.4°F
Dec 13 53.2°F 53.5°F 51.4°F
Dec 14 53.3°F 53.1°F 51.5°F
Dec 15 52.8°F 52.6°F 51.1°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 47.7°F in Winter, 52.1°F in Spring, 73.9°F in Summer, and 65.0°F in Autumn.