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

70.3

°F

September 19, 01:34

Trend:

stable

Yesterday:

70.2°F

Tomorrow:

69.9°F

Sunrise:

06:31

Sunset:

18:52

Day Length:

12 h. 21 min.

Mirny in September

Minimum:

44.8°F

Average:

47.5°F

Maximum:

49.6°F

Sea water temperature in Mirny today

As of now, in Mirny, the water temperature is 70.3°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.6°F lower 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 minimum temperature for this date. The maximum temperature recorded for this date was 74.8°F on 2024, while the historical minimum was 70.1°F on 2019.

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 68.9°F, the minimum temperature may reach 68.0°F, and the maximum might stay at 69.9°F.

Daily water temperature in Mirny

Date Current Year

actual* / forecast**

last year 10 years average
Sep 5 74.6°F 76.2°F 75.2°F
Sep 6 74.9°F 76.9°F 75.1°F
Sep 7 75.0°F 77.0°F 74.7°F
Sep 8 74.4°F 75.3°F 74.5°F
Sep 9 73.7°F 75.4°F 74.2°F
Sep 10 73.8°F 74.8°F 73.9°F
Sep 11 72.8°F 74.4°F 73.5°F
Sep 12 72.6°F 75.5°F 73.4°F
Sep 13 72.4°F 76.0°F 73.3°F
Sep 14 71.7°F 76.5°F 73.1°F
Sep 15 70.8°F 76.7°F 73.0°F
Sep 16 71.1°F 76.3°F 73.0°F
Sep 17 70.1°F 76.0°F 72.8°F
Sep 18 70.2°F 75.2°F 72.8°F
Sep 19 70.3°F 74.8°F 72.8°F
Sep 20 69.9°F 73.9°F 72.5°F
Sep 21 69.7°F 73.4°F 72.2°F
Sep 22 69.2°F 72.3°F 71.7°F
Sep 23 68.9°F 72.6°F 71.5°F
Sep 24 68.5°F 72.5°F 71.1°F
Sep 25 68.5°F 72.4°F 71.0°F
Sep 26 68.0°F 72.3°F 70.6°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 65.1°F in Autumn.