All data are in degrees Fahrenheit

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Water temperature in Niigata

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

59.0

°F

December 14, 11:41

Trend:

decreasing

Yesterday:

59.3°F

Tomorrow:

58.6°F

Sunrise:

06:51

Sunset:

16:25

Day Length:

9 h. 34 min.

Niigata in December

Minimum:

53.3°F

Average:

54.6°F

Maximum:

55.7°F

Sea water temperature in Niigata today

As of now, in Niigata, the water temperature is 59.0°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 0.7°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 60.7°F on 2018, while the historical minimum was 58.6°F on 2017.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 58.0°F, the minimum temperature may reach 57.5°F, and the maximum might stay at 58.6°F.

Daily water temperature in Niigata

Date Current Year

actual* / forecast**

last year 10 years average
Nov 30 62.0°F 62.3°F 62.1°F
Dec 1 61.9°F 62.1°F 62.0°F
Dec 2 61.8°F 61.9°F 61.8°F
Dec 3 61.6°F 61.2°F 61.5°F
Dec 4 61.5°F 61.2°F 61.4°F
Dec 5 61.3°F 61.0°F 61.2°F
Dec 6 61.4°F 61.5°F 60.9°F
Dec 7 60.6°F 61.4°F 60.8°F
Dec 8 60.3°F 61.1°F 60.6°F
Dec 9 60.4°F 61.0°F 60.4°F
Dec 10 60.5°F 60.9°F 60.5°F
Dec 11 59.2°F 60.7°F 60.3°F
Dec 12 59.3°F 60.5°F 60.2°F
Dec 13 59.3°F 60.3°F 60.0°F
Dec 14 59.0°F 59.8°F 59.7°F
Dec 15 58.6°F 57.7°F 59.4°F
Dec 16 58.4°F 57.5°F 59.1°F
Dec 17 58.2°F 57.3°F 58.9°F
Dec 18 57.9°F 57.2°F 58.7°F
Dec 19 57.7°F 57.1°F 58.5°F
Dec 20 57.5°F 57.2°F 58.2°F
Dec 21 57.5°F 58.0°F 58.2°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 Niigata by month

In Niigata, the months July through September offer comfortable swimming conditions, which amounts to 97 swimming days.
The warmest water in Niigata was recorded on August 6, 2023, reaching a 86.6°F. While the coldest temperature occurred on March 3, 2022, dipping to 47.5°F. The average readings by season are 54.6°F in Winter, 53.7°F in Spring, 75.3°F in Summer, and 71.8°F in Autumn.