All data are in degrees Fahrenheit

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Water temperature in Sendai

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

45.6

°F

March 14, 05:46

Trend:

decreasing

Yesterday:

45.6°F

Tomorrow:

45.6°F

Sunrise:

05:51

Sunset:

17:42

Day Length:

11 h. 51 min.

Sendai in March

Minimum:

49.9°F

Average:

51.8°F

Maximum:

54.7°F

Sea water temperature in Sendai today

As of now, in Sendai, the water temperature is 45.6°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 1.2°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly 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 51.0°F on 2024, while the historical minimum was 44.6°F on 2018.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 45.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Sendai

Date Current Year

actual* / forecast**

last year 10 years average
Feb 28 46.3°F 32.0°F 46.9°F
Mar 1 46.7°F 49.5°F 47.3°F
Mar 2 46.1°F 50.6°F 47.1°F
Mar 3 46.0°F 50.6°F 47.3°F
Mar 4 46.2°F 50.0°F 47.2°F
Mar 5 46.2°F 49.5°F 47.1°F
Mar 6 45.6°F 48.6°F 47.1°F
Mar 7 46.4°F 49.0°F 46.9°F
Mar 8 46.5°F 47.5°F 46.6°F
Mar 9 45.8°F 47.3°F 46.5°F
Mar 10 45.5°F 48.3°F 46.9°F
Mar 11 46.0°F 47.7°F 46.8°F
Mar 12 45.8°F 48.4°F 46.8°F
Mar 13 45.6°F 48.3°F 46.9°F
Mar 14 45.6°F 47.6°F 46.8°F
Mar 15 45.6°F 47.6°F 46.8°F
Mar 16 45.6°F 47.4°F 46.9°F
Mar 17 45.6°F 47.4°F 46.8°F
Mar 18 45.8°F 47.5°F 47.0°F
Mar 19 46.0°F 48.0°F 47.2°F
Mar 20 45.9°F 46.8°F 47.2°F
Mar 21 45.9°F 47.1°F 47.2°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 Sendai by month

In Sendai, the months July through September offer comfortable swimming conditions, which amounts to 73 swimming days.
The warmest water in Sendai was recorded on August 6, 2023, reaching a 84.7°F. While the coldest temperature occurred on February 23, 2018, dipping to 42.6°F. The average readings by season are 51.0°F in Winter, 52.1°F in Spring, 73.2°F in Summer, and 68.6°F in Autumn.