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

75.8

°F

September 14, 08:32

Trend:

decreasing

Yesterday:

76.0°F

Tomorrow:

75.3°F

Sunrise:

05:16

Sunset:

17:47

Day Length:

12 h. 31 min.

Sendai in September

Minimum:

47.9°F

Average:

50.7°F

Maximum:

54.2°F

Sea water temperature in Sendai today

As of now, in Sendai, the water temperature is 75.8°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.4°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 81.3°F on 2023, while the historical minimum was 71.0°F on 2015.

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 74.9°F, the minimum temperature may reach 74.3°F, and the maximum might stay at 75.3°F.

Daily water temperature in Sendai

Date Current Year

actual* / forecast**

last year 10 years average
Aug 31 81.4°F 79.9°F 77.5°F
Sep 1 83.3°F 80.2°F 77.5°F
Sep 2 82.5°F 79.6°F 77.3°F
Sep 3 82.9°F 79.2°F 76.9°F
Sep 4 81.2°F 78.5°F 76.3°F
Sep 5 80.4°F 77.5°F 76.2°F
Sep 6 80.3°F 79.8°F 76.6°F
Sep 7 79.5°F 79.1°F 76.5°F
Sep 8 80.3°F 79.3°F 76.6°F
Sep 9 79.4°F 78.6°F 76.3°F
Sep 10 77.2°F 78.3°F 75.9°F
Sep 11 77.0°F 79.8°F 76.0°F
Sep 12 76.5°F 81.1°F 75.9°F
Sep 13 76.0°F 80.3°F 75.6°F
Sep 14 75.8°F 79.3°F 75.4°F
Sep 15 75.3°F 79.4°F 74.9°F
Sep 16 75.1°F 78.8°F 74.7°F
Sep 17 75.1°F 78.2°F 74.8°F
Sep 18 75.2°F 79.1°F 74.8°F
Sep 19 74.8°F 78.7°F 74.4°F
Sep 20 74.6°F 78.0°F 74.3°F
Sep 21 74.3°F 77.3°F 73.9°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 70 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 50.9°F in Winter, 51.9°F in Spring, 73.0°F in Summer, and 68.2°F in Autumn.