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

51.9

°F

April 19, 11:26

Trend:

increasing

Yesterday:

51.3°F

Tomorrow:

52.0°F

Sunrise:

04:57

Sunset:

18:16

Day Length:

13 h. 19 min.

Sendai in April

Minimum:

49.5°F

Average:

51.5°F

Maximum:

54.6°F

Sea water temperature in Sendai today

As of now, in Sendai, the water temperature is 51.9°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 0.6°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 60.2°F on 2024, while the historical minimum was 49.9°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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 52.1°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
Apr 5 47.0°F 53.5°F 48.9°F
Apr 6 47.3°F 53.5°F 49.1°F
Apr 7 47.8°F 53.8°F 49.4°F
Apr 8 47.5°F 53.5°F 49.4°F
Apr 9 49.8°F 53.7°F 49.7°F
Apr 10 48.5°F 54.5°F 49.7°F
Apr 11 49.1°F 53.5°F 49.7°F
Apr 12 50.4°F 53.8°F 50.0°F
Apr 13 50.5°F 55.8°F 50.2°F
Apr 14 51.3°F 55.8°F 51.2°F
Apr 15 51.8°F 56.7°F 51.5°F
Apr 16 51.4°F 57.8°F 51.5°F
Apr 17 50.4°F 60.1°F 51.8°F
Apr 18 51.3°F 57.3°F 51.9°F
Apr 19 51.9°F 60.2°F 52.5°F
Apr 20 52.0°F 59.6°F 52.7°F
Apr 21 51.9°F 59.5°F 52.5°F
Apr 22 51.9°F 59.0°F 52.6°F
Apr 23 52.1°F 60.7°F 52.8°F
Apr 24 52.2°F 60.1°F 52.8°F
Apr 25 52.3°F 60.2°F 52.9°F
Apr 26 52.5°F 58.7°F 53.1°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 Sendai by month

In Sendai, the months July through September offer comfortable swimming conditions, which amounts to 67 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, 72.8°F in Summer, and 68.2°F in Autumn.