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

57.9

°F

May 14, 22:56

Trend:

increasing

Yesterday:

57.5°F

Tomorrow:

58.6°F

Sunrise:

04:27

Sunset:

18:39

Day Length:

14 h. 12 min.

Sendai in May

Minimum:

48.7°F

Average:

50.9°F

Maximum:

54.1°F

Sea water temperature in Sendai today

As of now, in Sendai, the water temperature is 57.9°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 1.6°F higher 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 59.1°F on 2018, while the historical minimum was 52.3°F on 2017.

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 suggests a gradual increase. The average temperature is expected to rise up to 59.9°F, with minimum temperature starting at 58.6°F, while the maximum might reach 61.1°F.

Daily water temperature in Sendai

Date Current Year

actual* / forecast**

last year 10 years average
Apr 30 53.2°F 54.4°F 53.6°F
May 1 54.6°F 53.6°F 53.8°F
May 2 54.3°F 53.7°F 54.2°F
May 3 53.5°F 53.9°F 54.2°F
May 4 55.3°F 53.7°F 54.6°F
May 5 52.7°F 54.1°F 54.8°F
May 6 54.2°F 54.0°F 55.2°F
May 7 54.0°F 55.3°F 55.3°F
May 8 54.7°F 54.1°F 55.6°F
May 9 55.7°F 54.8°F 56.0°F
May 10 53.8°F 54.2°F 55.4°F
May 11 54.3°F 54.4°F 55.5°F
May 12 54.8°F 54.0°F 55.2°F
May 13 57.5°F 55.0°F 56.1°F
May 14 57.9°F 55.9°F 56.3°F
May 15 58.6°F 57.9°F 57.1°F
May 16 59.2°F 57.6°F 57.6°F
May 17 59.5°F 57.6°F 57.9°F
May 18 60.1°F 57.5°F 58.5°F
May 19 60.7°F 59.3°F 59.1°F
May 20 60.4°F 57.9°F 58.8°F
May 21 61.1°F 58.7°F 59.5°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, 52.0°F in Spring, 73.2°F in Summer, and 68.6°F in Autumn.