All data are in degrees Fahrenheit

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Water temperature in Tokyo

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

72.0

°F

June 2, 18:45

Trend:

increasing

Yesterday:

71.9°F

Tomorrow:

72.3°F

Sunrise:

04:27

Sunset:

18:52

Day Length:

14 h. 25 min.

Tokyo in June

Minimum:

51.4°F

Average:

54.2°F

Maximum:

59.1°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 72.0°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.3°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 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 70.9°F on 2022, while the historical minimum was 68.2°F on 2023.

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 suggests a gradual increase. The average temperature is expected to rise up to 72.8°F, with minimum temperature starting at 72.3°F, while the maximum might reach 73.3°F.

Daily water temperature in Tokyo

Date Current Year

actual* / forecast**

last year 10 years average
May 19 70.1°F 69.0°F 67.8°F
May 20 70.4°F 68.1°F 67.8°F
May 21 69.1°F 67.8°F 67.9°F
May 22 69.2°F 67.7°F 68.1°F
May 23 69.0°F 67.7°F 68.3°F
May 24 68.5°F 67.8°F 68.4°F
May 25 69.6°F 67.8°F 68.8°F
May 26 67.8°F 67.8°F 68.6°F
May 27 68.6°F 66.8°F 68.6°F
May 28 72.4°F 69.2°F 69.3°F
May 29 72.0°F 69.4°F 69.8°F
May 30 71.2°F 69.3°F 69.8°F
May 31 70.8°F 69.4°F 69.8°F
Jun 1 71.9°F 69.2°F 69.6°F
Jun 2 72.0°F 69.5°F 69.7°F
Jun 3 72.3°F 69.5°F 69.9°F
Jun 4 72.3°F 69.5°F 70.0°F
Jun 5 72.7°F 70.8°F 70.3°F
Jun 6 72.9°F 70.4°F 70.6°F
Jun 7 73.0°F 70.6°F 70.7°F
Jun 8 73.2°F 70.7°F 70.9°F
Jun 9 73.3°F 70.6°F 70.9°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 Tokyo by month

In Tokyo, the months July through September offer comfortable swimming conditions, which amounts to 105 swimming days.
The warmest water in Tokyo was recorded on July 30, 2024, reaching a 88.2°F. While the coldest temperature occurred on February 15, 2022, dipping to 47.3°F. The average readings by season are 54.7°F in Winter, 60.5°F in Spring, 77.9°F in Summer, and 71.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kawasaki 72.0°F 12mi
Matsudo 73.0°F 13mi
Honchō 73.0°F 17mi
Yokohama 71.3°F 18mi
Chiba 73.0°F 25mi
Ichihara 73.1°F 25mi
Kisarazu 72.5°F 25mi
Kimitsu 71.7°F 25mi
Fujisawa 71.5°F 26mi
Futtsu 70.6°F 27mi

* current water temperature in this city

** straight line distance from Tokyo