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

83.4

°F

August 5, 19:16

Trend:

stable

Yesterday:

83.5°F

Tomorrow:

83.7°F

Sunrise:

04:52

Sunset:

18:42

Day Length:

13 h. 50 min.

Tokyo in August

Minimum:

52.4°F

Average:

54.4°F

Maximum:

57.7°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 83.4°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.7°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 slightly varies from the average of the past two weeks. 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 84.9°F on 2023, while the historical minimum was 79.9°F on 2020.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 83.2°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Tokyo

Date Current Year

actual* / forecast**

last year 10 years average
Jul 22 83.1°F 82.5°F 80.0°F
Jul 23 82.1°F 82.5°F 80.1°F
Jul 24 82.5°F 83.4°F 80.2°F
Jul 25 82.5°F 83.8°F 80.7°F
Jul 26 83.6°F 83.6°F 81.1°F
Jul 27 84.4°F 83.2°F 81.2°F
Jul 28 83.0°F 84.3°F 81.3°F
Jul 29 83.2°F 85.1°F 81.4°F
Jul 30 84.8°F 88.2°F 81.9°F
Jul 31 84.0°F 87.3°F 81.9°F
Aug 1 84.5°F 86.6°F 82.4°F
Aug 2 83.6°F 85.0°F 82.2°F
Aug 3 82.6°F 85.6°F 82.5°F
Aug 4 83.5°F 84.8°F 82.7°F
Aug 5 83.4°F 84.2°F 82.7°F
Aug 6 83.7°F 84.7°F 83.0°F
Aug 7 83.5°F 84.3°F 82.8°F
Aug 8 83.4°F 84.0°F 82.8°F
Aug 9 83.5°F 85.1°F 82.8°F
Aug 10 83.0°F 84.6°F 82.3°F
Aug 11 83.0°F 84.6°F 82.3°F
Aug 12 82.6°F 84.2°F 82.0°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 104 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 55.0°F in Winter, 60.2°F in Spring, 77.6°F in Summer, and 71.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kawasaki 82.7°F 12mi
Matsudo 82.3°F 13mi
Honchō 82.3°F 17mi
Yokohama 82.2°F 18mi
Chiba 83.5°F 25mi
Ichihara 83.7°F 25mi
Kisarazu 82.2°F 25mi
Kimitsu 81.7°F 25mi
Fujisawa 82.2°F 26mi
Futtsu 81.2°F 27mi

* current water temperature in this city

** straight line distance from Tokyo