All data are in degrees Fahrenheit

en

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

53.3

°F

April 5, 05:40

Trend:

stable

Yesterday:

53.5°F

Tomorrow:

53.5°F

Sunrise:

05:23

Sunset:

18:06

Day Length:

12 h. 43 min.

Tokyo in April

Minimum:

51.9°F

Average:

55.3°F

Maximum:

59.2°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 53.3°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 4.3°F lower 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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 61.4°F on 2023, while the historical minimum was 54.3°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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 54.0°F, with minimum temperature starting at 53.5°F, while the maximum might reach 54.6°F.

Daily water temperature in Tokyo

Date Current Year

actual* / forecast**

last year 10 years average
Mar 22 55.1°F 52.7°F 55.9°F
Mar 23 54.6°F 52.6°F 55.9°F
Mar 24 56.3°F 52.1°F 56.3°F
Mar 25 56.3°F 52.5°F 56.2°F
Mar 26 56.0°F 53.0°F 56.3°F
Mar 27 59.1°F 52.8°F 56.2°F
Mar 28 58.9°F 52.8°F 56.6°F
Mar 29 58.5°F 53.3°F 56.7°F
Mar 30 58.3°F 55.4°F 57.3°F
Mar 31 54.2°F 56.0°F 56.8°F
Apr 1 54.6°F 56.0°F 56.7°F
Apr 2 55.1°F 56.6°F 57.1°F
Apr 3 55.8°F 56.8°F 57.3°F
Apr 4 53.5°F 57.1°F 57.8°F
Apr 5 53.3°F 57.3°F 57.6°F
Apr 6 53.5°F 57.5°F 57.8°F
Apr 7 53.7°F 57.5°F 58.0°F
Apr 8 53.8°F 57.6°F 58.1°F
Apr 9 54.1°F 57.7°F 58.4°F
Apr 10 54.2°F 58.4°F 58.6°F
Apr 11 54.4°F 57.7°F 58.7°F
Apr 12 54.6°F 57.8°F 58.9°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 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, 77.4°F in Summer, and 71.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kawasaki 54.5°F 12mi
Matsudo 55.7°F 13mi
Honchō 55.7°F 17mi
Yokohama 56.9°F 18mi
Chiba 57.0°F 25mi
Ichihara 57.2°F 25mi
Kisarazu 56.5°F 25mi
Kimitsu 56.1°F 25mi
Fujisawa 57.9°F 26mi
Futtsu 56.6°F 27mi

* current water temperature in this city

** straight line distance from Tokyo