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

55.3

°F

March 7, 17:50

Trend:

stable

Yesterday:

52.5°F

Tomorrow:

55.1°F

Sunrise:

06:04

Sunset:

17:41

Day Length:

11 h. 37 min.

Tokyo in March

Minimum:

51.6°F

Average:

54.5°F

Maximum:

58.9°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 55.3°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 1.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 57.4°F on 2016, while the historical minimum was 51.1°F on 2018.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 55.5°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
Feb 21 60.3°F 52.0°F 53.1°F
Feb 22 60.4°F 54.4°F 53.0°F
Feb 23 57.8°F 55.1°F 53.0°F
Feb 24 53.2°F 53.8°F 52.1°F
Feb 25 53.1°F 53.7°F 52.1°F
Feb 26 53.3°F 54.5°F 52.4°F
Feb 27 53.5°F 55.0°F 52.4°F
Feb 28 53.4°F 54.4°F 52.1°F
Mar 1 52.2°F 51.7°F 52.2°F
Mar 2 52.6°F 52.8°F 52.4°F
Mar 3 54.4°F 53.1°F 52.8°F
Mar 4 56.9°F 53.5°F 53.1°F
Mar 5 55.1°F 54.1°F 53.4°F
Mar 6 52.5°F 54.5°F 53.3°F
Mar 7 55.3°F 51.9°F 53.5°F
Mar 8 55.1°F 52.1°F 53.3°F
Mar 9 55.3°F 52.5°F 53.5°F
Mar 10 55.4°F 52.9°F 53.5°F
Mar 11 55.4°F 53.2°F 53.6°F
Mar 12 55.2°F 53.5°F 53.4°F
Mar 13 55.9°F 53.8°F 54.0°F
Mar 14 55.9°F 54.2°F 54.1°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 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, 60.3°F in Spring, 77.9°F in Summer, and 71.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kawasaki 55.9°F 12mi
Matsudo 54.0°F 13mi
Honchō 54.0°F 17mi
Yokohama 56.6°F 18mi
Chiba 55.0°F 25mi
Ichihara 55.6°F 25mi
Kisarazu 58.4°F 25mi
Kimitsu 58.7°F 25mi
Fujisawa 60.0°F 26mi
Futtsu 59.1°F 27mi

* current water temperature in this city

** straight line distance from Tokyo