What is the current water temperature in Tokyo?

Q: What is the current water temperature in Tokyo?

As of now, in Tokyo, the water temperature is 17.79°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Japan > Tokyo

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.

64.0

°F

April 28, 14:16

Trend:

increasing

Yesterday:

63.9°F

Tomorrow:

64.1°F

Sunrise:

04:54

Sunset:

18:25

Day Length:

13 h. 31 min.

Tokyo in May

Minimum:

50.8°F

Average:

54.1°F

Maximum:

59.4°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 64.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature slightly varies from the average of the past two weeks. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 63.9°F on 2024, while the historical minimum was 59.9°F on 2017.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 65.2°F, with minimum temperature starting at 64.1°F, while the maximum might reach 66.4°F.

Daily water temperature in Tokyo

Date	Current Year actual* / forecast**	last year	10 years average
Apr 14	62.2°F	61.1°F	59.3°F
Apr 15	63.1°F	59.7°F	59.6°F
Apr 16	63.3°F	61.6°F	60.1°F
Apr 17	62.3°F	59.8°F	60.0°F
Apr 18	63.1°F	60.1°F	60.3°F
Apr 19	63.8°F	62.2°F	60.8°F
Apr 20	63.8°F	62.3°F	61.1°F
Apr 21	65.1°F	62.5°F	61.8°F
Apr 22	65.4°F	62.5°F	62.0°F
Apr 23	65.7°F	62.4°F	62.2°F
Apr 24	64.9°F	62.2°F	62.0°F
Apr 25	65.2°F	62.1°F	62.2°F
Apr 26	63.6°F	62.1°F	62.4°F
Apr 27	63.9°F	62.1°F	62.3°F
Apr 28	64.0°F	63.8°F	62.4°F
Apr 29	64.1°F	62.2°F	62.5°F
Apr 30	64.2°F	62.4°F	62.6°F
May 1	64.8°F	63.1°F	63.2°F
May 2	65.0°F	63.3°F	63.4°F
May 3	65.6°F	64.0°F	64.0°F
May 4	66.2°F	65.6°F	64.6°F
May 5	66.4°F	64.8°F	64.8°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, 60.4°F in Spring, 77.9°F in Summer, and 71.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kawasaki	64.8°F	12mi
Matsudo	63.9°F	13mi
Honchō	63.9°F	17mi
Yokohama	65.8°F	18mi
Chiba	63.8°F	25mi
Ichihara	63.5°F	25mi
Kisarazu	63.8°F	25mi
Kimitsu	64.0°F	25mi
Fujisawa	65.0°F	26mi
Futtsu	64.2°F	27mi

* current water temperature in this city

** straight line distance from Tokyo