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 17.49°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.

63.5

°F

April 19, 04:58

Trend:

increasing

Yesterday:

63.1°F

Tomorrow:

63.9°F

Sunrise:

05:04

Sunset:

18:17

Day Length:

13 h. 13 min.

Tokyo in April

Minimum:

51.9°F

Average:

54.8°F

Maximum:

59.2°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 63.5°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 3.0°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 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 62.6°F on 2021, while the historical minimum was 58.0°F on 2019.

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 64.7°F, with minimum temperature starting at 63.9°F, while the maximum might reach 65.3°F.

Daily water temperature in Tokyo

Date	Current Year actual* / forecast**	last year	10 years average
Apr 5	57.9°F	53.4°F	57.3°F
Apr 6	60.2°F	53.9°F	57.8°F
Apr 7	61.2°F	55.6°F	58.2°F
Apr 8	59.3°F	55.2°F	58.0°F
Apr 9	57.2°F	56.8°F	58.3°F
Apr 10	60.2°F	57.2°F	58.7°F
Apr 11	61.4°F	57.4°F	58.9°F
Apr 12	61.6°F	58.4°F	59.2°F
Apr 13	62.3°F	58.5°F	59.1°F
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	60.1°F
Apr 19	63.5°F	62.2°F	60.5°F
Apr 20	63.9°F	62.3°F	60.9°F
Apr 21	64.5°F	62.5°F	61.5°F
Apr 22	64.7°F	62.5°F	61.7°F
Apr 23	64.8°F	62.4°F	61.8°F
Apr 24	64.8°F	62.2°F	61.8°F
Apr 25	64.9°F	62.1°F	61.8°F
Apr 26	65.3°F	62.1°F	62.3°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	63.4°F	12mi
Matsudo	61.2°F	13mi
Honchō	61.2°F	17mi
Yokohama	62.7°F	18mi
Chiba	58.9°F	25mi
Ichihara	59.1°F	25mi
Kisarazu	61.8°F	25mi
Kimitsu	61.4°F	25mi
Fujisawa	63.5°F	26mi
Futtsu	60.9°F	27mi

* current water temperature in this city

** straight line distance from Tokyo