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 21.07°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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.

69.9

°F

June 16, 19:56

Trend:

stable

Yesterday:

70.8°F

Tomorrow:

70.3°F

Sunrise:

04:25

Sunset:

18:59

Day Length:

14 h. 34 min.

Tokyo in June

Minimum:

51.4°F

Average:

54.2°F

Maximum:

59.1°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 69.9°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.3°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 75.1°F on 2020, while the historical minimum was 70.0°F on 2022.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 70.6°F, with minimum temperature starting at 70.3°F, while the maximum might reach 70.9°F.

Daily water temperature in Tokyo

Date	Current Year actual* / forecast**	last year	10 years average
Jun 2	71.8°F	69.5°F	69.7°F
Jun 3	71.7°F	69.5°F	70.1°F
Jun 4	71.5°F	69.5°F	70.1°F
Jun 5	71.3°F	70.8°F	70.4°F
Jun 6	70.8°F	70.4°F	70.6°F
Jun 7	71.0°F	70.6°F	70.7°F
Jun 8	71.3°F	70.7°F	70.9°F
Jun 9	70.7°F	70.6°F	70.9°F
Jun 10	71.2°F	70.4°F	71.0°F
Jun 11	71.6°F	70.2°F	71.1°F
Jun 12	71.3°F	70.1°F	71.4°F
Jun 13	71.1°F	70.5°F	71.3°F
Jun 14	71.4°F	70.4°F	71.1°F
Jun 15	70.8°F	70.5°F	71.3°F
Jun 16	69.9°F	73.2°F	72.2°F
Jun 17	70.3°F	75.4°F	72.6°F
Jun 18	70.7°F	77.5°F	73.1°F
Jun 19	70.8°F	79.3°F	73.1°F
Jun 20	70.7°F	79.1°F	73.1°F
Jun 21	70.9°F	78.5°F	73.2°F
Jun 22	70.5°F	77.2°F	72.8°F
Jun 23	70.6°F	77.0°F	72.9°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 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, 60.5°F in Spring, 77.9°F in Summer, and 71.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kawasaki	70.1°F	12mi
Matsudo	71.3°F	13mi
Honchō	71.3°F	17mi
Yokohama	70.2°F	18mi
Chiba	70.1°F	25mi
Ichihara	70.1°F	25mi
Kisarazu	71.0°F	25mi
Kimitsu	70.9°F	25mi
Fujisawa	72.6°F	26mi
Futtsu	70.9°F	27mi

* current water temperature in this city

** straight line distance from Tokyo