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 11.21°C. 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.

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.

52.2

°F

January 7, 09:37

Trend:

decreasing

Yesterday:

52.3°F

Tomorrow:

52.0°F

Sunrise:

06:52

Sunset:

16:43

Day Length:

9 h. 51 min.

Tokyo in January

Minimum:

52.2°F

Average:

55.1°F

Maximum:

59.3°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 52.2°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 2.1°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 fall 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 58.0°F on 2016, while the historical minimum was 52.9°F on 2019.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 51.7°F, the minimum temperature may reach 51.4°F, and the maximum might stay at 52.0°F.

Daily water temperature in Tokyo

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	53.8°F	55.5°F	55.1°F
Jan 2	53.8°F	54.3°F	54.8°F
Jan 3	52.8°F	55.2°F	54.5°F
Jan 4	52.8°F	55.0°F	54.8°F
Jan 5	52.2°F	55.0°F	54.1°F
Jan 6	52.3°F	55.0°F	54.4°F
Jan 7	52.2°F	53.7°F	54.3°F
Jan 8	52.0°F	53.6°F	54.1°F
Jan 9	51.8°F	53.9°F	54.0°F
Jan 10	51.9°F	53.0°F	54.0°F
Jan 11	51.6°F	52.4°F	53.7°F
Jan 12	51.4°F	52.5°F	53.6°F
Jan 13	51.4°F	53.5°F	53.5°F
Jan 14	51.7°F	53.4°F	53.8°F
Dec 24	55.1°F	56.0°F	56.6°F
Dec 25	55.7°F	56.1°F	56.5°F
Dec 26	56.0°F	55.7°F	56.4°F
Dec 27	53.6°F	56.2°F	56.0°F
Dec 28	53.6°F	55.9°F	55.5°F
Dec 29	50.5°F	56.1°F	55.1°F
Dec 30	53.0°F	56.4°F	55.1°F
Dec 31	53.2°F	56.0°F	54.8°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, 60.3°F in Spring, 77.9°F in Summer, and 71.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kawasaki	53.5°F	12mi
Matsudo	50.1°F	13mi
Honchō	50.1°F	17mi
Yokohama	55.0°F	18mi
Chiba	52.6°F	25mi
Ichihara	53.2°F	25mi
Kisarazu	54.8°F	25mi
Kimitsu	54.8°F	25mi
Fujisawa	61.6°F	26mi
Futtsu	55.5°F	27mi

* current water temperature in this city

** straight line distance from Tokyo