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 9.77°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.

49.6

°F

February 7, 14:30

Trend:

stable

Yesterday:

49.9°F

Tomorrow:

49.9°F

Sunrise:

06:37

Sunset:

17:14

Day Length:

10 h. 37 min.

Tokyo in February

Minimum:

52.1°F

Average:

54.8°F

Maximum:

59.1°F

Sea water temperature in Tokyo today

As of now, in Tokyo, the water temperature is 49.6°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 2.7°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 slightly varies from the average of the past two weeks. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 55.9°F on 2016, while the historical minimum was 48.5°F on 2022.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 49.8°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
Jan 24	50.7°F	48.7°F	52.6°F
Jan 25	50.9°F	49.4°F	51.9°F
Jan 26	50.1°F	52.0°F	52.0°F
Jan 27	50.0°F	51.4°F	52.0°F
Jan 28	49.4°F	52.3°F	52.1°F
Jan 29	49.3°F	52.3°F	52.1°F
Jan 30	48.8°F	52.2°F	51.8°F
Jan 31	49.3°F	51.2°F	52.0°F
Feb 1	49.3°F	50.8°F	51.5°F
Feb 2	49.4°F	51.2°F	51.8°F
Feb 3	49.7°F	51.9°F	52.0°F
Feb 4	49.0°F	50.5°F	52.0°F
Feb 5	50.5°F	50.7°F	52.3°F
Feb 6	49.9°F	51.0°F	52.6°F
Feb 7	49.6°F	51.0°F	52.3°F
Feb 8	49.9°F	50.7°F	52.6°F
Feb 9	50.2°F	50.1°F	52.9°F
Feb 10	50.2°F	49.7°F	52.9°F
Feb 11	50.0°F	49.9°F	52.7°F
Feb 12	49.7°F	49.7°F	52.5°F
Feb 13	49.6°F	50.5°F	52.3°F
Feb 14	49.2°F	50.5°F	51.9°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 54.6°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	50.6°F	12mi
Matsudo	48.9°F	13mi
Honchō	48.9°F	17mi
Yokohama	53.4°F	18mi
Chiba	50.3°F	25mi
Ichihara	50.5°F	25mi
Kisarazu	55.4°F	25mi
Kimitsu	56.0°F	25mi
Fujisawa	59.8°F	26mi
Futtsu	57.9°F	27mi

* current water temperature in this city

** straight line distance from Tokyo