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 10.07°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.

50.1

°F

January 28, 11:15

Trend:

increasing

Yesterday:

50.0°F

Tomorrow:

50.1°F

Sunrise:

06:45

Sunset:

17:04

Day Length:

10 h. 19 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 50.1°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 2.2°F lower 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 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 55.9°F on 2016, while the historical minimum was 49.6°F on 2022.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 49.9°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 14	51.2°F	53.4°F	53.6°F
Jan 15	52.3°F	53.2°F	53.4°F
Jan 16	51.7°F	52.5°F	53.5°F
Jan 17	51.0°F	53.0°F	53.6°F
Jan 18	51.2°F	52.4°F	53.6°F
Jan 19	50.5°F	52.0°F	53.4°F
Jan 20	51.9°F	51.6°F	53.1°F
Jan 21	52.2°F	52.8°F	53.2°F
Jan 22	51.1°F	50.2°F	52.6°F
Jan 23	49.9°F	49.1°F	52.6°F
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	52.2°F
Jan 28	50.1°F	52.3°F	52.4°F
Jan 29	50.1°F	52.3°F	52.4°F
Jan 30	49.9°F	52.2°F	52.1°F
Jan 31	50.0°F	51.2°F	52.3°F
Feb 1	49.6°F	50.8°F	51.8°F
Feb 2	49.8°F	51.2°F	52.0°F
Feb 3	50.0°F	51.9°F	52.3°F
Feb 4	50.1°F	50.5°F	52.3°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, 60.3°F in Spring, 77.9°F in Summer, and 71.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kawasaki	51.7°F	12mi
Matsudo	49.1°F	13mi
Honchō	49.1°F	17mi
Yokohama	53.5°F	18mi
Chiba	48.3°F	25mi
Ichihara	48.6°F	25mi
Kisarazu	50.8°F	25mi
Kimitsu	51.7°F	25mi
Fujisawa	57.7°F	26mi
Futtsu	53.8°F	27mi

* current water temperature in this city

** straight line distance from Tokyo