What is the current water temperature in Yokohama?

Q: What is the current water temperature in Yokohama?

As of now, in Yokohama, the water temperature is 18.77°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Japan > Yokohama

Water temperature in Yokohama

Detailed information about the current water temperature in Yokohama. 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.

65.8

°F

April 28, 11:33

Trend:

increasing

Yesterday:

65.5°F

Tomorrow:

66.1°F

Sunrise:

04:54

Sunset:

18:24

Day Length:

13 h. 30 min.

Yokohama in May

Minimum:

53.3°F

Average:

56.0°F

Maximum:

60.1°F

Sea water temperature in Yokohama today

As of now, in Yokohama, the water temperature is 65.8°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 3.6°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 64.0°F on 2025, while the historical minimum was 59.7°F on 2017.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.9°F, with minimum temperature starting at 66.0°F, while the maximum might reach 67.9°F.

Daily water temperature in Yokohama

Date	Current Year actual* / forecast**	last year	10 years average
Apr 14	60.6°F	60.5°F	59.4°F
Apr 15	60.5°F	60.4°F	59.6°F
Apr 16	62.1°F	60.6°F	60.3°F
Apr 17	61.7°F	60.0°F	60.7°F
Apr 18	62.9°F	58.7°F	60.9°F
Apr 19	62.1°F	59.3°F	60.7°F
Apr 20	62.1°F	60.7°F	61.0°F
Apr 21	63.1°F	62.2°F	61.6°F
Apr 22	63.4°F	62.9°F	61.9°F
Apr 23	64.1°F	62.5°F	62.0°F
Apr 24	63.6°F	62.2°F	61.9°F
Apr 25	64.3°F	62.0°F	61.8°F
Apr 26	63.4°F	61.9°F	62.2°F
Apr 27	65.5°F	61.1°F	61.9°F
Apr 28	65.8°F	64.0°F	62.2°F
Apr 29	66.1°F	63.9°F	62.6°F
Apr 30	66.0°F	63.4°F	62.4°F
May 1	66.5°F	62.2°F	62.9°F
May 2	66.5°F	62.5°F	62.9°F
May 3	67.5°F	64.5°F	63.9°F
May 4	67.9°F	65.5°F	64.3°F
May 5	67.8°F	64.2°F	64.3°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 Yokohama by month

In Yokohama, the months July through September offer comfortable swimming conditions, which amounts to 105 swimming days.

The warmest water in Yokohama was recorded on July 30, 2024, reaching a 86.1°F. While the coldest temperature occurred on March 4, 2022, dipping to 49.1°F. The average readings by season are 56.6°F in Winter, 60.5°F in Spring, 77.1°F in Summer, and 72.1°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kawasaki	64.8°F	7mi
Yokosuka	63.4°F	10mi
Fujisawa	65.0°F	11mi
Futtsu	64.2°F	13mi
Kimitsu	64.0°F	14mi
Kisarazu	63.8°F	16mi
Tokyo	64.0°F	18mi
Ichihara	63.5°F	25mi
Honchō	63.9°F	26mi
Matsudo	63.9°F	28mi

* current water temperature in this city

** straight line distance from Yokohama