All data are in degrees Fahrenheit

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Water temperature in Yokosuka

Detailed information about the current water temperature in Yokosuka. 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.
Sea temperature in Yokosuka now

69.2

°F

June 5, 19:57

Trend:

increasing

Yesterday:

69.2°F

Tomorrow:

69.3°F

Sunrise:

04:27

Sunset:

18:53

Day Length:

14 h. 26 min.

Yokosuka in June

Minimum:

56.2°F

Average:

59.8°F

Maximum:

62.0°F

Sea water temperature in Yokosuka today

As of now, in Yokosuka, the water temperature is 69.2°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 about the same as 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 71.7°F on 2018, while the historical minimum was 67.7°F on 2023.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 69.7°F, with minimum temperature starting at 69.3°F, while the maximum might reach 70.4°F.

Daily water temperature in Yokosuka

Date Current Year

actual* / forecast**

last year 10 years average
May 22 70.9°F 66.4°F 67.0°F
May 23 70.1°F 66.7°F 67.1°F
May 24 69.5°F 66.8°F 67.3°F
May 25 67.6°F 66.9°F 67.4°F
May 26 68.8°F 67.1°F 67.7°F
May 27 70.3°F 67.1°F 67.8°F
May 28 70.6°F 67.3°F 67.9°F
May 29 69.8°F 67.7°F 68.1°F
May 30 69.2°F 67.9°F 68.1°F
May 31 70.3°F 68.2°F 68.5°F
Jun 1 69.0°F 68.3°F 68.3°F
Jun 2 69.2°F 69.4°F 68.5°F
Jun 3 69.2°F 69.5°F 69.0°F
Jun 4 69.2°F 69.5°F 69.0°F
Jun 5 69.2°F 69.2°F 69.1°F
Jun 6 69.3°F 69.3°F 69.2°F
Jun 7 69.3°F 68.4°F 69.2°F
Jun 8 69.6°F 69.7°F 69.5°F
Jun 9 69.6°F 69.7°F 69.5°F
Jun 10 69.9°F 69.7°F 69.8°F
Jun 11 69.9°F 69.7°F 69.8°F
Jun 12 70.4°F 69.7°F 70.3°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 Yokosuka by month

In Yokosuka, the months July through September offer comfortable swimming conditions, which amounts to 104 swimming days.
The warmest water in Yokosuka was recorded on August 13, 2023, reaching a 84.7°F. While the coldest temperature occurred on March 2, 2026, dipping to 51.8°F. The average readings by season are 59.7°F in Winter, 61.2°F in Spring, 76.2°F in Summer, and 72.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Futtsu 69.4°F 9mi
Yokohama 70.0°F 10mi
Fujisawa 70.4°F 12mi
Kimitsu 69.9°F 12mi
Kisarazu 70.1°F 16mi
Kawasaki 70.8°F 17mi
Tokyo 71.3°F 28mi
Ichihara 71.2°F 28mi
Odawara 70.1°F 29mi
Chiba 71.3°F 33mi

* current water temperature in this city

** straight line distance from Yokosuka