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

81.7

°F

August 29, 01:22

Trend:

decreasing

Yesterday:

81.9°F

Tomorrow:

81.7°F

Sunrise:

05:11

Sunset:

18:14

Day Length:

13 h. 3 min.

Yokosuka in September

Minimum:

57.3°F

Average:

59.3°F

Maximum:

61.2°F

Sea water temperature in Yokosuka today

As of now, in Yokosuka, the water temperature is 81.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.8°F higher 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 stay about the same.

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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 83.2°F on 2020, while the historical minimum was 78.6°F on 2022.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 81.1°F, the minimum temperature may reach 80.4°F, and the maximum might stay at 81.7°F.

Daily water temperature in Yokosuka

Date Current Year

actual* / forecast**

last year 10 years average
Aug 15 80.2°F 79.9°F 80.7°F
Aug 16 79.1°F 80.4°F 80.6°F
Aug 17 78.2°F 80.2°F 80.4°F
Aug 18 80.0°F 80.7°F 80.0°F
Aug 19 80.0°F 81.4°F 80.2°F
Aug 20 80.8°F 80.2°F 80.5°F
Aug 21 81.1°F 80.7°F 80.5°F
Aug 22 81.6°F 81.2°F 80.8°F
Aug 23 80.5°F 81.1°F 80.6°F
Aug 24 81.0°F 80.7°F 80.2°F
Aug 25 82.0°F 81.3°F 80.7°F
Aug 26 81.3°F 81.3°F 80.8°F
Aug 27 79.6°F 80.5°F 81.0°F
Aug 28 81.9°F 80.9°F 81.1°F
Aug 29 81.7°F 80.1°F 80.9°F
Aug 30 81.7°F 80.5°F 80.9°F
Aug 31 81.6°F 83.2°F 80.9°F
Sep 1 81.3°F 83.6°F 80.6°F
Sep 2 81.1°F 82.3°F 80.4°F
Sep 3 81.0°F 82.0°F 80.2°F
Sep 4 80.4°F 81.0°F 79.7°F
Sep 5 80.6°F 80.6°F 79.9°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 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 83.0°F 9mi
Yokohama 81.5°F 10mi
Fujisawa 82.0°F 12mi
Kimitsu 83.8°F 12mi
Kisarazu 84.1°F 16mi
Kawasaki 82.5°F 17mi
Tokyo 82.9°F 28mi
Ichihara 84.7°F 28mi
Odawara 81.4°F 29mi
Chiba 84.4°F 33mi

* current water temperature in this city

** straight line distance from Yokosuka