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

74.6

°F

October 24, 05:04

Trend:

stable

Yesterday:

74.4°F

Tomorrow:

74.2°F

Sunrise:

05:55

Sunset:

16:56

Day Length:

11 h. 1 min.

Yokosuka in October

Minimum:

57.0°F

Average:

59.0°F

Maximum:

61.1°F

Sea water temperature in Yokosuka today

As of now, in Yokosuka, the water temperature is 74.6°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 3.5°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 fall 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 72.9°F on 2024, while the historical minimum was 69.1°F on 2021.

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 73.7°F, the minimum temperature may reach 73.3°F, and the maximum might stay at 74.2°F.

Daily water temperature in Yokosuka

Date Current Year

actual* / forecast**

last year 10 years average
Oct 10 72.5°F 73.8°F 73.5°F
Oct 11 73.1°F 73.8°F 73.1°F
Oct 12 72.6°F 73.7°F 72.9°F
Oct 13 72.6°F 73.5°F 72.9°F
Oct 14 72.3°F 73.9°F 72.7°F
Oct 15 72.9°F 73.6°F 72.8°F
Oct 16 73.4°F 73.1°F 72.6°F
Oct 17 73.0°F 72.5°F 72.6°F
Oct 18 71.7°F 72.8°F 72.1°F
Oct 19 72.4°F 74.1°F 72.4°F
Oct 20 72.8°F 74.1°F 72.3°F
Oct 21 74.6°F 73.3°F 71.7°F
Oct 22 74.2°F 73.1°F 71.7°F
Oct 23 74.4°F 73.1°F 70.9°F
Oct 24 74.6°F 72.9°F 71.0°F
Oct 25 74.2°F 72.7°F 70.7°F
Oct 26 73.8°F 72.4°F 70.3°F
Oct 27 73.8°F 70.0°F 70.3°F
Oct 28 73.8°F 70.7°F 70.2°F
Oct 29 73.3°F 69.8°F 69.8°F
Oct 30 73.7°F 71.4°F 70.1°F
Oct 31 73.5°F 70.8°F 70.0°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 73.9°F 9mi
Yokohama 75.3°F 10mi
Fujisawa 74.9°F 12mi
Kimitsu 73.6°F 12mi
Kisarazu 73.2°F 16mi
Kawasaki 74.7°F 17mi
Tokyo 73.8°F 28mi
Ichihara 72.6°F 28mi
Odawara 75.0°F 29mi
Chiba 72.6°F 33mi

* current water temperature in this city

** straight line distance from Yokosuka