What is the current water temperature in Yokosuka?

Q: What is the current water temperature in Yokosuka?

As of now, in Yokosuka, the water temperature is 19.47°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

Japan > Yokosuka

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.

67.0

°F

May 8, 17:03

Trend:

stable

Yesterday:

66.7°F

Tomorrow:

67.0°F

Sunrise:

04:44

Sunset:

18:32

Day Length:

13 h. 48 min.

Yokosuka in May

Minimum:

56.1°F

Average:

59.6°F

Maximum:

62.4°F

Sea water temperature in Yokosuka today

As of now, in Yokosuka, the water temperature is 67.0°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 3.0°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 65.9°F on 2024, while the historical minimum was 62.6°F on 2017.

latest data

last year

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 67.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Yokosuka

Date	Current Year actual* / forecast**	last year	10 years average
Apr 24	63.0°F	61.4°F	61.7°F
Apr 25	63.3°F	61.5°F	61.6°F
Apr 26	63.3°F	61.9°F	62.2°F
Apr 27	63.5°F	62.2°F	62.3°F
Apr 28	63.4°F	63.7°F	62.2°F
Apr 29	63.4°F	62.3°F	62.3°F
Apr 30	63.9°F	61.9°F	62.2°F
May 1	64.3°F	61.5°F	62.7°F
May 2	63.8°F	62.0°F	62.9°F
May 3	65.2°F	62.9°F	63.5°F
May 4	66.7°F	63.9°F	63.9°F
May 5	66.9°F	63.0°F	64.0°F
May 6	66.7°F	63.2°F	64.3°F
May 7	66.7°F	63.2°F	64.4°F
May 8	67.0°F	63.9°F	64.1°F
May 9	67.0°F	64.2°F	64.0°F
May 10	67.0°F	64.2°F	64.0°F
May 11	67.4°F	64.6°F	64.4°F
May 12	67.1°F	64.3°F	64.1°F
May 13	67.3°F	64.5°F	64.3°F
May 14	67.4°F	64.9°F	64.5°F
May 15	67.9°F	66.0°F	64.9°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, 61.1°F in Spring, 76.2°F in Summer, and 72.7°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Futtsu	68.4°F	9mi
Yokohama	69.2°F	10mi
Fujisawa	65.8°F	12mi
Kimitsu	68.8°F	12mi
Kisarazu	68.7°F	16mi
Kawasaki	69.0°F	17mi
Tokyo	68.6°F	28mi
Ichihara	68.1°F	28mi
Odawara	67.6°F	29mi
Chiba	68.1°F	33mi

* current water temperature in this city

** straight line distance from Yokosuka