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 16.6°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.

61.9

°F

June 28, 10:18

Trend:

increasing

Yesterday:

61.8°F

Tomorrow:

62.0°F

Sunrise:

04:05

Sunset:

19:11

Day Length:

15 h. 6 min.

Yokohama in July

Minimum:

39.6°F

Average:

47.3°F

Maximum:

51.1°F

Sea water temperature in Yokohama today

As of now, in Yokohama, the water temperature is 61.9°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 1.4°F lower 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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 66.1°F on 2025, while the historical minimum was 58.9°F on 2018.

latest data

last year

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 suggests a gradual increase. The average temperature is expected to rise up to 63.4°F, with minimum temperature starting at 62.0°F, while the maximum might reach 64.4°F.

Daily water temperature in Yokohama

Date	Current Year actual* / forecast**	last year	10 years average
Jun 14	59.4°F	59.8°F	60.0°F
Jun 15	59.7°F	58.3°F	59.8°F
Jun 16	60.6°F	59.5°F	60.2°F
Jun 17	62.5°F	61.9°F	61.0°F
Jun 18	63.6°F	62.3°F	61.4°F
Jun 19	62.4°F	62.9°F	61.6°F
Jun 20	62.4°F	64.3°F	61.6°F
Jun 21	62.3°F	64.8°F	62.2°F
Jun 22	61.6°F	64.2°F	62.0°F
Jun 23	61.0°F	64.2°F	62.0°F
Jun 24	61.2°F	65.6°F	62.0°F
Jun 25	62.0°F	67.2°F	62.2°F
Jun 26	61.8°F	66.7°F	63.1°F
Jun 27	61.8°F	66.8°F	63.1°F
Jun 28	61.9°F	66.1°F	63.2°F
Jun 29	62.0°F	67.3°F	63.4°F
Jun 30	62.8°F	65.7°F	64.2°F
Jul 1	62.9°F	65.6°F	64.2°F
Jul 2	63.3°F	66.7°F	64.6°F
Jul 3	64.0°F	69.5°F	65.3°F
Jul 4	64.4°F	71.9°F	65.7°F
Jul 5	64.4°F	70.2°F	65.7°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, August is the only month that offers comfortable swimming conditions. The amount of days when the water is warm enough is only 49.

The warmest water in Yokohama was recorded on August 6, 2023, reaching a 82.5°F. While the coldest temperature occurred on January 5, 2021, dipping to 38.4°F. The average readings by season are 47.3°F in Winter, 47.5°F in Spring, 67.9°F in Summer, and 66.3°F in Autumn.