Kosai Water Temperature

(Today) 2024

16.6°C / 61.8°F

The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.

Current weather

7°C / 44°F
(scattered clouds)
Partly cloudy
Wind
23 mph
Humidity
35%

The measurements for the water temperature in Kosai, Shizuoka are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Kosai water temperature derived from many years of historical sea surface temperature data.

Kosai average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Kosai
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 13 12.5 12.6 14.5 16.8 19 23.5 24.8 23.1 21.3 17.5 14.7
Max °C 18.8 17.7 17.6 19.1 21.2 24.8 28 28.7 28.4 25.5 23.6 20.2
Min °F 57.7 56.6 56.7 59.9 64 68.5 76.1 78.2 75.7 72 65.9 60.6
Max °F 63.5 61.8 61.7 64.5 68.4 74.3 80.6 82.1 81 76.2 72 66.1

The warmest water temperature is in August with an average around 80.1°F / 26.7°C. The coldest month is February with an average water temperature of 59.2°F / 15.1°C.


7 day tide forecast for Kosai

SatSunMonTueWedThuFri
  • Low 3:05am
    (0.74m)
  • High 8:55am
    (1.84m)
  • Low 3:34pm
    (0.45m)
  • High 10:18pm
    (1.56m)
  • Low 3:39am
    (0.95m)
  • High 9:24am
    (1.73m)
  • Low 4:28pm
    (0.52m)
  • High 11:49pm
    (1.42m)
  • Low 4:32am
    (1.16m)
  • High 10:08am
    (1.59m)
  • Low 6:04pm
    (0.58m)
  • High 2:36am
    (1.46m)
  • Low 7:12am
    (1.3m)
  • High 11:45am
    (1.47m)
  • Low 8:25pm
    (0.49m)
  • High 3:54am
    (1.66m)
  • Low 9:27am
    (1.16m)
  • High 2:20pm
    (1.52m)
  • Low 9:41pm
    (0.28m)
  • High 4:38am
    (1.86m)
  • Low 10:18am
    (0.95m)
  • High 3:42pm
    (1.73m)
  • Low 10:33pm
    (0.09m)
  • High 5:14am
    (2.03m)
  • Low 10:58am
    (0.74m)
  • High 4:37pm
    (1.96m)
  • Low 11:17pm
    (-0.05m)
7 day tide times for Kosai

*These tide times are estimates based on the nearest accurate location (Maisaka, Sizuoka, Japan) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.