Koga Water Temperature

(Today) 2024

21.4°C / 70.5°F

The water will feel tepid. Swimming will be tolerable without a wetsuit, although it will take a little getting used to. If you intend to stay in the water for a while a 3/2mm wetsuit will be ideal.

Current weather

19°C / 67°F
(shower rain)
Partly cloudy
Wind
1 mph
Humidity
94%

The measurements for the water temperature in Koga, Fukuoka 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 Koga water temperature derived from many years of historical sea surface temperature data.

Koga average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Koga
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 13.6 13 13 13.7 15.6 19 23 25.9 23.8 22.3 18.9 15.2
Max °C 17.8 15.1 14.7 17.2 20.8 24.3 27.4 28.9 28.1 25.2 23.1 20.7
Min °F 58.2 56.2 56 58 62.2 68.3 75.2 79.8 76.5 73.3 67.7 61.5
Max °F 62.4 58.3 57.7 61.5 67.4 73.6 79.6 82.8 80.8 76.2 71.9 67

The warmest water temperature is in August with an average around 81.3°F / 27.4°C. The coldest month is March with an average water temperature of 56.8°F / 13.8°C.


7 day tide forecast for Koga

MonTueWedThuFriSatSun
  • High 4:57am
    (3.04m)
  • Low 11:39am
    (1.29m)
  • High 6:01pm
    (2.97m)
  • Low 11:59pm
    (1.7m)
  • High 5:44am
    (3.04m)
  • Low 12:23pm
    (1.06m)
  • High 6:58pm
    (3.19m)
  • Low 12:56am
    (1.66m)
  • High 6:28am
    (3.07m)
  • Low 1:04pm
    (0.84m)
  • High 7:45pm
    (3.41m)
  • Low 1:45am
    (1.6m)
  • High 7:11am
    (3.12m)
  • Low 1:46pm
    (0.63m)
  • High 8:27pm
    (3.6m)
  • Low 2:29am
    (1.53m)
  • High 7:52am
    (3.18m)
  • Low 2:29pm
    (0.45m)
  • High 9:09pm
    (3.74m)
  • Low 3:12am
    (1.46m)
  • High 8:35am
    (3.25m)
  • Low 3:13pm
    (0.32m)
  • High 9:51pm
    (3.83m)
  • Low 3:54am
    (1.41m)
  • High 9:18am
    (3.32m)
  • Low 3:57pm
    (0.24m)
  • High 10:35pm
    (3.85m)
7 day tide times for Koga

*These tide times are estimates based on the nearest accurate location (Tuyazaki, Hukuoka, 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.