Water temperature in Kumamoto
83.4
°F
September 7, 19:21
Trend:
decreasingYesterday:
84.0°FTomorrow:
83.0°F
Sunrise:
Sunset:
Day Length:
12 h. 40 min.Kumamoto in September
Minimum:
52.2°FAverage:
57.6°FMaximum:
60.5°FSea water temperature in Kumamoto today
As of now, in Kumamoto, the water temperature is 83.4°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 1.4°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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 85.0°F on 2025, while the historical minimum was 79.1°F on 2016.
Daily water temperature in Kumamoto
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 24 | 87.4°F | 85.3°F | 84.0°F |
| Aug 25 | 87.5°F | 86.0°F | 84.1°F |
| Aug 26 | 86.8°F | 86.0°F | 84.2°F |
| Aug 27 | 87.0°F | 85.1°F | 84.1°F |
| Aug 28 | 87.3°F | 84.4°F | 83.9°F |
| Aug 29 | 87.4°F | 85.3°F | 84.0°F |
| Aug 30 | 87.1°F | 85.8°F | 84.2°F |
| Aug 31 | 86.7°F | 85.6°F | 83.9°F |
| Sep 1 | 86.8°F | 85.8°F | 83.8°F |
| Sep 2 | 86.2°F | 87.9°F | 83.6°F |
| Sep 3 | 86.4°F | 86.5°F | 83.3°F |
| Sep 4 | 85.8°F | 85.9°F | 83.0°F |
| Sep 5 | 84.8°F | 85.5°F | 82.7°F |
| Sep 6 | 84.0°F | 85.4°F | 82.6°F |
| Sep 7 | 83.4°F | 85.0°F | 82.1°F |
| Sep 8 | 83.0°F | 85.6°F | 81.6°F |
| Sep 9 | 82.9°F | 85.3°F | 81.6°F |
| Sep 10 | 82.9°F | 84.4°F | 81.6°F |
| Sep 11 | 83.0°F | 83.8°F | 81.7°F |
| Sep 12 | 83.4°F | 83.4°F | 82.0°F |
| Sep 13 | 83.2°F | 83.0°F | 81.9°F |
| Sep 14 | 83.1°F | 82.6°F | 81.8°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.