Water temperature in Shimonoseki
84.4
°F
September 4, 13:56
Trend:
stableYesterday:
84.4°FTomorrow:
84.2°F
Sunrise:
Sunset:
Day Length:
12 h. 48 min.Shimonoseki in September
Minimum:
53.9°FAverage:
57.7°FMaximum:
59.3°FSea water temperature in Shimonoseki today
As of now, in Shimonoseki, the water temperature is 84.4°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 2.4°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
The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 85.8°F on 2025, while the historical minimum was 77.5°F on 2016.
Daily water temperature in Shimonoseki
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 21 | 82.9°F | 86.1°F | 83.0°F |
| Aug 22 | 83.2°F | 85.9°F | 83.0°F |
| Aug 23 | 82.2°F | 86.0°F | 83.1°F |
| Aug 24 | 82.1°F | 85.5°F | 83.1°F |
| Aug 25 | 83.8°F | 86.6°F | 83.4°F |
| Aug 26 | 84.1°F | 86.2°F | 83.2°F |
| Aug 27 | 84.0°F | 86.1°F | 83.1°F |
| Aug 28 | 83.9°F | 86.3°F | 83.0°F |
| Aug 29 | 84.1°F | 85.4°F | 82.8°F |
| Aug 30 | 84.4°F | 86.1°F | 82.9°F |
| Aug 31 | 83.8°F | 86.5°F | 82.8°F |
| Sep 1 | 84.4°F | 86.8°F | 82.8°F |
| Sep 2 | 84.5°F | 86.9°F | 82.5°F |
| Sep 3 | 84.4°F | 85.4°F | 81.9°F |
| Sep 4 | 84.4°F | 85.8°F | 81.9°F |
| Sep 5 | 84.2°F | 85.8°F | 81.8°F |
| Sep 6 | 84.1°F | 85.9°F | 81.7°F |
| Sep 7 | 84.0°F | 85.6°F | 81.5°F |
| Sep 8 | 83.4°F | 85.7°F | 81.0°F |
| Sep 9 | 83.3°F | 85.7°F | 80.9°F |
| Sep 10 | 83.2°F | 85.1°F | 80.8°F |
| Sep 11 | 83.3°F | 84.7°F | 80.8°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.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| Kitakyushu |
85.6°F
|
9mi |
| Fukuoka |
84.7°F
|
39mi |
| Beppu |
81.4°F
|
57mi |
| Ōita |
80.8°F
|
63mi |
* current water temperature in this city
** straight line distance from Shimonoseki