Water temperature in Haikou
83.6
°F
October 21, 20:18
Trend:
stableYesterday:
83.6°FTomorrow:
83.5°F
Sunrise:
Sunset:
Day Length:
11 h. 36 min.Haikou in October
Minimum:
67.0°FAverage:
68.9°FMaximum:
71.4°FSea water temperature in Haikou today
As of now, in Haikou, the water temperature is 83.6°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 2.3°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 83.0°F on 2025, while the historical minimum was 80.2°F on 2016.
Daily water temperature in Haikou
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 7 | 84.7°F | 82.9°F | 83.9°F |
| Oct 8 | 84.6°F | 82.4°F | 83.6°F |
| Oct 9 | 84.6°F | 83.2°F | 83.7°F |
| Oct 10 | 83.6°F | 83.1°F | 83.4°F |
| Oct 11 | 82.9°F | 83.0°F | 83.3°F |
| Oct 12 | 82.7°F | 82.7°F | 82.9°F |
| Oct 13 | 82.6°F | 82.7°F | 82.7°F |
| Oct 14 | 83.3°F | 82.9°F | 82.7°F |
| Oct 15 | 83.1°F | 82.5°F | 82.4°F |
| Oct 16 | 83.1°F | 82.6°F | 82.2°F |
| Oct 17 | 83.1°F | 83.1°F | 82.1°F |
| Oct 18 | 83.5°F | 83.2°F | 82.1°F |
| Oct 19 | 83.1°F | 83.3°F | 81.8°F |
| Oct 20 | 83.6°F | 83.1°F | 81.6°F |
| Oct 21 | 83.6°F | 83.0°F | 81.3°F |
| Oct 22 | 83.5°F | 82.7°F | 81.1°F |
| Oct 23 | 83.4°F | 82.5°F | 81.1°F |
| Oct 24 | 83.2°F | 82.3°F | 80.9°F |
| Oct 25 | 83.2°F | 82.0°F | 80.8°F |
| Oct 26 | 82.9°F | 81.7°F | 80.6°F |
| Oct 27 | 82.8°F | 81.5°F | 80.5°F |
| Oct 28 | 82.6°F | 81.2°F | 80.2°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.