Weather in Hainan: October
 |
Average day temperature: | 80.1°F |
| Average night temperature: | 68.9°F | |
 |
Sea water temperature: | 82.3°F |
 |
Number of sunny days: | 4 days |
| Day length: | 11.5 - 12.0 hours | |
 |
Number of rainy days: | 12 days |
| Precipitation totals: | 9.1 in. | |
| more information | ||
forecast
| Hainan |
temperature
| Hainan |
Air temperature in October, °F
The highest day temperature during October of 2025 was 86°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during October were 77.8°F and 70.4°F.
Sea water temperature in Hainan in October, °F
The average sea water temperature in October of 2025 was 82.6°F. The highest and lowest sea temperatures during the month were 84.7°F and 80.4°F.
Mostly all days in October are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in October, in.
Precipitation total value in Hainan in October is 9.9 in. Other months of the year show relatively similar values.
The average wind speed value in October is 4.4 mph It makes October one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in October is: 3.3.
Best time for vacation in Hainan
Hainan on a weather map
8 mph
8 mph
6 mph
5 mph
4 mph
4 mph
4 mph
6 mph
