Climate of Hainan, China
Area-weighted average across Hainan. For where people actually live and travel, see the cities below.
Hainan, a subdivision of China, has a Mediterranean-style climate on average. Area-weighted monthly temperatures across the whole territory range from 18.4°C / 65.1°F in January to 27.9°C / 82.2°F in June, with rainfall from 20 mm / 0.8 in to 267 mm / 10.5 in depending on the season (1570 mm / 61.8 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 18.4°C65.1°F | 20 mm0.8″ | Sunny & Mild |
| February | 19.5°C67.1°F | 24 mm0.9″ | Sunny & Mild |
| March | 22.1°C71.8°F | 33 mm1.3″ | Sunny & Warm |
| April | 25.2°C77.4°F | 71 mm2.8″ | — |
| May | 27.2°C81°F | 157 mm6.2″ | Tropical |
| June | 27.9°C82.2°F | 200 mm7.9″ | Tropical |
| July | 27.9°C82.2°F | 206 mm8.1″ | Tropical |
| August | 27.4°C81.3°F | 253 mm10″ | Tropical |
| September | 26.4°C79.5°F | 267 mm10.5″ | Tropical |
| October | 24.7°C76.5°F | 226 mm8.9″ | Tropical |
| November | 22°C71.6°F | 82 mm3.2″ | Tropical |
| December | 19.2°C66.6°F | 31 mm1.2″ | Sunny & Mild |
Frequently asked questions
What is the best time to visit Hainan?
The best months to visit Hainan, China for sunny, dry weather are January, February, March, December. The warmest month is June at an area-wide average of 27.9°C / 82.2°F, and the driest is January with about 20 mm / 0.8 in of rainfall.
What is the climate of Hainan?
Hainan, China has area-weighted monthly average temperatures ranging from 18.4°C / 65.1°F in January to 27.9°C / 82.2°F in June. Annual rainfall averages about 1570 mm / 61.8 in, with the wettest month being September (267 mm / 10.5 in) and the driest January (20 mm / 0.8 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Hainan?
The hottest month in Hainan is June, with an area-wide average temperature of 27.9°C / 82.2°F.
What is the coldest month in Hainan?
The coldest month in Hainan is January, with an area-wide average temperature of 18.4°C / 65.1°F.
When does it rain most in Hainan?
The wettest month in Hainan is September, averaging about 267 mm / 10.5 in of rainfall. The driest is January with about 20 mm / 0.8 in.