Haikou weather by month
Warmest month
June
33°C average high
Coolest month
January
16°C average low
Wettest month
August
82 mm of rain
Driest month
February
13 mm of rain
Average temperature and rainfall in Haikou by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 23°C | 16°C | 8°C / 28°C | 15 mm | 84% | 16 km/h |
| February | 22°C | 17°C | 5°C / 32°C | 13 mm | 85% | 15 km/h |
| March | 27°C | 20°C | 11°C / 34°C | 15 mm | 81% | 14 km/h |
| April | 30°C | 23°C | 16°C / 37°C | 36 mm | 80% | 14 km/h |
| May | 32°C | 25°C | 21°C / 38°C | 60 mm | 82% | 13 km/h |
| June | 33°C | 26°C | 23°C / 37°C | 72 mm | 81% | 11 km/h |
| July | 33°C | 26°C | 24°C / 36°C | 60 mm | 80% | 11 km/h |
| August | 32°C | 26°C | 23°C / 37°C | 82 mm | 83% | 12 km/h |
| September | 31°C | 25°C | 21°C / 36°C | 72 mm | 83% | 12 km/h |
| October | 29°C | 23°C | 16°C / 32°C | 67 mm | 83% | 17 km/h |
| November | 26°C | 21°C | 15°C / 31°C | 29 mm | 83% | 16 km/h |
| December | 22°C | 18°C | 10°C / 29°C | 22 mm | 80% | 17 km/h |
Frost and snow-likely months in Haikou
No month in Haikou averages a night of 2°C or below. The coldest month is January with an average low of 16°C and a record low of 8°C, so frost is rare and snow is very unlikely.
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Haikou
The most comfortable time to visit Haikou is generally December to February, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around August, totalling about 542 mm a year.
Travellers who prefer heat should aim for June, when highs average 33°C. August is the month to avoid if rain would spoil your plans — it averages 82 mm, roughly 6× the rainfall of the driest month (February).
Haikou climate: your questions
Is it going to snow in Haikou this year?
No: the coldest month in Haikou is January with an average low of 16°C and a record low of 8°C, so snow is very unlikely. What is falling now: Haikou weather today.
When is the best time to visit Haikou?
December to February are the most comfortable months in Haikou, with highs near 23°C. June is the warmest month, averaging 33°C by day; August is the wettest, with 82 mm; and January is the coolest, with lows near 16°C. What it is doing today: Haikou weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Haikou forecast for what is happening now.
Weather across China right now
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