Haikou weather in December
December is one of the best months to visit Haikou: highs of 22°C (71°F) and about 49 mm (1.9 in) of rain on average. Nights average 18°C (65°F) and cloud cover 66% (NASA POWER, 2001–2025 averages). It is the 4th driest month of the year and the 2nd coolest. Compared with November, it is cooler and drier; January brings highs of 21°C (70°F) and 33 mm (1.3 in) of rain.
Is December a good time to visit Haikou?
best month Weather score 79/100.
Yes. December is one of the best months for weather in Haikou.
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Does it rain a lot in Haikou in December?
No, it is usually dry: about 49 mm (1.9 in) falls in an average December. It is the 4th driest month of the year.
How warm is Haikou in December?
Days average 22°C (71°F) and nights 18°C (65°F).
Haikou weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 21°C (70°F) | 17°C (62°F) | 33 mm | 70% | best |
| February | 23°C (73°F) | 17°C (63°F) | 28 mm | 71% | best |
| March | 25°C (77°F) | 20°C (67°F) | 47 mm | 68% | best |
| April | 28°C (83°F) | 23°C (73°F) | 88 mm | 61% | best |
| May | 30°C (86°F) | 25°C (78°F) | 190 mm | 64% | fair |
| June | 30°C (87°F) | 27°C (80°F) | 205 mm | 74% | fair |
| July | 30°C (87°F) | 26°C (80°F) | 236 mm | 68% | least pleasant |
| August | 30°C (86°F) | 27°C (80°F) | 313 mm | 68% | least pleasant |
| September | 29°C (85°F) | 26°C (79°F) | 293 mm | 64% | least pleasant |
| October | 28°C (82°F) | 24°C (76°F) | 278 mm | 54% | least pleasant |
| November | 25°C (77°F) | 22°C (71°F) | 81 mm | 59% | best |
| December | 22°C (71°F) | 18°C (65°F) | 49 mm | 66% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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