Hong Kong weather by month
2006-2025, 20 years of records · Not a forecast
Hong Kong has a subtropical monsoon climate. About 80 percent of annual rain falls between May and September, June is the wettest month and December the driest. Tropical cyclones can come from May to November, most often from July to September.
November and December are fairly dry and good for travel. March and April are humid and clammy. When Typhoon Signal No. 8 goes up, public transport is sharply reduced or stops, so leave slack in your plans. Rainstorm warnings escalate from amber to red to black.
March, November and December gave the best mix of comfortable warmth and few rain days in Hong Kong. To dodge the rain, December and January (3 rain days) was the stretch to look at, not June (17).
Each month in a line
| January | cool and fresh, little rain | 19° / 15° |
|---|---|---|
| February | cool | 20° / 15° |
| MarchGood | comfortably warm | 22° / 18° |
| April | warm | 26° / 21° |
| May | properly hot | 29° / 25° |
| June | hot, rain every other day | 31° / 27° |
| July | seriously hot, rain every other day | 32° / 27° |
| August | very hot, rain every other day | 31° / 27° |
| September | properly hot | 31° / 26° |
| October | properly hot, occasional rain | 28° / 24° |
| NovemberGood | warm, little rain | 25° / 20° |
| DecemberGood | cool and fresh, only a little rain | 21° / 16° |
The 12 months in numbers
Temperatures hardly moved: 32°C in July against 19°C in January.
| Month | High | Low | Rain days | Rainfall | Humidity | Clear days | Sea |
|---|---|---|---|---|---|---|---|
| January | 19° | 15° | 3 days | 34mm | 73% | 9 days | 19° |
| February | 20° | 15° | 4 days | 37mm | 79% | 4 days | 19° |
| March | 22° | 18° | 6 days | 83mm | 82% | 4 days | 21° |
| April | 26° | 21° | 8 days | 157mm | 83% | 2 days | 23° |
| May | 29° | 25° | 12 days | 318mm | 84% | 2 days | 27° |
| June | 31° | 27° | 17 days | 486mm | 85% | 1 day | 28° |
| July | 32° | 27° | 15 days | 361mm | 83% | 3 days | 30° |
| August | 31° | 27° | 16 days | 416mm | 84% | 3 days | 29° |
| September | 31° | 26° | 12 days | 358mm | 80% | 5 days | 29° |
| October | 28° | 24° | 6 days | 203mm | 75% | 10 days | 28° |
| November | 25° | 20° | 4 days | 56mm | 75% | 9 days | 24° |
| December | 21° | 16° | 3 days | 23mm | 70% | 11 days | 21° |
Enter your dates to see how that stretch went in each of the past 20 years.
Common questions
When is the best time to visit Hong Kong?
March, November and December gave the best mix of comfortable warmth and few rain days in Hong Kong. To dodge the rain, December and January (3 rain days) was the stretch to look at, not June (17).
Which month is driest in Hong Kong?
December. Over 2006-2025 it averaged 3 rain days and 23 mm of rain.
Which month is warmest in Hong Kong?
July, with highs averaging 32°C and lows 27°C. Temperatures hardly moved: 32°C in July against 19°C in January.