Hong Kong weather by month & the best time to visit
Hong Kong SAR China · major coastal city · humid subtropical climate
The best time to visit Hong Kong is December — its sunniest month (Sunshine Score 84/100), with February and November close behind. Hong Kong averages about 1,674 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 21 mm of rain in December.
When is the best time to visit Hong Kong?
For sunshine, the best time to visit Hong Kong is December, then February and November. The dullest month is May (61/100, 231 mm of rain). The full month-by-month picture is in the table below.
How sunny is Hong Kong?
Hong Kong isn't a sunny place by world standards: about 1,674 hours of sunshine a year. December (84/100) is noticeably better than May (61). It is the only destination Sunshine Atlas tracks in Hong Kong SAR China. Rain has a clear season: the wettest stretch, around July, carries about 49% of the annual 1,470 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 75 | 19° / 66°F | 13° / 55°F | 35 mm | 5 | 19° / 66°F |
| February | 83 | 21° / 70°F | 15° / 59°F | 29 mm | 5 | 20° / 68°F |
| March | 76 | 23° / 73°F | 18° / 64°F | 69 mm | 5 | 21° / 70°F |
| April | 68 | 25° / 77°F | 21° / 70°F | 109 mm | 6 | 27° / 81°F |
| May | 61 | 28° / 82°F | 25° / 77°F | 231 mm | 7 | 27° / 81°F |
| June | 61 | 29° / 84°F | 27° / 81°F | 288 mm | 8 | 29° / 84°F |
| July | 61 | 30° / 86°F | 28° / 82°F | 197 mm | 9 | 31° / 88°F |
| August | 61 | 30° / 86°F | 27° / 81°F | 234 mm | 9 | 30° / 86°F |
| September | 61 | 30° / 86°F | 26° / 79°F | 173 mm | 8 | 30° / 86°F |
| October | 78 | 28° / 82°F | 23° / 73°F | 55 mm | 7 | 28° / 82°F |
| November | 83 | 25° / 77°F | 19° / 66°F | 29 mm | 6 | 25° / 77°F |
| December | 84 | 21° / 70°F | 14° / 57°F | 21 mm | 5 | 20° / 68°F |
Sea temperature in Hong Kong by month
The sea off Hong Kong is warmest in July at around 31°C / 88°F, and coolest in January at 19°C / 66°F. The water sits at a comfortable 21°C or warmer roughly 9 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Head-to-head
How Hong Kong compares month by month: Hong Kong vs Shenzhen · Hong Kong vs Guangzhou (Huadu) · Hong Kong vs Huizhou (Pingtan) · Hong Kong vs Zhuhai (Jinwan) · all comparisons
Hong Kong: questions and answers
What kind of destination is Hong Kong?
Hong Kong is a major coastal city in Hong Kong SAR China with a humid subtropical climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) about 9 months a year.
How many hours of sunshine does Hong Kong get a year?
Hong Kong gets about 1,674 hours of sunshine a year, at its best around December.
When is the best time to visit Hong Kong?
The sunniest time to visit Hong Kong is December, when the Sunshine Score peaks at 84/100 (with February and November close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Hong Kong?
May is the least sunny month in Hong Kong, scoring 61/100 with about 231 mm of rain.
What is the sea temperature in Hong Kong?
The sea in Hong Kong ranges from about 19°C (January) to 31°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in Hong Kong?
The typical midday UV index in Hong Kong peaks around 9 (very high) in July, easing to about 5 (moderate) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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