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Hong Kong has a sub-tropical climate with distinct seasons. The only predictable weather events that could have a significant impact on your travel plans are typhoons.
Typhoon season begins in May and ends in November. When a typhoon is approaching, warnings are broadcast on television and radio. There are various degrees of warning signals issued by the Hong Kong Observatory, but when the no. 8 signal is in place, most businesses and shops close down and flights may be cancelled. There is a separate warning system for heavy rain.
You can find detailed information about current and seasonal weather on the Hong Kong Observatory website. While you're in Hong Kong, you can also dial 1878 200 and press '3' for English to check the latest situation.
Spring (March to May)
Temperature and humidity are rising. Evenings can be cool.
Average Temperature: 17°C - 26°C
Autumn (September to November)
There are pleasant breezes, plenty of sunshine and comfortable temperatures. Many people regard these as the best months of the year to visit Hong Kong.
Average Temperature: 19°C - 28°C
Summer (June to August)
Hot, humid and sunny, with occasional showers and thunderstorms. The temperature can exceed 31°C but high humidity levels can make it feel even hotter.
Average Temperature: 26°C - 31°C
Winter (December to February)
Cool, dry and cloudy, with occasional cold fronts. The temperature can drop below 10°C in urban areas.
Average Temperature: 12°C - 20°C