Hong Kong has a subtropical highland climate, classified as Cwa in the Köppen system. The warmest month is July with an average high of 30°C, while the coldest month is January with lows dropping to 13°C. The annual temperature range of 17°C reflects moderate seasonal variation.
The driest month is December with only 4 rain days and 29mm of precipitation. For travellers, December through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 78% to 78% throughout the year.
Best Time to Visit Hong Kong
Based on temperature and rainfall data, the best months to visit Hong Kong are January, November, December. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
In July, Hong Kong experiences average highs of 30°C (86°F) and lows of 26°C (79°F). Expect around 24 rainy days and 10 hours of sunshine per day, with humidity averaging 78%. The 4°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV index averages 9, so sun protection is advisable on clear days.
Hong Kong typically sees 24 rainy days in July, with total precipitation of around 253mm. This is a notably wet period. A waterproof jacket or compact umbrella is essential, and it is worth building indoor alternatives into your daily itinerary for the inevitable rainy stretches. For context, the driest month in Hong Kong typically sees 4-6 fewer rain days than July.
Pack lightweight, breathable clothing (linen or cotton), a wide-brim sun hat, SPF 50+ sunscreen, and a refillable water bottle for Hong Kong in July. The 30°C daytime heat demands sun protection during midday hours, typically 11am to 4pm. A compact travel umbrella is also worth packing, as 24 rainy days means afternoon showers are a real possibility. Quick-dry synthetic fabrics are preferable to cotton in 78% humidity.
July is a reasonable time to visit Hong Kong. Expect 24 rainy days, so pack a light rain layer for flexibility. Average temperatures of 30°C make outdoor exploration comfortable during the dry periods. With 10 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.
The average high temperature in Hong Kong in July is 30°C (86°F), and the average low is 26°C (79°F). The mean daily temperature is approximately 28°C (82°F). The day-to-night range of 4°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Hong Kong is generally October. October offers the most sunshine at 9 hours per day and only 7 rainy days. Average temperatures reach 27°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around October gives you the best chance of dry, bright weather.
July is shoulder or low season in Hong Kong, meaning fewer tourists and generally lower prices than peak months. With 10 sunshine hours and 24 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In July, Hong Kong suits a range of activities thanks to warm temperatures of 30°C. With frequent rain, indoor activities and covered attractions are a smart choice. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 10 hours of sunshine, parks and waterfront walks are particularly enjoyable.