Hong Kong
Hong Kong
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and Climate
Hong Kong, Hong Kong

A bird
A bird's eye view of the lit city of Hong Kong, in the Hong Kong Island
Hong Kong has a humid subtropical type of climate (Köppen climate classification Cwa) with hot and humid summers and cold and dry winters. It is a special administrative region of the People's Republic of China, which lies in south China on the east side of the Pearl River estuary and surrounded by the South China Sea on all sides except the north. The vast surrounding bodies of water and the tropical latitudes combine to provide Hong Kong with a warm climate with an abundant amount of rain.

Hong Kong consists of Hong Kong Island, the Kowloon Peninsula, New Territories, and minor islands and is the fourth most densely populated region in the world - the significant amount of land reclaimed from the sea falls short compared to the demand of urban developable flat land. The undeveloped terrain consists of hills and mountains with steep slopes as well as grasslands, woodlands, and farmlands, which aids the region's climate to support a diverse ecosystem of plant and animal species typical of a tropical rainforest. Hong Kong's location - marginally south of the Tropic of Cancer in the Northern Hemisphere and its proximity to the sea, significantly influences its climate.

Hong Kong has an average of 1700 hours of sunshine over the year, and its climate with abundant sunshine and ample rain is suitable enough to support a tropical rainforest. Summers are hot, humid and wet with average high temperatures in the range of 89°F (31.7°C) in the peak of July. High temperatures to the tune of 97°F (36.1°C) are not as rare, as the high humidity translates into abundant rain with thundershowers. Winters are mild as average low temperatures hardly drop below 58°F (14.4°C) and low temperatures below 50°F (10°C) are rare. Spring and autumn are temperate seasons with warmer temperatures and the absence of a large number of rainy days.

Snow is practically non-existent except at high altitudes on the mountain peaks. Frost also occurs at higher elevations but the fog is common on the high ground facing the southeast. Rainfall is abundant to the tune of 95" (2413mm) over the year. Majority of the rain falls in the summer, typical of a monsoonal type of climate, though the rain is present in minor periods over the rest of the year. Hong Kong's coastal location makes it vulnerable to tropical cyclones originating from the South China Sea. Cold winds from the northeast in winter and warm winds from the southwest during summer influence the climate of the region.

Hong Kong is a world-renowned financial, commercial and tourist hub with an agreeable climate devoid of extremely high or low temperatures. The best time to visit Hong Kong is from October to December in the autumn and March to April in the spring season as crowds tend to swell by the New Year.
Autumn is the best season with mild temperatures in the average range of 60°F (15.6°C) to 80°F (26.7°C) with a reduced risk of tropical cyclones and relatively drier weather with clear skies.
Spring is warm with average temperatures in the range of 70°F (21.1°C) to 82°F (27.8°C) and sometimes cloudy with a little rain.

The hot summer from June to September with sweltering heat is the worst time to visit Hong Kong. The mercury crosses 95°F (35°C) on many days, but the humidity of more than 80% makes the weather uncomfortable. Low temperatures rarely drop below 78°F (25.6°C) due to the cloudy skies and the rain is abundant.
Summer receives 80% of the yearly rainfall, as the average number of rainy days is about 65.
Additionally, there is a risk of typhoons from June to September, which makes it a time to avoid Hong Kong.

Tropical cyclones pose a regular threat to Hong Kong during the summer months from June to September, and sometimes as early as April and late up to November. Typhoons of Southeast Asia mostly result in floods and landslides and bring devastation to life and property. Strong winds accompanied by thunderstorms and torrential rains even disrupt international shipping at the maritime ports such as Victoria Harbor. Cyclones also make major landfalls that result in terrible destruction.

January is the coldest and driest month in Hong Kong with an average low temperature of 58°F (14.4°C). Average high temperatures are around a pleasant 65°F (18.3°C) accompanied by a few days of rain in the form of drizzle as the highs seldom rise above 70°F (21.1°C). Weather in January »

February is a mildly cold winter month with the average temperatures in a steady 59°F (15°C) to 66°F (18.9°C) range. It is cloudy, as the sun does not shine for more than 3.5 hours a day and the days are short. Weather in February »

Spring begins by March and brings temperate weather with the average temperatures in the agreeable 63°F (17.2°C) to 70°F (21.1°C) range. Northern cold winds are sometimes active in spring, but it is unusual for the thermometer to register sub 52°F (11.1°C) temperatures. Weather in March »

April is a wonderful month to visit Hong Kong with temperate conditions. An odd day may surprise with a high of 85°F (29.4°C) or a low of 60°F (15.6°C), but the average temperatures are in a steady and pleasant range of 70°F (21.1°C) to 77°F (25°C). Weather in April »

May is a transitional month in spring as the temperatures rise along with an increase in wet conditions and the highest humidity of the year at 83%. It is pleasantly warm with the average temperatures in the range of 75°F (23.9°C) to 83°F (28.3°C). Weather in May »

Heavy rain with thunderstorms is a feature of the hot and humid weather as the sun breaks the cloud cover for about 5 hours a day. The average temperatures are in the range of 79°F (26.1°C) to 86°F (30°C) with a few days that go past 90°F (32.2°C). Weather in June »

July is the hottest month of the year with the average high temperatures at a blistering 89°F (31.7°C). It is a time to avoid Hong Kong with its sweltering heat and humidity, as the temperatures rarely drop below the average low of 80°F (26.7°C). Weather in July »

August is a hot month in the summer season with the average temperatures in a high range of 80°F (26.7°C) to 88°F (31.1°C). Many days experience the mercury crossing the 90°F (32.2°C) and a few days hit 95°F (35°C). Weather in August »

September is a transitional month with the summer heat still around and the autumn not yet in full bloom. Rain tapers down to 12" (304.8mm) with a drop in humidity as the sun returns on the horizon for a daily 6 hours. Weather in September »

October brings the pleasant autumn season with the retreat of the rain, drop in humidity and cooler temperatures. The summer heat subsides as the temperatures see a gradual drop to average around 74°F (23.3°C) to 86°F (30°C). Weather in October »

November is one of the best months with no rain or storms and pristine weather. The average temperatures of 67°F (19.4°C) to 75°F (23.9°C) are in the temperate zone of most western travelers, and the tourist numbers swell in Hong Kong. Weather in November »

December is the least humid month of the year at 68% with mostly clear skies, and transitions to the mild winter with a gradual drop in temperatures. Average high temperatures are around a mild 68°F (20°C) while average low temperatures drop to a comfortable 60°F (15.6°C). Weather in December »