Hong Kong
Hong Kong
Long-term weather forecast
Long-term weather forecast
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Monthly weather forecast and Climate
Hong Kong, Hong Kong

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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 31.7°C (89.1°F) in the peak of July. High temperatures to the tune of 36.1°C (97°F) are not as rare, as the high humidity translates into abundant rain with thundershowers. Winters are mild as average low temperatures hardly drop below 14.4°C (57.9°F) and low temperatures below 10°C (50°F) 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 2413mm (95") over the year. Majority of the rain falls during 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.
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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 during the autumn and March to April during 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 15.6°C (60.1°F) to 26.7°C (80.1°F) with a reduced risk of tropical cyclones and relatively drier weather with clear skies.
Spring is warm with average temperatures in the range of 21.1°C (70°F) to 27.8°C (82°F) 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 35°C (95°F) on many days, but the humidity of more than 80% makes the weather uncomfortable. Low temperatures rarely drop below 25.6°C (78.1°F) 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 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 14.4°C (57.9°F). Average high temperatures are pleasant 18.3°C (64.9°F) accompanied by a few days of rain in the form of drizzle as the highs seldom rise above 21.1°C (70°F). Weather in January »

February is a mildly cold winter month with the average temperatures in a steady 15°C (59°F) to 18.9°C (66°F) 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 17.2°C (63°F) to 21.1°C (70°F) range. Northern cold winds are sometimes active in spring, but it is unusual for the thermometer to register sub 11.1°C (52°F) 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 29.4°C (84.9°F) or a low of 15.6°C (60.1°F), but the average temperatures are in a steady and pleasant range of 21.1°C (70°F) to 25°C (77°F). 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 23.9°C (75°F) to 28.3°C (82.9°F). Weather in May »

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

July is the hottest month of the year with the average high temperatures at a blistering 31.7°C (89.1°F). It is a time to avoid Hong Kong with its sweltering heat and humidity, as the temperatures rarely drop below the average low of 26.7°C (80.1°F). Weather in July »

August is a hot month during the summer season with the average temperatures in a high range of 26.7°C (80.1°F) to 31.1°C (88°F). Many days experience the mercury crossing the 32.2°C (90°F) and a few days hit 35°C (95°F). 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 304.8mm (12") 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 decline to average 23.3°C (73.9°F) to 30°C (86°F). Weather in October »

November is one of the best months with no rain or storms and pristine weather. The average temperatures of 19.4°C (66.9°F) to 23.9°C (75°F) 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 mild 20°C (68°F), while average low temperatures drop to a comfortable 15.6°C (60.1°F). Weather in December »
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