Weather in Hong Kong: Climate, Seasons, and Average Monthly Temperature

Hennessy Road, Causeway Bay, Hong Kong
Ken Welsh / Getty Images

Hong Kong weather is famous for its unpredictability, and rain can turn to shine in a matter of seconds. The city also hosts some of the world's more extreme weather.

In no particular order, Hong Kong weather warnings can be issued for black rain, direct-hit typhoons, extreme heat, thunderstorms, and landslides, but don't be put off: The city is also blessed with gallons of sunshine for plenty of the year.

Despite having a humid, subtropical climate, the city does have four distinct seasons. Summer is hot and humid, with occasional typhoons. Winters are colder and typically sunny, but sometimes cloudy in the later months. Spring and autumn are sunny and mostly dry. While snowfall in Hong Kong is very rare, the city experiences extreme rain, nearly exceeding 18 inches in June.

Fast Climate Facts

  • Hottest Months: July and August (88 degrees Fahrenheit/31 degrees Celsius)
  • Coldest Month: December and January (68 degrees Fahrenheit/20 degrees Celsius)
  • Wettest Month: June (18 inches of rain)

Typhoons in Hong Kong

In Hong Kong, typhoon season peaks from May through early November, straddling both summer and fall. During this time, intense tropical cyclones (or typhoons) can make landfall, bringing with them intense winds, heavy rain, and flooding. Similar to hurricanes in the Western Hemisphere, typhoons can cause mass destruction in one fell swoop (depending on the wind speeds and precipitation). Luckily, Hong Kong is well prepared for such storms, with adequate storm warning protocols and infrastructure built to survive a typhoon's wrath. You should be safe in your hotel should a typhoon hit, but in rare instances, an evacuation may be necessary.

Fall in Hong Kong

Fall in Hong Kong (September to mid-December) is firmly the best time to land in Hong Kong. During fall, humidity is low, while temperatures are warming and skies are bright; it's a perfect time to be in the city and be outdoors without the crushing heat of summer. Fall weather in Hong Kong is also the most predictable, with sudden changes in the weather unlikely. It's relatively warm, rainfall is very light at less than an inch per month, and there are few rainy days, especially toward the end of the season. Humidity between September and December starts at an average of 83 percent, dropping to 73 percent. This sees humidity discomfort move from medium to low.

What to pack: It's T-shirt and shorts weather for most of the season, although you're advised to bring a sweater for evenings, especially toward the end of fall.

Average Temperatures by Month

September: 86 F (30 C)/78 F (26 C)

October: 82 F (28 C)/77 F (24 C)

November: 75 F (24 C)/68 F (20 C)

Winter in Hong Kong

Winter weather in Hong Kong (mid-December to February) is noticeably cooler than the city's other seasons but is nevertheless mild. Snow is unheard of in Hong Kong, and frost occurs only once or twice a year—don't expect a white Hong Kong Christmas. Crisp, clear days, with little rain, do make winter a viable time to visit Hong Kong, and are much more enjoyable to some visitors than the hot and sticky summers. Temperatures never plummet to bone-chilling, and rainfall is reasonably uncommon in winter, averaging just more than an inch per month with whole weeks effectively water free. Humidity between December and February ranges from 74 percent to 82 percent. This is one of the best times to visit Hong Kong with discomfort level from humidity low.

What to pack: Sweaters are necessary for most days, and a light jacket or coat will be needed for evenings. Seemingly some locals don't notice that it isn't really winter outside and will wrap themselves up like Polar Bears regardless. Ignore them; gloves and scarves are only needed by those who plan to stand in the freezer section of the supermarket for the duration of their holiday.

Average Temperatures by Month

December: 68 F (20 C)/61 F (16 C)

January: 66 F (19 C)/59 F (15 C)

February: 66F (19 C)/59 F (15 C)

Spring in Hong Kong

Accompanying spring's warmer weather is a raft of rain and showers and steamy humidity. Spring weather in Hong Kong (March to May), can bring wonderfully warm days with clear blue skies, or it can bring apocalyptic downfalls, resulting in black rainstorm warnings. It's so unpredictable that the only way to get a weather forecast is to look out the window. Humidity is relatively mild at the start of the season, but as spring becomes summer, you'll feel like a lobster in a pot. Temperatures rocket through the spring, starting at around 70 degrees Fahrenheit (21 degrees Celsius) until they rise above 80 degrees Fahrenheit (28 degrees Celsius) toward summer. Rainfall is equally spectacular, with an average of 36 inches throughout the months of the season. Between March and May, Hong Kong's humidity gets on the march. The start of the season is relatively mild at 83 percent humidity but by May it has risen to 87 percent. It may seem like a subtle shift, but it's an important one with discomfort levels shifting from low to medium to high.

What to pack: Goggles and a snorkel might be the best advice—but seriously, some effective waterproofs are a must, as well as shorts and T-shirts for warmer days and sweaters for evenings.

Average Temperatures by Month

March: 70 F (21 C)/63 F (17 C)

April: 77 F (25 C)/70 F (21 C)

May: 83 F (28 C)/75 F (24 C)

Summer in Hong Kong

Hong Kong weather in summer (June to August) can seem like swimming through soup. The sun beats down, the air is laced with humidity, and shirts become tissues to stop sweat. A stroll around town can leave you looking like you've just completed a marathon. Added to this misery is the constant threat of summer showers, thunderstorms, and Hong Kong typhoons. Summer weather in Hong Kong is best avoided, unless necessary. The temperature gets to 86 degrees Fahrenheit (30 degrees Celsius) for much of the summer and even at night doesn't drop significantly. Rainfall can be extremely erratic, especially in June, Hong Kong's wettest month of the year. Summer is famous for its showers which, while frequent, should only keep you indoors for short 30-minute periods. Humidity is at an all-time high throughout the summer, from 83 percent and discomfort levels are high.

What to pack: Bring plenty of T-shirts and shorts, although those who easily burn in the sun may want to consider long sleeves or high factor sunscreen. A raincoat is useless, as the sun will melt you and it like a candle; pick up an umbrella in town.

Average Temperatures by Month

June: 86 F (30 C)/82 F (26 C)

July: 88 F (31 C)/82 F (27 C)

August: 88 F (31 C)/82 F (27 C)

Average Monthly Temperature, Rainfall, and Daylight Hours
Month Avg. Temp. Rainfall Daylight Hours
January 70 F 0.7 inches 10 hours
February 73 F 2.3 inches 11 hours
March 73 F 3.9 inches 11 hours
April 77 F 2.4 inches 12 hours
May 86 F 2.2 inches 13 hours
June 86 F 9.0 inches 13 hours
July 88 F 3.6 inches 13 hours
August 88 F 8.0 inches 13 hours
September 86 F 6.7 inches 12 hours
October 82 F 2.2 inches 12 hours
November 77 F 3.7 inches 11 hours
December 70 F 0.9 inches 11 hours
Article Sources
TripSavvy uses only high-quality, trusted sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial policy to learn more about how we keep our content accurate, reliable and trustworthy.
  1. Weather Atlas. Hong Kong. November 2020.