Hong Kong Weather Season-by-Season

Hong Kong, China. Hennessy Road, Causeway Bay.
••• 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 sub-tropical climate, the city does have four distinct seasons:

Fall

We start with Hong Kong weather in fall (September - Mid-December), as this 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.

Clothes

T-Shirt and shorts weather for most of the season, although you're advised to bring a sweater for evenings, especially towards the end of fall.

Average Temp and Rainfall

The average temperature during fall is 24C (75F). At just 20-30mm, rainfall is very light and there are few rainy days, especially toward the end of the year. The lack of rainfall means you can probably ignore our What to Do in Hong Kong When It Rains article as the skies are for the most part cloud free.

Average Humidity

Humidity between September and December starts at an average of 83% dropping to 74%. This sees humidity discomfort move from medium to low. You can find out more about what these numbers mean in our Average Hong Kong Humidity article, which breaks down the numbers month-by-month and explains the ratings.

Winter

Winter weather in Hong Kong (Mid-December - 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 much more enjoyable than the hot and sticky summers.

Clothes

Sweaters will be needed for most days and a light jacket or coat will be needed for evenings. Seemingly the 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 Temp and Rainfall

Temperatures never plummet to bone-chilling and you can expect 17C or (63F). Rainfall is reasonably uncommon in winter, averaging 30-40mm, and whole weeks can be effectively water free. We have an article on What to Do in Hong Kong When It Rains but it's unlikely you'll even need to reach for your umbrella.

Average Humidity

Humidity between December and February ranges from an average of 74% rising to 82%.

This is one of the best times to visit Hong Kong with discomfort level from humidity low. if you want to find out more about the humidity, check out our Average Hong Kong Humidity article, which breaks down the numbers month-by-month and explains the ratings.

Month-by-Month Links

Find out exactly what to expect from the winter weather with our month-by-month guide, including advice and average temperature and rainfall. This can be helpful in planning exactly what you need to pack and in planning your activities.

Spring

Accompanying spring's warmer weather is a raft of rain and showers and steamy humidity. Spring weather in Hong Kong (March - 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.

Clothes

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 Temp and Rainfall

Temperatures rocket through the spring, starting at around 20C, (68F) until they hit the mid 30s (86F) towards summer. Rainfall is equally spectacular, with an average of 90-120mm throughout the months of the season. With frequent and prolonged downpours, it's well worth preparing yourself by looking at our Top Five Activities in Hong Kong When It Rains for some suggestions on where to go and what to do when the waterfall opens up.

Average Humidity

Between March and May Hong Kong's humidity really gets on the march. The start of the season is relatively mild at 83% humidity but by May has risen to 87%. It may seem like a subtle shift but it's an important one with discomfort levels shifting from low to medium to high. If 87% means absolutely nothing to you, check out our Average Hong Kong Humidity article, which breaks down the numbers month-by-month and tries to put them into context.

Month-by-Month Links

Find out exactly what to expect from the spring weather with our month-by-month guide, including advice and average temperature and rainfall.This can be helpful in planning exactly what you need to pack and in planning your activities.

Summer

Hong Kong weather in summer (June - 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 absolutely necessary.

Clothes

T-Shirts and shorts; although those who easily burn in the sun may want to consider long sleeves or high factor sun cream. Raincoats are useless, as the sun will melt you and it like a candle; pick up an umbrella in town.

Average Temp and Rainfall

The temperature averages at 28 for much of the summer and even at night doesn't drop significantly. Rainfall can be extremely erratic, but on average you can expect 80-100mm. Summer is famous for its showers which, while frequent, should only keep you indoors for short thirty-minute periods. Try our Top Five Activities in Hong Kong article for some suggestions on what to do when the heavens open.

Average Humidity

The sweaty months. Humidity is at an all time high throughout the summer, from 86%-87% and discomfort levels are high. What do these percentages actually mean? Find out in our Average Hong Kong Humidity article, which has a month by month record of the numbers and explanation.