Hong Kong Weather in May
Hong Kong in May sees high temperatures, with highs around 29°C (84°F) and overnight lows of 25°C (77°F). With the rainy season in full effect, expect around 222 mm (8.7 in) of rainfall and regular showers throughout the month.
Rainfall in Hong Kong in May
Hong Kong is in the rainy season in May, with rain on around 15 days and an average of 222 mm (8.7 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Hong Kong in May
May in Hong Kong brings typical temperatures with highs around 29°C (84°F) and lows of 25°C (77°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Hong Kong in May
The city usually sees around 137 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).
Wind Speed in Hong Kong in May
Average wind conditions reach 2 m/s (4 knots) in May. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.
Average water temperature in May
With water at 25°C (77°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.For Hong Kong itself, January, February, March, October, November and December generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Hong Kong, check out our Hong Kong's climate page.
Hong Kong Temperature in May
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Water Temperature
25°C (77°F)
Chance of Rain
50%
Precipitation
222 mm (8.7 in)
Rainy days
15 days
Humidity
82%
Windspeed
2 m/s (4 knots)
Sunshine
137 hours
Percentage Sunshine
34%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hong Kong typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows typically ranging from 23°C (73°F) to 26°C (79°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Hong Kong in May
Browse day-by-day weather records for Hong Kong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hong Kong historical weather extremes in May
According to our 49 years of weather records for Hong Kong, the following extremes were recorded between 1976 and 2025.
- Hong Kong recorded its highest May temperature of 36°C (97°F) on May 31, 2023.
- The lowest daytime temperature in May was 20°C (68°F), recorded on May 4, 1981.
- Hong Kong registered its coldest May night on May 6, 1999, with temperatures dropping to 16°C (61°F).
Best Places in Hong Kong in May
Find out more about the weather in Hong Kong and which places have the best travel conditions in this month. See all of Hong Kong in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Hong Kong in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Expect water temperatures of around 25°C (77°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Hong Kong in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Hong Kong, check out our Hong Kong's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Hong Kong climate overview or explore weather in Hong Kong.
