Hong Kong Weather in May
Hong Kong · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Hong Kong sees average temperatures ranging from a low of 23.4°C (74.1°F) to a high of 26.9°C (80.4°F), with a mean of 25.0°C (77.0°F). Compared to the annual average of 22.5°C (72.5°F), this month is 2.5°C warmer than the yearly norm. Precipitation averages 313.1mm, making it approximately 118.0mm wetter than the monthly average of 196.0mm. The city receives an average of 8.2 hours of sunshine per day during May, with relative humidity averaging 89.3%. Wind speeds reach an average maximum of 18.2 km/h. For travelers, this month offers a temperature experience in Hong Kong, with wetter-than-average conditions compared to the rest of the year.
There's something about Hong Kong in autumn that the summer crowds never experience. October-November brings 25°C, low humidity, clear skies — and the city exhales after typhoon season. I hiked Dragon's Back in November and the South China Sea sparkled below. Summer is a different beast: 33°C with 90% humidity, the air thick enough to chew. Typhoons (July-September) are dramatic cultural events — shops shutter, signals fly, everyone watches the news. Lunar New Year (January-February) brings a festive energy despite the 16°C chill. Spring is humid and gloomy; autumn is the city's gift to itself.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 22.2°C (72.0°F) | 25.0°C (77.0°F) | 26.9°C (80.4°F) |
| Rainfall | 180.2mm | 313.1mm | 344.2mm |
| Sunshine | 8.2 hrs | 8.2 hrs | 8.4 hrs |
| Humidity | 86.2% | 89.3% | 89.9% |
| Wind | 19.0 km/h | 18.2 km/h | 19.4 km/h |
| Rainy Days | 20.2 | 26.4 | 29.8 |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Hong Kong in May, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Hong Kong in May?
The average temperature in Hong Kong during May ranges from 23.4°C (74.1°F) to 26.9°C (80.4°F), with a mean of 25.0°C (77.0°F).
How much does it rain in Hong Kong in May?
Hong Kong receives an average of 313.1mm of precipitation in May, spread across approximately 26.4 rainy days.
What should I pack for Hong Kong in May?
Based on May weather data, pack lightweight, breathable clothing, sunscreen, and a hat. Rain gear is essential — this month averages 313.1mm of precipitation.
Is May a good time to visit Hong Kong?
May is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Hong Kong
Cities with Similar May Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 22.32°, 114.17°. Timezone: Asia/Hong_Kong. Last updated: 2026-07-30.