Hong Kong weather in May
May in Hong Kong: hot, soaked, with very humid — a fair time to visit.
#8 of 12 months in Hong Kong · #557 of 604 destinations to visit in May · comfort 56/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Hong Kong climate normals — May
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 230 mm / 9 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 8.6 h/day | |
| Daylight | 13.2 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 85 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Hong Kong in May — FAQ
- Is May a good time to visit Hong Kong?
- May in Hong Kong: hot, soaked, with very humid — a fair time to visit. It ranks #8 of 12 months for Hong Kong on SeasonMap's comfort score (56/100).
- What is the weather like in Hong Kong in May?
- In May, Hong Kong averages a daily high of 28.1°C and a low of 24.5°C, with about 229.6 mm of rain over roughly 21.4 rainy days.
- What is the air quality in Hong Kong in May?
- Hong Kong has a mean US Air Quality Index of about 85 in May.