Hong Kong Hong Kong Weather in May — Climate Guide
May in Hong Kong is Warm humid
May is Warm humid for Hong Kong.
May is full summer transition — 28°C/23°C, humidity 84%, rain heavy. **Plum rain (mei yu)** spells dominate — sudden downpours. Beach season begins at Repulse Bay. Mango season starts (Hong Kong-style mango sago + Yellow Mountain mangoes).
Travel score
Wet season + heat + Korean Children's Day + Buddha's Day
May Weather at a Glance
May averages 82°F / 28°C highs and 73°F / 23°C lows — wet season starts. Humidity 84% + 12 rainy days, 290mm (year's wettest). UV 11+ peak. 4 hours of sunshine.
May Travel Advice
Short sleeves + shorts + SPF 50 + folding umbrella. May 1 Labor Day + Korean Children's Day + Buddha's Day 5-day weekend. May Bun Festival (Cheung Chau, 1779, every May, traditional bun festival) signature. May 22 Vesak Day (Buddha's Birthday, public holiday).
Flying In from Overseas
Korean Children's Day + Buddha's Day 1-week 1.5x — Asia-Hong Kong $490-840 round-trip. Late May (post-holiday) is the value window.
May Pricing Trends
Holiday week 1.5x — TST 3-star $210-350/night. Late May normalizes to $125-225.
Hong Kong May Weather Stats
Avg High
28°C
Avg Low
23°C
Rainy Days
12
290mm total
Sunshine
4.5h
Daily avg
Humidity
84%
Hot humid
UV Index
9
Very high
Wind
12 km/h
Gusts 24
Sea Temp
25°C
Avg water temp
Crowds
Moderate
At attractions
May Sunrise & Sunset
Air Quality
PM2.5
32 μg/m³
PM10
50 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
31°C
Nighttime
24°C
Humidity and wind affect how the actual temperature feels.
Wind
12 km/h
Max gust 24 km/h
Activities Recommended for May
May Travel Pros & Cons
Pros
- Beach season begins (Repulse Bay)
- Mango season starts
- Outdoor pools open at hotels
Cons
- Heavy plum rain spells
- Humidity oppressive
- First typhoons possible last week
May Events & Festivals
- Labour Day (May 1)
- Buddha's Birthday (variable, May)
- Mango season begins
Hong Kong in May — Full Picture
May is full summer transition — 28°C/23°C, humidity 84%, rain heavy. **Plum rain (mei yu)** spells dominate — sudden downpours. Beach season begins at Repulse Bay. Mango season starts (Hong Kong-style mango sago + Yellow Mountain mangoes).
What to Wear & What to Pack
Hot + very humid — t-shirts + shorts + sandals. Light cardigan for AC (mall AC is freezing). Strong sunscreen SPF 50.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current24°C
19.3°C
9.7/mo
Summer (Jun·Jul·Aug)
30.7°C
26°C
14/mo
Autumn (Sep·Oct·Nov)
27.3°C
22.3°C
7/mo
Winter (Dec·Jan·Feb)
18.7°C
14.7°C
3.7/mo
Hong Kong Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 18° | 14° | 3d·23mm | 4.5h | 73% | 4 | Moderate | Shoulder |
| 18° | 14° | 5d·50mm | 3.5h | 78% | 4 | Busy | Peak | |
| 20° | 16° | 7d·80mm | 3h | 82% | 5 | Moderate | Shoulder | |
| 24° | 19° | 10d·137mm | 3.5h | 84% | 7 | Moderate | Shoulder | |
| 28° | 23° | 12d·290mm | 4.5h | 84% | 9 | Moderate | Shoulder | |
| 30° | 26° | 13d·392mm | 5h | 84% | 10 | Busy | Peak | |
| 31° | 26° | 14d·374mm | 6h | 82% | 10 | Very busy | Peak | |
| 31° | 26° | 15d·444mm | 6h | 81% | 10 | Very busy | Peak | |
| 30° | 25° | 12d·308mm | 5.5h | 78% | 8 | Busy | Shoulder | |
| October (Best) | 28° | 23° | 6d·100mm | 6h | 73% | 7 | Very busy | Peak |
| November (Best) | 24° | 19° | 3d·35mm | 5h | 70% | 5 | Busy | Shoulder |
| 20° | 16° | 3d·27mm | 4.5h | 70% | 4 | Very busy | Peak |
View Other Months
Hong Kong May Hotel Picks
Frequently Asked Questions
Is May a good time to visit Hong Kong?
Hong Kong in May is Warm humid. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Hong Kong in May?
Hong Kong May averages a high of 28°C and a low of 23°C.
Does it rain much in Hong Kong in May?
Hong Kong May averages 290mm of rainfall over about 12 rainy days.
What should I wear in Hong Kong in May?
Hot + very humid — t-shirts + shorts + sandals. Light cardigan for AC (mall AC is freezing). Strong sunscreen SPF 50.
What time are sunrise and sunset in Hong Kong in May?
Hong Kong May sunrise is 05:40 and sunset is 18:55, with 13h 15m of daylight.
What's the air quality like in Hong Kong in May?
Hong Kong May air quality (AQI) averages 70, rated Moderate. PM2.5 averages 32μg/m³.
What activities are recommended in Hong Kong in May?
In May, Hong Kong is great for Repulse Bay beach, Mango shaved ice, Cool indoor museums.
Is May peak season in Hong Kong?
Hong Kong May crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Hong Kong
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.