Verdict: Good month
Hong Kong Weather in May
May runs warm in Hong Kong, with daily highs around 27°C (81°F) and nights near 23°C (73°F). It's also the wet side of the calendar: rain falls on about 23 days, so build flexibility into plans. Overall, May is a solid month to visit Hong Kong.
Average high
27°C / 81°F
Average low
23°C / 73°F
Rain days
~23
Precipitation
313 mm
What to pack for Hong Kong in May
- Summer clothes, plus one light layer for air-con and evenings
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 23 days
- Quick-dry shoes — downpours are short but heavy
- Comfortable walking shoes — every guide on this site assumes you'll use them
May against the rest of the year
Warmest in Hong Kong: Jul (30°C / 86°F) · Coolest: Jan (19°C / 66°F) · Wettest: Jun (~29 rain days)
19°
13°
Jan
20°
14°
Feb
22°
18°
Mar
25°
20°
Apr
27°
23°
May
29°
26°
Jun
30°
26°
Jul
29°
26°
Aug
29°
25°
Sep
27°
22°
Oct
24°
19°
Nov
20°
13°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)