SeasonScore
Hangzhou, China
Photo: Someone's Moving Castle · CC BY-SA 3.0

China

Hangzhou in May

🌷 Spring

Pleasant and some showers. Watch for hazy air.

🎒 Pack: compact umbrella or rain jacket · N95 mask for hazy days

Best months: May (8.1), Feb (6.9), Mar (6.9)

‹
Every month at a glanceTap a month to open it
›

Why May scores 8.1What goes into the score

How it works
🌡️ 27° / 18°C🌧️ 127 mm💧 dew pt 17°🍃 PM2.5 41
  • Weather comfort8.7
    • ✓Comfortable temperatures (27°C highs / 18°C lows)
    • ✓Slightly humid (dew point 16.8°C)
    • !Wet: ~127 mm rain, ~5 heavy-rain days
  • Air quality5.0
    • !Unhealthy for sensitive groups (PM2.5 ~41 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut May side by side with another month
MayFeb
Score8.1 Very good6.9 Good
Season🌷 Spring🧥 Winter
High / low27° / 18°11° / 4°
Rain127 mm90 mm
Humiditydew pt 17°dew pt 3°
PM2.541 µg/m³75 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Hangzhou weather-station normals. Rainfall: Hangzhou weather-station normals (national met service).

Holidays & crowdsMay 2027

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • Labor Day 1–4 May · 4 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Hangzhou

  • Snowy daysTypical dates
    Snow likely Dec–Feb (most in Jan: ~4 days)

    Average number of days with snowfall at Hangzhou.

    Source: Hangzhou weather-station normals (national weather service, via Wikipedia climate table)

Explore HangzhouEvents, sights, food & souvenirs

Check event dates locally

The capital of Zhejiang province in eastern China, famous for West Lake, Longjing green tea, silk and classical gardens.

Events in May
Labor Day Golden WeekAcross China

A peak domestic travel week with crowds at every major site.

Coming up later

Lotus season on West LakeDate variesUsually June to August

Lotus flowers bloom across parts of the lake.

Why go: Summers are hot and humid; visit early in the day.

Where: West Lake, especially Quyuan Fenghe

Osmanthus seasonDate variesUsually September to October

Osmanthus trees bloom with a sweet scent.

Why go: Osmanthus-flavoured sweets and drinks appear at this time.

Where: Manjuelong and around West Lake

Qiantang River tidal boreDate variesLunar calendar - peaks around the 18th day of the 8th month, usually September or October

One of the world's largest tidal bores surges up the river.

Why go: Follow official viewing areas; the bore can be dangerous.

Where: Qiantang River, with famous viewing at Yanguan in Haining