September · China
Best time to visit Hangzhou in September Weather, crowds & prices
Weather in Hangzhou in September
Average temperature 25°C, 121 mm of rain, about 21 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
5.8/10
Ranked #8 of 12 months
- Avg temp
- 25°C
- Rainfall
- 121 mm
- Humidity
- 81%
- Days with 6h+ sun
- 21
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $$ · Moderate Cost ($$)
September in Hangzhou scores 5.8/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 25°C, 121 mm of rain, and roughly 21 days with 6+ hours of sunshine this month.
Hangzhou's West Lake, stone causeways, and Longjing tea hills have drawn visitors since the Song dynasty.
September in Hangzhou — workable with trade-offs
September averages 25°C (78°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Monthly rainfall reaches 121 mm — wet for this destination — but about 21 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 5.8/10 here, 8th of 12 months, against 8.6/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Figure on mid-season pricing, with crowds are light for this destination.
Flexible dates? October scores 2.8 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Hangzhou in September?
- In September, Hangzhou averages 25°C, 121 mm of rain, and about 21 days with 6+ hours of sunshine. Its climate-comfort score is 5.8/10.
- Is September a good time to visit Hangzhou?
- September earns a 5.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Hangzhou in September?
- Expect about 121 mm of rain in September. Average humidity is 81% and there are about 21 days with 6+ hours of sunshine.
Curated in Hangzhou
Tickets & experiences
Things to do in Hangzhou
Hangzhou, China. Live activities and tours from GetYourGuide, matched to this destination.