Hangzhou in Fall
In fall (September, October and November), Hangzhou sees average daytime highs around 23°C and overnight lows near 16°C, with 221 mm of rain over about 25 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 31°C in early September to 15°C by late November. The sky is clear or mostly clear about 36% of the time across fall, and the air most often feels dry.
Fall is Hangzhou's best season of the year to visit on our travel score. For the whole year in context, see Hangzhou's year-round climate.
- Avg daytime high
- 23°C
- 2nd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 221 mm
- 25 wet days
- Avg wind
- 9 km/h
- Travel score
- 6.3
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Hangzhou in Fall
Over the season highs ease from about 31°C in early September to 15°C by late November.
A typical fall day in Hangzhou reaches about 23°C and drops to 16°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Hangzhou
Once humidity and wind are folded in, fall brings about 11 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Hangzhou weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 9° / 2° | 80 | 10.4 | 1.6 | 10.3 | 1.7 |
| Feb | 11° / 4° | 73 | 9.9 | 1 | 10.9 | 2.7 |
| Mar | 16° / 8° | 119 | 13.5 | 0.2 | 11.8 | 4.4 |
| Apr | 22° / 13° | 131 | 12.1 | 0 | 12.7 | 6.0 |
| May | 27° / 18° | 157 | 12.2 | 0 | 13.5 | 6.1 |
| Jun | 29° / 22° | 303 | 16.2 | 0 | 13.9 | 4.5 |
| Jul | 34° / 26° | 173 | 12.9 | 0 | 13.8 | 2.8 |
| Aug | 33° / 26° | 141 | 14.8 | 0 | 13.1 | 3.0 |
| Sep | 29° / 22° | 98 | 10.1 | 0 | 12.2 | 5.6 |
| Oct | 24° / 16° | 59 | 6.3 | 0 | 11.3 | 7.4 |
| Nov | 18° / 10° | 65 | 8.5 | 0 | 10.5 | 5.9 |
| Dec | 12° / 4° | 59 | 7.5 | 0.4 | 10.1 | 3.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 36% of the time across fall.
Chance of precipitation in Fall
Hangzhou gets around 221 mm of rain over 25 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early September to 10 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.4 kWh/m².
Hazard calendar for Hangzhou
In fall, Hangzhou overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Hangzhou sits in the Pacific typhoon belt; the season peaks July–October.
Hangzhou's rainy season runs May–August, when most of the year's rain falls.
Is fall a good time to visit Hangzhou?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Hangzhou for sightseeing.
What to pack for Hangzhou in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Hangzhou sees daytime highs around 23°C and nights near 16°C. Pack light clothes. Worth having: rain gear. About 25 days see rain.
Sea temperature near Hangzhou in Fall
The nearest coast averages about 22°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 45 km away) is warmest in August at about 29°C and coldest in February near 7°C.
It's comfortable for a long swim from May 22 to Oct 29 — about 5.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 8 | 7 | 10 | 14 | 19 | 24 | 27 | 29 | 26 | 22 | 17 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Tropical | Warm | Refreshing | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 8 | Bracing |
| Feb | 7 | Bracing |
| Mar | 10 | Bracing |
| Apr | 14 | Bracing |
| May | 19 | Cool |
| Jun | 24 | Refreshing |
| Jul | 27 | Warm |
| Aug | 29 | Tropical |
| Sep | 26 | Warm |
| Oct | 22 | Refreshing |
| Nov | 17 | Cool |
| Dec | 12 | Bracing |
UV index in Hangzhou in Fall
Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hangzhou peaks around July 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 7 | 8 | 8 | 10 | 9 | 10 | 5 | 4 | 3 |
| Level | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | High |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 5 | Moderate |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Hangzhou in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Hangzhou is worst in December — around 39 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (August, 18 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Hangzhou's WHO annual average of 29.5 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 39 | 37 | 36 | 32 | 27 | 24 | 19 | 18 | 23 | 27 | 33 | 39 |
| Level | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 39 | Poor |
| Feb | 37 | Poor |
| Mar | 36 | Poor |
| Apr | 32 | Moderate |
| May | 27 | Moderate |
| Jun | 24 | Moderate |
| Jul | 19 | Moderate |
| Aug | 18 | Moderate |
| Sep | 23 | Moderate |
| Oct | 27 | Moderate |
| Nov | 33 | Moderate |
| Dec | 39 | Poor |
Where is Hangzhou?
Hangzhou sits at 30.3°N, 120.2°E, 12 m above sea level, in China. The nearest listed city is Pingyao, 22 km away.
Topography around Hangzhou
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hangzhou.
Within 3 km, the terrain around Hangzhou has only modest variations in elevation — a maximum elevation change of 28 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,634 m.
The land around Hangzhou is covered by artificial surfaces (77%) within 3 km, artificial surfaces (48%) and trees (26%) within 16 km, and trees (51%) and cropland (22%) within 80 km.
China travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / I
- 220 V · 50 Hz
- Prices
- ≈ 47% of US
- price level, 2025
- GDP per capita
- $13,862
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Homicide rate
- 0.5
- per 100k, 2020
- Road deaths
- 17.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 464
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hangzhou (30.2936°, 120.1614°, elevation 12 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.