What is the weather like in Hangzhou in September?

Expect temperatures between 21°C and 29°C with 28% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Hangzhou in September?

Hangzhou in September scores 55/100 based on 30 years of climate data. Worthwhile timing with some trade-offs.

Who should visit Hangzhou in September?

September in Hangzhou is ideal for: Cultural tourists, Business travelers.

Hangzhou Weather in September | 30-Year Forecast

Avg High

29°C

Hottest around day 6

Avg Low

21°C

Coolest around day 24

Rainy Days

19days

28% avg rain chance

Sunshine

8hrs/day

Autumn season

Essential Travel Info for Hangzhou

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

CNY

¥ Chinese yuan

Language

Chinese

Driving

Right side

Safety

Moderate Safety

GPI: 2.01

Travel Intelligence

Exclusive flight analytics & health data for Hangzhou

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Well Connected

71/ 100

Traffic Index

Popular destination

Peak Daily Arrivals

slots per day

Peak

Aug

Low

Apr

Monthly Traffic Distribution

440

Jan

468

Feb

453

Mar

340

Apr

341

May

446

Jun

456

Jul

468

Aug

435

Sep

420

Oct

392

Nov

451

Dec

Traffic Level

Low Season

Key Connections

Shenzhen Bao'an (SZX)

Guangzhou Baiyun (CAN)

Beijing Capital (PEK)

Beijing Daxing (PKX)

Chongqing Jiangbei (CKG)

Health & Safety Advisory

CDC travel health recommendations

10 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Chikungunya

There is anoutbreak of chikungunyain Guangdong Province, China.Chikungunya vaccinationis recommended for people traveling to an area with a chikungunya outbreak.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to China.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers of all ages traveling to China.

Japanese Encephalitis

Recommended for travelers whoAre moving to an area with Japanese encephalitis to liveSpend long periods of time, such as a month or more, in areas with Japanese encephalitisFrequently travel to areas with Japanese encephalitisConsider vaccination for travelersSpending less than a month in areas with Japanese encephalitis but will be doing activities that increase risk of infection, such as visiting rural areas, hiking or camping, or staying in places without air conditioning, screens, or bed netsGoing to areas with Japanese encephalitis who are uncertain of their activities or how long they will be thereNot recommended for travelers planning short-term travel to urban areas or travel to areas with no clear Japanese encephalitis season.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

+4 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Hangzhou?

👌Worthwhile timing with some trade-offs(55/100)

Short Answer

Popular September in Hangzhou offers 29°C and 28% rain chance - excellent conditions that attract maximum visitors. Book 3-6 months ahead for best rates.

Decision Factors

Oppressive heat and humidity

28.6°C with 79% humidity - challenging conditions

Vaccinations required

Yellow Fever

Poor air quality: Unhealthy

Unhealthy. Everyone should reduce outdoor activities.

Peak tourist season

93% of annual peak - expect crowds and peak prices

Health precautions needed

Be aware of: Leptospirosis, Schistosomiasis, Crimean-Congo Hemorrhagic fever

Exceptional dining scene

77 Michelin-listed restaurants

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
79% humidity creates difficult conditions
🌡️
Heat-sensitive visitors
33°C feels-like temperature creates discomfort

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Hangzhou in September averages 29°C with 28% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Hangzhou in September

What are the temperatures in Hangzhou in September?

Daytime highs average 29°C, nights drop to 21°C. Temperatures remain fairly consistent.

How many rainy days in Hangzhou in September?

Expect around 19 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Hangzhou in September?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is September peak season in Hangzhou?

This is shoulder season—moderate prices and manageable crowds.

Hangzhou Weather in September

Hangzhou September Weather Calendar