September 25 is statistically one of the best days of the year in Hangzhou. With minimal rain risk (12%) and pleasant highs of 27°C, it's ideal for outdoor adventures. As it's peak season for Hangzhou, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Hangzhou
Currency
CNY
¥ Chinese yuan
Language
Chinese
Driving
Right side
Safety
Moderate Safety
GPI: 2.01
Hangzhou Weather Forecast for September 25
"Warm & Sunny. Expect average highs of 27.2°C. 12% chance of rain."
What to Wear in Hangzhou in September
Based on historical data for September 25, Hangzhou typically experiences temperatures between 19.4°C and 27.2°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (12% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Hangzhou
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
27.2°C
Daytime Peak
Average Low
19.4°C
Nighttime Low
Feels Like
30°C
🔥 Feels warmer
Rain Chance
12%
Avg 0.6mm if it rains
Cloud Cover
57%
Overcast
Pressure
1014.7 hPa
Low volatility
Hangzhou Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 97% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 09:30
16:00 - 17:00
Type I-II
🔴 26 min to burn
Type III-IV
🟡 39 min to burn
Type V-VI
🟢 65 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
23°C
Humid/Sticky
Heat Index
30°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in China
Flight Traffic
High
93/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~435
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Hangzhou
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:50
☀️ Noon
11:52
🌇 Sunset
17:54
⏱️ Daylight
12h 4m
Wind Speed
12.6 km/h
Gentle breeze
Sunshine
7.8 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Hangzhou
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Hangzhou
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Unhealthy. Everyone should reduce outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Hangzhou on September 25 averages 27.2°C with a 12% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Hangzhou Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 25) in other destinations
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📍 Is Hangzhou Worth Visiting on September 25?
Planning a trip to Hangzhou on September 25? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.2°C with a 12% historical precipitation risk.
✈️ Travel Logistics: Approximately 435 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 10 vaccinations are recommended for China, including COVID-19.
📊 Historical Extremes: The hottest September 25 recorded in the last 30 years saw temperatures hit 32.9°C in 2025, while the coldest dropped to 14.9°C in 2019.