September 25 is statistically one of the best days of the year in Shanghai. With minimal rain risk (14%) and pleasant highs of 27°C, it's ideal for outdoor adventures. As it's peak season for Shanghai, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Shanghai
Currency
CNY
¥ Chinese yuan
Language
Chinese
Driving
Right side
Connect
Shanghai's area code for landlines is21,...
Safety
Moderate Safety
GPI: 2.01
Shanghai Weather Forecast for September 25
"Warm & Sunny. Expect average highs of 26.6°C. 14% chance of rain."
What to Wear in Shanghai in September
Based on historical data for September 25, Shanghai typically experiences temperatures between 20.4°C and 26.6°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (14% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Shanghai
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.6°C
Daytime Peak
Average Low
20.4°C
Nighttime Low
Feels Like
27.8°C
☀️ Minor difference
Rain Chance
14%
Avg 0.7mm if it rains
Cloud Cover
55%
Light drizzle
Pressure
1014.9 hPa
Low volatility
Shanghai Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 91% 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
🔴 25 min to burn
Type III-IV
🟡 38 min to burn
Type V-VI
🟢 63 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
22.6°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in China
Flight Traffic
High
90/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~2,817
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Shanghai
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:44
☀️ Noon
11:47
🌇 Sunset
17:49
⏱️ Daylight
12h 4m
Wind Speed
15.6 km/h
Gentle breeze
Sunshine
8.6 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Shanghai
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 Shanghai
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.
Very unhealthy. Avoid outdoor activities. Wear N95 mask if you must go out.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
Typhoon Risk
Year-round risk present
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Shanghai on September 25 averages 26.6°C with a 14% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Shanghai Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Shanghai Worth Visiting on September 25?
Planning a trip to Shanghai 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 26.6°C with a 14% historical precipitation risk.
✈️ Travel Logistics: Approximately 2,817 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 10 vaccinations are recommended for China, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 27.4°C (tropical bath). Wave conditions are generally fun waves with heights around 0.69m.
📊 Historical Extremes: The hottest September 25 recorded in the last 30 years saw temperatures hit 34.1°C in 2025, while the coldest dropped to 15.6°C in 2019.