September 27 sees frequent showers in Hanoi. Historical data shows a 49% chance of rain, so pack accordingly. Temperatures average 30°C. Expect a bustling atmosphere in Hanoi right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Hanoi
Currency
VND
₫ Vietnamese đồng
Language
Vietnamese
Driving
Right side
Connect
Most regular restaurants and cafés have ...
Safety
High Safety
GPI: 1.786
Hanoi Weather Forecast for September 27
"Warm & Sunny. Expect average highs of 29.8°C. 49% chance of rain."
What to Wear in Hanoi in September
Based on historical data for September 27, Hanoi typically experiences temperatures between 23.5°C and 29.8°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 49% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Hanoi
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29.8°C
Daytime Peak
Average Low
23.5°C
Nighttime Low
Feels Like
37.9°C
🔥 Heat index effect
Rain Chance
49%
Avg 6.1mm if it rains
Cloud Cover
64%
Moderate rain
Pressure
1009.6 hPa
Low volatility
Hanoi Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 95% 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
26.6°C
Humid/Sticky
Heat Index
37.9°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Vietnam
Flight Traffic
High
83/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~246
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Hanoi
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:47
☀️ Noon
11:49
🌇 Sunset
17:50
⏱️ Daylight
12h 2m
Wind Speed
11.2 km/h
Light breeze
Sunshine
7.3 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Hanoi
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Hanoi
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Unhealthy. Everyone should reduce outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Hanoi on September 27 averages 29.8°C with a 49% precipitation probability. Wedding/Outdoor Event Score: 78/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Hanoi Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 4
29.6°C • 39% rain
Score
85
October 2
29.9°C • 40% rain
Score
84
October 3
29.8°C • 40% rain
Score
84
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 27) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Hanoi Worth Visiting on September 27?
Planning a trip to Hanoi on September 27? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.8°C with a 49% historical precipitation risk.
✈️ Travel Logistics: Approximately 246 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Vietnam, including COVID-19.
📊 Historical Extremes: The hottest September 27 recorded in the last 30 years saw temperatures hit 33°C in 2016, while the coldest dropped to 21.9°C in 2019.