Historical data suggests significant rain risk (73%) on August 17. If you seek sun, consider a different date. Bring rain gear! Hanoi is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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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 August 17
"Rainy & Overcast. Expect average highs of 31°C. 73% chance of rain."
What to Wear in Hanoi in August
Based on historical data for August 17, Hanoi typically experiences temperatures between 25.3°C and 31°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 73% 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
31°C
Daytime Peak
Average Low
25.3°C
Nighttime Low
Feels Like
43.5°C
🔥 Heat index effect
Rain Chance
73%
Avg 10.1mm if it rains
Cloud Cover
83%
Moderate rain
Pressure
1004.2 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 90% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 23 min to burn
Type III-IV
🟡 35 min to burn
Type V-VI
🟢 58 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
28.6°C
Humid/Sticky
Heat Index
43.5°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Vietnam
Flight Traffic
High
97/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~286
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Hanoi
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:37
☀️ Noon
12:02
🌇 Sunset
18:27
⏱️ Daylight
12h 49m
Wind Speed
11.2 km/h
Light breeze
Sunshine
7.3 hrs
Direct Sun (Cloud-free)
Humidity
87%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Hanoi
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 Hanoi
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
Tourist Crowds
🔴 Very 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 August 17 averages 31°C with a 73% precipitation probability. Wedding/Outdoor Event Score: 50/100."
— 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
August 10
32°C • 64% rain
Score
65
August 19
31.2°C • 66% rain
Score
58
August 20
31.4°C • 67% rain
Score
57
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 17) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Hanoi Worth Visiting on August 17?
Planning a trip to Hanoi on August 17? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31°C with a 73% historical precipitation risk.
✈️ Travel Logistics: Approximately 286 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 August 17 recorded in the last 30 years saw temperatures hit 33.9°C in 2023, while the coldest dropped to 24.2°C in 2020.