October 16 is generally a great time to visit Halong Bay. While there is a slight chance of rain (29%), showers are usually brief. Expect comfortable 28°C weather. Halong Bay is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
View the full calendar
Essential Travel Info for Halong Bay
Currency
VND
₫ Vietnamese đồng
Language
Vietnamese
Driving
Right side
Safety
High Safety
GPI: 1.786
Halong Bay Weather Forecast for October 16
"Warm & Sunny. Expect average highs of 27.9°C. 29% chance of rain."
What to Wear in Halong Bay in October
Based on historical data for October 16, Halong Bay typically experiences temperatures between 22.9°C and 27.9°C. We recommend packing t-shirt, light clothing to stay comfortable. With a 29% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Halong Bay
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
27.9°C
Daytime Peak
Average Low
22.9°C
Nighttime Low
Feels Like
31.1°C
🔥 Feels warmer
Rain Chance
29%
Avg 2.9mm if it rains
Cloud Cover
57%
Overcast
Pressure
1013.1 hPa
Low volatility
Halong Bay Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 93% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 47 min to burn
Type III-IV
🟡 71 min to burn
Type V-VI
🟢 118 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
31.1°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Vietnam
Flight Traffic
High
80/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~20
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Halong Bay
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:47
☀️ Noon
11:38
🌇 Sunset
17:28
⏱️ Daylight
11h 40m
Wind Speed
15.9 km/h
Gentle breeze
Sunshine
8.5 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Halong Bay
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 Halong Bay
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Unhealthy for sensitive groups. Consider wearing a mask outdoors.
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, Halong Bay on October 16 averages 27.9°C with a 29% precipitation probability. Wedding/Outdoor Event Score: 95/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Halong Bay Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 22
27.4°C • 16% rain
Score
100
October 23
27.4°C • 15% rain
Score
100
October 19
27.7°C • 21% rain
Score
98
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 16) in other destinations
Rome
Italy
Barcelona
Spain
London
United Kingdom
Amsterdam
Netherlands
Prague
Czech Republic
🌍 Explore the same date in different destinations around the world
📍 Is Halong Bay Worth Visiting on October 16?
Planning a trip to Halong Bay on October 16? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.9°C with a 29% historical precipitation risk.
✈️ Travel Logistics: Approximately 20 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Vietnam, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 28.2°C (tropical bath). Wave conditions are generally fun waves with heights around 0.54m.
📊 Historical Extremes: The hottest October 16 recorded in the last 30 years saw temperatures hit 30.9°C in 2016, while the coldest dropped to 18.1°C in 2017.