Halong Bay · AutumnMonth summary
Halong Bay weather in October
✅ Good
🌡️ Temperature min / max
23°C – 28°C
🌧 Rainy days
38% of days
☀️ Sunshine
10.5h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.0/10
📅 📅 Best month
November (8.2/10)
Quick decision
Should you visit Halong Bay in October?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: October is a good time to visit Halong Bay. November remains slightly better (+0.2 pts).
By trip type
Halong Bay in October by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in October
🎯 Water at 25°C and lively beaches — October is peak swimming season in Halong Bay Autumn in Halong Bay is often underrated: 28°C, golden light and declining crowds. An interesting window. Expect rain on 38% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if November (8.2/10) remains theoretically better.
Browse by month
All months for Halong Bay
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 16°C | 20°C | 28% | 1.5 | 6.7h | 7.2/10 |
| 🌤️ February | 16°C | 21°C | 29% | 1.7 | 5.3h | 7.2/10 |
| 🌤️ March | 19°C | 24°C | 34% | 1.4 | 6.0h | 7.4/10 |
| 🌤️ April | 22°C | 26°C | 41% | 2.7 | 9.2h | 7.7/10 |
| ⛅ May | 25°C | 29°C | 63% | 5.8 | 10.8h | 7.3/10 |
| ⛅ June | 27°C | 31°C | 77% | 8.8 | 10.5h | 7.0/10 |
| ⛅ July | 27°C | 31°C | 80% | 10.4 | 11.0h | 7.0/10 |
| 🌧️ August | 26°C | 30°C | 87% | 14.3 | 9.2h | 6.3/10 |
| ⛅ September | 26°C | 30°C | 72% | 10.4 | 10.5h | 7.1/10 |
| 🌤️ October | 23°C | 28°C | 38% | 4.8 | 10.5h | 8.0/10 |
| 🌤️ November | 20°C | 26°C | 25% | 1.3 | 10.0h | 8.2/10 |
| 🌤️ December | 16°C | 22°C | 15% | 0.6 | 8.5h | 7.8/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In October, Halong Bay averages 28°C, 38% rainy days and 10.5h of sunshine per day. Overall weather score: 8.0/10.
See methodology →
Comparison
October vs November (best month)
The best month is November (score 8.2/10). Difference:
- 🌡️ Max temperature : -2°C
- 🌧 Rainy days : -13%
- ☀️ Sunshine : -0.5h/day
FAQ
FAQ — Halong Bay in October
Is October a good time to visit Halong Bay?
October is an excellent time to visit Halong Bay (score 8.0/10). With 28°C, 10.5h of sunshine and 38% rain, conditions are very favourable.
What to do in Halong Bay in October?
With 28°C and 10.5h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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Activities & tours
Activities and tours in Halong Bay
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