Weather: Hoi An — September
It's a rainy period, but great for indoor activities, museums, and lower prices.
☔ Climate Overview
September is a wet time to visit Hoi An. Hot conditions with temperatures reaching 31°C—stay hydrated and seek shade. This is one of the wettest months—waterproof gear is essential. Being off-peak, you'll find better deals and fewer crowds. Sea temperature of 31°C is perfect for swimming.
Based on weather comfort, crowds, prices, and activity options
31°C
27°C
24days
12.2h
Feels like 38°C / 32°C — humidity makes it feel warmer
358mm
8.9h/day
82%
Very Muggy7.2
Very High14 km/h (gusts 28)
31°C 🏊 Comfortable
Is September a good time to visit Hoi An?
It's a rainy period, but great for indoor activities, museums, and lower prices.
Now
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Air Quality
Travel Context
- CrowdsVery Quiet
- Travel Costs Shoulder Rates
Daylight
05:36
17:50
Visiting Hoi An in September: Pros & Cons
Pros
- Fewer crowds and better hotel deals
- Warm sea perfect for swimming and snorkeling
Cons
- Frequent rain may disrupt outdoor activities
- High humidity makes the heat feel oppressive
Things to Do in September
Events & Festivals
Recommended for This Weather
Hoi An Weather by Month
| Month | Avg High | Avg Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition |
|---|---|---|---|---|---|---|---|---|
| Jan | 24°C | 21°C | 18d (149mm) | 6.9h | 84% Very Humid | 4.4 Moderate | | Wet |
| Feb | 25°C | 21°C | 14d (98mm) | 8.2h | 87% Very Humid | 5.8 High | | Excellent |
| Mar | 27°C | 23°C | 9d (80mm) | 10h | 88% Very Humid | 7.6 Very High | | Excellent |
| Apr | 29°C | 25°C | 7d (91mm) | 10.6h | 85% Very Muggy | 8.7 Very High | | Excellent |
| May | 32°C | 27°C | 14d (103mm) | 10.8h | 82% Very Muggy | 9 Very High | | Excellent |
| Jun | 34°C | 28°C | 15d (111mm) | 11.2h | 76% Muggy | 9.1 Very High | | Wet |
| Jul | 33°C | 28°C | 16d (99mm) | 10.6h | 75% Muggy | 8.6 Very High | | Wet |
| Aug | 33°C | 28°C | 18d (138mm) | 10.2h | 75% Muggy | 8.5 Very High | | Wet |
| Sep Current | 31°C | 27°C | 24d (358mm) | 8.9h | 82% Very Muggy | 7.2 Very High | | Wet |
| Oct | 28°C | 25°C | 28d (718mm) | 6.7h | 85% Very Humid | 4.9 Moderate | | Wet |
| Nov | 27°C | 24°C | 23d (498mm) | 7h | 85% Very Humid | 4.4 Moderate | | Wet |
| Dec | 24°C | 22°C | 27d (377mm) | 5.2h | 85% Very Humid | 3.3 Moderate | | Wet |
Hoi An
Lantern-lit ancient town with Lantern-lit old town and Japanese Covered Bridge, tailor shops, beaches, and riverside charm.
View Full Destination Guide
What to Pack for September
Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.
🎒Personalized Packing List
Tell us about your trip and we'll create a custom packing list based on the weather.
Your Packing List
📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health
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Frequently Asked Questions
Is September a good time to visit Hoi An?
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What should I pack for Hoi An in September?
Does it rain a lot in Hoi An in September?
Can you swim in Hoi An in September?
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Is September peak season in Hoi An?
More Hoi An Guides
Best Time to Visit
Coming soon
Things to Do
Coming soon
Where to Stay
Best neighborhoods and hotel recommendations
Cost & Budget
Daily costs, money-saving tips, and budget breakdown
Itineraries
Coming soon
Overview
Complete travel guide for Hoi An: top things to do, itineraries, and typical costs.