Vietnam Da Nang Weather in September — Climate Guide
September in Da Nang is moderate
September is moderate for Da Nang.
September begins Da Nang's rainy season — 250mm rainfall + 12 rainy days mean half the month has rain, and typhoon season peaks (1-2 storms per month, Vietnamese Meteorological Agency tracking essential). Hotels drop 30-50% from peak. Hoi An flooding becomes a real risk (lunar 14th + heavy rain combinations). Mid-Autumn Festival (Tet Trung Thu, varies lunar) brings beautiful lantern displays in Hoi An — the alternative to Vietnamese Lunar New Year for travelers seeking cultural authenticity without Tet closures. Korean Chuseok (varies, mid-Sep to early Oct) drives a 1.5-2x fare spike during the holiday week. Pre-Chuseok + post-Chuseok are the year's best Korean-tourist value windows. Travelers willing to accept rain risk for 30-50% hotel discount and crowd-free sights should consider September seriously.
Travel score
Rainy season + typhoon season + avoid Korean Chuseok week for budget
September Weather at a Glance
September in Da Nang averages 88°F / 31°C highs and 75°F / 24°C lows — rainy season properly begins. Humidity 80% + 6 hours of sunshine. 12 rainy days with 250mm rainfall (rain accelerating). Sea temperature 82°F / 28°C. Typhoon season peaks (1-2 storms per month) — track Vietnam Meteorological Agency. Sunrise 5:45 AM, sunset 5:55 PM.
September Travel Advice
Waterproof jacket + folding umbrella + SPF 50 + walking shoes (quick-dry). Track typhoon warnings + avoid outdoor activity. My Khe Beach waves higher + swimming risky. Recommend indoor itineraries: Hoi An + Ba Na Hills + Marble Mountains + Cham Museum. September 2 Vietnam National Day (Independence Day) public holiday — 5-day weekend with Vietnamese domestic surge.
Flying In from Overseas
Korean Chuseok (varies by year, mid-September to early October) drives 1.5-2x fare spikes — Asia-Da Nang $540-940 from Seoul. Post-Chuseok is the value window. Pre-Chuseok early September (before holiday week) is one of the year's best Korean-tourist value windows.
September Pricing Trends
Rainy off-season — My Khe Beach 4-star $140-260/night. Chuseok week only sees temporary spike. 5-star $250-500. InterContinental Sun Peninsula $400-700 (pre/post Chuseok). Flights from Seoul $250-450 round-trip pre/post Chuseok.
Da Nang September Weather Stats
Avg High
31°C
Avg Low
24°C
Rainy Days
12
250mm total
Sunshine
6h
Daily avg
Humidity
80%
high
UV Index
8
Very high
Wind
10 km/h
Gusts 30
Sea Temp
28°C
swimming rough
Crowds
Quiet
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
16 μg/m³
PM10
26 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
35°C
Nighttime
25°C
Humidity and wind affect how the actual temperature feels.
Wind
10 km/h
Max gust 30 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Hotels 30-50% cheaper
- Lowest crowds of year (outside Chuseok)
- Mid-Autumn Festival lanterns magical
- Korean Chuseok value windows pre/post
Cons
- 250mm rain
- Storm/typhoon risk
- Sea rougher
- Some sites closed during typhoon warnings
- Hoi An flooding possible
September Events & Festivals
- Mid-Autumn Festival (Tet Trung Thu, lunar 15th of month 8 — varies)
- Vietnamese Independence Day Sep 2 (5-day weekend)
- Korean Chuseok (varies, mid-Sep to early Oct)
- Monsoon begins
Da Nang in September — Full Picture
September begins Da Nang's rainy season — 250mm rainfall + 12 rainy days mean half the month has rain, and typhoon season peaks (1-2 storms per month, Vietnamese Meteorological Agency tracking essential). Hotels drop 30-50% from peak. Hoi An flooding becomes a real risk (lunar 14th + heavy rain combinations). Mid-Autumn Festival (Tet Trung Thu, varies lunar) brings beautiful lantern displays in Hoi An — the alternative to Vietnamese Lunar New Year for travelers seeking cultural authenticity without Tet closures. Korean Chuseok (varies, mid-Sep to early Oct) drives a 1.5-2x fare spike during the holiday week. Pre-Chuseok + post-Chuseok are the year's best Korean-tourist value windows. Travelers willing to accept rain risk for 30-50% hotel discount and crowd-free sights should consider September seriously.
What to Wear & What to Pack
Hot + heavy rain. Light + waterproof everything. Quick-dry t-shirts, waterproof rain jacket, plastic phone case, waterproof bag for valuables. Closed shoes for sudden street flooding. Swimwear still works in calm sea windows.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
29°C
22.7°C
4.3/mo
Summer (Jun·Jul·Aug)
33°C
25°C
8.7/mo
Autumn (Sep·Oct·Nov)
Current29°C
23°C
13.3/mo
Winter (Dec·Jan·Feb)
25.3°C
19.7°C
7.7/mo
Da Nang Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 25° | 19° | 8d·100mm | 5h | 80% | 6 | Moderate | Shoulder | |
| February (Best) | 26° | 20° | 4d·30mm | 6h | 78% | 7 | Busy | Peak |
| March (Best) | 27° | 21° | 4d·25mm | 7h | 78% | 8 | Busy | Peak |
| April (Best) | 29° | 23° | 4d·30mm | 8h | 78% | 10 | Very busy | Peak |
| 31° | 24° | 5d·50mm | 8h | 78% | 11 | Busy | Peak | |
| 33° | 25° | 7d·80mm | 8h | 75% | 11 | Very busy | Peak | |
| 33° | 25° | 8d·90mm | 8h | 76% | 11 | Very busy | Peak | |
| 33° | 25° | 11d·130mm | 7h | 78% | 10 | Busy | Shoulder | |
| 31° | 24° | 12d·250mm | 6h | 80% | 8 | Quiet | Low season | |
| 29° | 23° | 15d·530mm | 5h | 83% | 6 | Quiet | Low season | |
| 27° | 22° | 13d·360mm | 5h | 82% | 6 | Quiet | Low season | |
| 25° | 20° | 11d·220mm | 5h | 80% | 5 | Moderate | Shoulder |
View Other Months
Da Nang September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Da Nang?
Da Nang in September is moderate. Tourist crowds are quiet and flight/hotel prices are low season.
What's the average temperature in Da Nang in September?
Da Nang September averages a high of 31°C and a low of 24°C.
Does it rain much in Da Nang in September?
Da Nang September averages 250mm of rainfall over about 12 rainy days.
What should I wear in Da Nang in September?
Hot + heavy rain. Light + waterproof everything. Quick-dry t-shirts, waterproof rain jacket, plastic phone case, waterproof bag for valuables. Closed shoes for sudden street flooding. Swimwear still works in calm sea windows.
What time are sunrise and sunset in Da Nang in September?
Da Nang September sunrise is 05:45 and sunset is 17:55, with 12h 10min of daylight.
What's the air quality like in Da Nang in September?
Da Nang September air quality (AQI) averages 45, rated Good. PM2.5 averages 16μg/m³.
What activities are recommended in Da Nang in September?
In September, Da Nang is great for Mid-Autumn Festival Hoi An lanterns, Indoor: Cham Museum, spa, Hoi An (flood risk check).
Is September peak season in Da Nang?
Da Nang September crowds are quiet and prices are low season. You can travel relatively comfortably without long queues.
Best Months to Visit Da Nang
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.