Weather in Vietnam in September: A Traveler’s Guide 🌧️☀️

September marks the transition between Vietnam’s wet and dry seasons, offering a mix of sunshine and rain across the country. Whether you’re planning a beach getaway, a cultural exploration, or an adventure in the highlands, understanding the weather patterns is key to a smooth trip. Here’s what you need to know about Vietnam’s climate in September.


Regional Weather Breakdown 🌎

Vietnam’s elongated shape means weather varies significantly from north to south. September’s conditions depend largely on your destination:

  1. Northern Vietnam (Hanoi, Halong Bay, Sapa)
    • Rainfall: September is part of the rainy season, with frequent downpours, especially in Hanoi and Halong Bay. Expect high humidity and occasional typhoons.
    • Temperatures: Average highs of 30°C (86°F) and lows of 24°C (75°F).
    • Travel Tip: Pack a light raincoat and waterproof gear. Mountainous areas like Sapa may experience landslides, so check road conditions.
  2. Central Vietnam (Hue, Da Nang, Hoi An)
    • Rainfall: The tail end of the dry season, but showers become more frequent later in the month.
    • Temperatures: Hover around 28–32°C (82–90°F).
    • Travel Tip: Coastal areas are still great for beach visits early in September, but monitor forecasts for storms.
  3. Southern Vietnam (Ho Chi Minh City, Mekong Delta, Phu Quoc)
    • Rainfall: Peak of the wet season, with short but intense afternoon showers. Flooding can occur in the Mekong Delta.
    • Temperatures: Consistently warm, averaging 27–31°C (81–88°F).
    • Travel Tip: Carry an umbrella and plan indoor activities for rainy afternoons.

What to Pack for September in Vietnam 🎒

  • Rain gear: Compact umbrella, waterproof shoes, and a quick-dry towel.
  • Light clothing: Breathable fabrics like cotton or linen for humidity.
  • Mosquito repellent: Essential for wetter regions.
  • Power bank: Sudden storms may disrupt electricity.

Best Places to Visit in September 🌴

  • Da Lat: Cool highland climate with minimal rain—perfect for hiking.
  • Phu Quoc: Despite showers, the island has lush landscapes and fewer crowds.
  • Hoi An: Quieter than peak season, with occasional sunny days for exploring.

Avoid Halong Bay cruises if typhoons are forecasted. For more seasonal tips, see our guide on the best time to visit Vietnam.


September Events & Festivals 🎉

  • Mid-Autumn Festival (Tet Trung Thu): Celebrated with lantern parades and mooncakes, usually in late September.
  • Vietnam Independence Day (Sept 2): National holiday with fireworks and cultural events.

Final Tips

  • Book flexibly: Weather can disrupt travel plans; opt for refundable tickets.
  • Stay updated: Follow local weather alerts, especially for typhoons.
  • Embrace the rain: Sudden showers often pass quickly—use them as a chance to enjoy Vietnam’s vibrant café culture.

For detailed monthly forecasts, check our guides for October or August.


🌏 Vietnam in September is a land of contrasts—lush greenery from rains, fewer tourists, and vibrant local life. Plan wisely, and you’ll uncover its beauty despite the weather!

Basic Information about September in Vietnam

Feature Details
Average Temperature 25°C to 30°C (77°F to 86°F)
Rainfall High rainfall, especially in the northern and central regions
Humidity Generally high, around 80%
Rainy Season Peak monsoon period, especially in northern and central Vietnam
Average Sunshine Moderate, with some cloudy days due to rain
Tourist Season Less crowded compared to peak months, suitable for travel
Sea Temperature Around 27°C to 29°C (81°F to 84°F)
Regional Climate Variations Northern Vietnam experiences cooler weather, central and southern regions remain warm
Clothing Recommendations Light rain jackets, umbrellas, breathable clothing
Festivals and Events Mid-Autumn Festival often occurs, with cultural celebrations

Frequently Asked Questions about September Weather in Vietnam

Question Answer
What is the typical weather in Vietnam during September? September in Vietnam generally features the rainy season, with high humidity and frequent rainfall across many regions.
Which parts of Vietnam experience the most rain in September? Central Vietnam and the northern regions often see heavy rainfall, while the south begins to transition toward drier conditions.
Is September a good time to visit Vietnam? It depends on the region; while some areas experience heavy rains, others may have less rain, but generally it is considered off-peak due to weather conditions.
What is the temperature range in Vietnam during September? Temperatures typically range from 24°C to 31°C, with higher humidity levels.
Are typhoons common in September in Vietnam? Yes, September is within the typhoon season, especially affecting central and northern coastal areas.
What clothing should travelers pack for September in Vietnam? Light, breathable clothing, rain gear such as waterproof jackets or umbrellas, and waterproof footwear are recommended.
How does the weather in September affect outdoor activities? Frequent rain and high humidity can limit outdoor activities, but some dry days may still be suitable for sightseeing.
Is September considered the low or high tourist season in Vietnam? September is generally part of the low season due to the rainy weather, leading to fewer tourists and lower prices.
What are the regional variations in weather across Vietnam in September? The north experiences cooler temperatures and more rain, the central region faces heavy rains and potential typhoons, while the south starts to see drier conditions and warmer weather.