Nha Trang · AutumnMonth summary
Nha Trang weather in September
✅ Good
🌡️ Temperature min / max
25°C – 31°C
🌧 Rainy days
69% of days
☀️ Sunshine
11.1h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.1/10
📅 📅 Best month
March (8.4/10)
Quick decision
Should you visit Nha Trang in September?
✅ Good
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: Nha Trang in September: 31°C and 11.1h of sunshine. Decent, but not the peak.
By trip type
Nha Trang in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Water at 28°C and lively beaches — September is peak swimming season in Nha Trang Autumn in Nha Trang is often underrated: 31°C, golden light and declining crowds. An interesting window. With 69% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. March (8.4/10) is significantly better if possible.
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All months for Nha Trang
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 22°C | 26°C | 42% | 2.7 | 10.5h | 7.8/10 |
| 🌤️ February | 22°C | 27°C | 34% | 2.0 | 11.3h | 8.2/10 |
| 🌤️ March | 23°C | 29°C | 29% | 1.4 | 11.8h | 8.4/10 |
| 🌤️ April | 24°C | 31°C | 29% | 1.8 | 11.9h | 7.9/10 |
| 🌤️ May | 26°C | 32°C | 48% | 2.7 | 12.0h | 7.4/10 |
| 🌤️ June | 26°C | 33°C | 37% | 2.4 | 12.2h | 7.4/10 |
| 🌤️ July | 26°C | 32°C | 50% | 2.9 | 12.0h | 7.3/10 |
| 🌤️ August | 26°C | 33°C | 47% | 3.0 | 11.9h | 7.2/10 |
| ⛅ September | 25°C | 31°C | 69% | 5.7 | 11.1h | 7.1/10 |
| ⛅ October | 24°C | 29°C | 83% | 8.6 | 10.3h | 7.1/10 |
| ⛅ November | 24°C | 28°C | 76% | 13.9 | 10.5h | 7.1/10 |
| ⛅ December | 23°C | 27°C | 61% | 7.4 | 10.1h | 7.3/10 |
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 September, Nha Trang averages 31°C, 69% rainy days and 11.1h of sunshine per day. Overall weather score: 7.1/10.
See methodology →
Comparison
September vs March (best month)
The best month is March (score 8.4/10). Difference:
- 🌡️ Max temperature : -2°C
- 🌧 Rainy days : -40%
- ☀️ Sunshine : +0.7h/day
FAQ
FAQ — Nha Trang in September
Is September a good time to visit Nha Trang?
September is an acceptable time for Nha Trang (score 7.1/10). Conditions are decent but not optimal — consider March (8.4/10) if possible.
Does it rain a lot in Nha Trang in September?
Yes, 69% of days see rain in September. Plan some indoor activities as backup.
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