SeasonMapQuy Nhon weather in September
Vietnam
September in Quy Nhon: sweltering, soaked, with clean air — fine if you can take 24 rainy days.
#9 of 12 months in Quy Nhon · #975 of 1383 destinations to visit in September · comfort 68/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Quy Nhon in September
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Quy Nhon climate normals — September
| Daytime high | 33°C / 91°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 38°C / 100°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 228 mm / 9 in | ⛈ soaked |
| Rainy days | 24 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 12.2 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Quy Nhon in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer break in Vietnam, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Quy Nhon's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherQuy Nhon's weather peaks February–April, best around March.
Best weatherFair weatherToughest weather
What's on in Quy Nhon in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Storm and flood season
15 Sep – 15 Dec · usuallyTyphoon seasonClosuresThe south-central coast takes its weather late in the year, and a landfall or a few days of heavy rain closes the coast road and the boats out to the islands. October and November are the worst of it. Source ↗
- Season
Wet season
MonsoonRisk24 rainy days and about 228 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Quy Nhon — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Quy Nhon?
Quy Nhon in September — FAQ
- Is September a good time to visit Quy Nhon?
- September in Quy Nhon: sweltering, soaked, with clean air — fine if you can take 24 rainy days. It ranks #9 of 12 months for Quy Nhon on SeasonMap's comfort score (68/100).
- What is the weather like in Quy Nhon in September?
- In September, Quy Nhon averages a daily high of 32.6°C and a low of 26.7°C, with about 227.5 mm of rain over roughly 24 rainy days.
- What is the air quality in Quy Nhon in September?
- Quy Nhon has a mean US Air Quality Index of about 40 in September.
Other months in Quy Nhon
Compare Quy Nhon in September
Warmer or cooler than Quy Nhon in September
Similar destinations in Southeast Asia — September
Within 300 km: Hội An's Full moon lantern night on 1 Jan – 31 Dec, and Da Nang's Central coast rain season around 1 Sep – 15 Dec.