Hội An weather in September

September in Hội An: sweltering, soaked, with very humid — one of the weakest months to visit.

#12 of 12 months in Hội An · #578 of 604 destinations to visit in September · comfort 46/100 (tier F)

Updated June 2026 · climate normals from ERA5 reanalysis

Hội An climate normals — September

Daytime high31°C / 87°F🔥 sweltering
Nighttime low26°C / 78°F
Feels like (high)37°C / 99°F
Rainfall328 mm / 12.9 in⛈ soaked
Rainy days24 days
Humidity84%💦 very humid
Dew point25°C / 76°F
Sunshine9.2 h/day
Daylight12.2 h
Wind14 km/h / 9 mph
Air quality (US AQI)82🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Where is Hội An?

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Hội An in September — FAQ

Is September a good time to visit Hội An?
September in Hội An: sweltering, soaked, with very humid — one of the weakest months to visit. It ranks #12 of 12 months for Hội An on SeasonMap's comfort score (46/100).
What is the weather like in Hội An in September?
In September, Hội An averages a daily high of 30.6°C and a low of 25.8°C, with about 328 mm of rain over roughly 24.2 rainy days.
What is the air quality in Hội An in September?
Hội An has a mean US Air Quality Index of about 82 in September.

Other months in Hội An

Warmer or cooler than Hội An in September

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