When to go · Hoi An
Hoi An in September
Mixed month. Rain and storm risk rise.
Key facts
- Verdict
- Mixed
- Temperature
- 32°C (90°F)90°F (32°C) / 24°C (75°F)75°F (24°C)
- average high / low
- Rain days
- 14
- Crowds
- Medium
- Vietnam overall
- Prices
- Medium
- Vietnam overall
Verdict
Rain and storm risk rise.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than September?
September is rated mixed. These months rate higher:
Weather in September
- Hoi AnHighs around 32 °C (90 °F), lows around 24 °C (75 °F), rain on about 14 daysHighs around 90 °F (32 °C), lows around 75 °F (24 °C), rain on about 14 days
Wet autumn season
Few visitors, low prices, green countryside between storms.
Watch: Floods and typhoons; island boats stop.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Full-moon lantern night check
14th of each lunar month · Old town and riverside
Streetlights off and lanterns on from about 18:00, candles on the river, folk music and games; motorbikes kept out. The most crowded evening of the month.
Cù Lao Chàm island season check
About March to September · Cửa Đại pier
Speedboats run in calm seas; daily visitor caps apply (check).
Vu Lan and the ghost month check
7th lunar month; Vu Lan on the 15th · Pagodas, homes
Offerings burned outside houses; pagodas busy on the 15th.
National Day
2 September (holiday, often a long weekend) · Nationwide
Flags everywhere; domestic crowds.
Mid-Autumn Festival check
15th of the 8th lunar month; around 15 September in 2027 · Old town
Lantern stalls, lion dances in the lanes, mooncakes; children parade with lanterns.
Typhoon season
Mainly September to November · Central coast
Storm warnings close the sea and cancel boats; stay indoors for the passage of a storm.
Mid-Autumn
Sep–Oct
Lanterns, lion dances and mooncakes; children's parades.
Crowds and prices
- Crowds · Vietnam overall
- Medium
- Prices · Vietnam overall
- Medium
Vietnam overall: Typhoons shift to the centre; the north improves late in the month.
Compare two months
Weather, crowds and prices for any two months in Hoi An, side by side.
Verdict
Sep: Mixed
Mar: Great (better)
Daytime high
Sep: 32 °C (90 °F)90 °F (32 °C)
Mar: 29 °C (84 °F)84 °F (29 °C)
Night low
Sep: 24 °C (75 °F)75 °F (24 °C)
Mar: 21 °C (70 °F)70 °F (21 °C)
Rain days
Sep: 14
Mar: 4 (better)
Crowds
Sep: Medium
Mar: Medium
Prices
Sep: Medium
Mar: Medium
Festivals listed
Sep: 7
Mar: 5
September: Rain and storm risk rise.
March: Mild and dry: the best month.
Hoi An: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast