Vietnam in September

Typhoons shift to the centre; the north improves late in the month.

• North · Hanoi, Hạ Long, Ninh Bình, Sa Pafine

  Four seasons: cool grey winters (Sa Pa can reach 0 °C), humid hot summers with storms Jul–Sep; Hạ Long cruises cancel on storm warnings.

• Centre · Huế, Đà Nẵng, Hội An, Quy Nhơnstorm or typhoon risk

  Monsoon runs Sep–Feb, the opposite of the south; Hội An's old town floods most Octobers and Novembers.

• South · Ho Chi Minh City, Mekong, Phú Quốcrainy

  Hot all year; wet May–Nov means a 1–2 h afternoon downpour, rarely a lost day.

• Central Coast: Huế to Hội An · Huế, Đà Nẵng, Hội Anstorm or typhoon risk

  Dry February–August; typhoons and floods September–December; Huế is wetter than Đà Nẵng.

• Central Coast: South-central · Quy Nhơn, Nha Trang, Mũi Néfine

  Drier than the north of the coast; Mũi Né is one of the driest places in Vietnam.

• Central Highlands: Đà Lạt plateau · Đà Lạtrainy

  Mild all year (highs 22–25 °C); dry December–March; rainy afternoons May–October.

• Central Highlands: Dak Lak plateau · Buôn Ma Thuộtrainy

  Warmer than Đà Lạt; coffee harvest November–January.

• North Vietnam: Hanoi and the Red River delta · Hanoi, Ninh Bình, Hải Phòngfine

  Grey drizzle Feb–Mar; storms Jul–Sep; October–November clear and dry.

• North Vietnam: Coast and bays · Hạ Long, Lan Hạ, Cát Bàstorm or typhoon risk

  Typhoon warnings cancel cruises Jul–Sep; winter haze.

• North Vietnam: Northern mountains · Sa Pa, Hà Giangbest weather

  Near freezing in Dec–Jan; rice terraces green May–Jul, golden mid-Sep to early Oct; buckwheat flowers in Hà Giang Oct–Nov.

• Southern Vietnam: Saigon and the delta · Ho Chi Minh City, Cần Thơ, Châu Đốcrainy

  Hot all year; wet May–November with afternoon storms; delta floods Sep–Nov raise the rivers.

• Southern Vietnam: Islands · Phú Quốc, Côn Đảorainy

  Phú Quốc's west coast is calm November–April; rough in the south-west monsoon.

• Da Nang32° / 24°, 15 rain days
• Hanoi31° / 25°, 13 rain days
• Ho Chi Minh City32° / 25°, 22 rain days
• Hoi An32° / 24°, 14 rain days
• Hue32° / 24°, 16 rain days
• Nha Trang32° / 24°, 10 rain days
• Da Lat24° / 17°, 23 rain days
• Sa Pa23° / 16°, 19 rain days
• Ha Giang31° / 23°, 15 rain days
• Hai Phong30° / 25°, 13 rain days
• Ha Long City30° / 25°, 14 rain days
• Can Tho31° / 24°, 23 rain days
• Phu Quoc29° / 25°, 22 rain days
• Quy Nhon32° / 25°, 13 rain days
• Mui Ne31° / 25°, 16 rain days
• Vung Tau31° / 25°, 19 rain days
• Dong Hoi31° / 25°, 15 rain days
• Ninh Binh City31° / 25°, 14 rain days
• Buon Ma Thuot29° / 21°, 23 rain days
• Chau Doc32° / 25°, 22 rain days
• Con Dao30° / 26°, 18 rain days

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.

• National Day

  2 Sep (+1 day)

  Two-day holiday; Hanoi central streets closed for events; domestic travel peak.

• Mid-Autumn Festival

  15th day of the 8th lunar month (around 15 September in 2027 — check)

  Not a day off; lantern crowds in Hanoi Old Quarter and Hội An in the evening.

• Typhoon and flood season

  Peak October–November · Da Nang

  Beaches close under red flags; flights, boats and the pass can close.

• King tides and floods

  Rainy-season high tides · Ho Chi Minh City

  Knee-deep water for an hour or two after heavy rain at high tide.

• Full-moon lantern night check

  14th of each lunar month · Hoi An

  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 · Hoi An

  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 · Hoi An

  Offerings burned outside houses; pagodas busy on the 15th.

• Typhoon season

  Mainly September to November · Hoi An

  Storm warnings close the sea and cancel boats; stay indoors for the passage of a storm.

• Mid-Autumn

  Sep–Oct · Hoi An

  Lanterns, lion dances and mooncakes; children's parades.

Crowds · Vietnam

Medium

Prices · Vietnam

Medium

• A rain jacket or umbrella and shoes that dry fast
• A spare day in the plan: storms can cancel flights and ferries

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Rated best or good this month

• Sa Pa

  Best months: Sep–Nov, Mar–May

• Ha Giang

  Best months: Sep–Nov (buckwheat flowers Oct–Nov), Mar–May

• Ha Long City

  Best months: Mar–May, Sep–Nov

• Ninh Binh City

  Best months: Mar–May, Sep–Nov

• Chau Doc

  Best months: Sep–Nov (flooded forest) or Dec–Apr (dry)

• Con Dao

  Best months: Mar–Jun (calm sea), turtles May–Oct

Better another month

• Centre

  Monsoon runs Sep–Feb, the opposite of the south; Hội An's old town floods most Octobers and Novembers.