When to go · Vietnam
Vietnam in September
Mixed month. Typhoons shift to the centre; the north improves late in the month.
Key facts
- Verdict
- Mixed
- Crowds
- Medium
- Vietnam
- Prices
- Medium
- Vietnam
Verdict
Typhoons shift to the centre; the north improves late in the month.
Is another month better than September?
September is rated mixed. These months rate higher:
- MarchGreatBest compromise for a north-to-south trip: north warming, centre and south dry.
- AprilGreatWarm and dry in most places; the 30 Apr – 1 May long weekend fills beaches and flights.
- DecemberGoodNorth and south dry, centre wet; Christmas to New Year lifts beach prices.
- JanuaryGoodSouth and centre dry; the north is cool and grey — a jacket for Hanoi, cold nights in Sa Pa.
Weather in September
- North · Hanoi, Hạ Long, Ninh Bình, Sa Pafine
Four seasons: cool grey winters (Sa Pa can reach 0 °C (32 °F)), humid hot summers with storms Jul–Sep; Hạ Long cruises cancel on storm warnings.Four seasons: cool grey winters (Sa Pa can reach 32 °F (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 (72–77 °F)); dry December–March; rainy afternoons May–October.Mild all year (highs 72–77 °F (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.
- Northern Vietnam: Hanoi and the delta · Red River deltastorm or typhoon risk
Oct–Dec is the driest and clearest; Feb–Apr is damp with drizzle; May–Aug is 35 °C (95 °F)+ and humid; Jul–Sep brings typhoons that can cancel bay cruises.Oct–Dec is the driest and clearest; Feb–Apr is damp with drizzle; May–Aug is 95 °F (35 °C)+ and humid; Jul–Sep brings typhoons that can cancel bay cruises.
- Northern Vietnam: Northern mountains · Sa Pa, Ha Giang, Lao Caifine
Cooler than Hanoi all year; Dec–Feb can drop near freezing at night; Sep–Nov is the clearest for terraces and passes.
- Northern Vietnam: Coast and islands · Ha Long, Cat Ba, Hai Phongfine
Mar–Jun and Sep–Nov are the best windows; Jul–Aug storms can ground boats and close beaches.
- 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 °C (90 °F) / 24 °C (75 °F), 15 rain days90 °F (32 °C) / 75 °F (24 °C), 15 rain days
- Hanoi31 °C (88 °F) / 25 °C (77 °F), 13 rain days88 °F (31 °C) / 77 °F (25 °C), 13 rain days
- Ho Chi Minh City32 °C (90 °F) / 25 °C (77 °F), 22 rain days90 °F (32 °C) / 77 °F (25 °C), 22 rain days
- Hoi An32 °C (90 °F) / 24 °C (75 °F), 14 rain days90 °F (32 °C) / 75 °F (24 °C), 14 rain days
- Hue32 °C (90 °F) / 24 °C (75 °F), 16 rain days90 °F (32 °C) / 75 °F (24 °C), 16 rain days
- Bac Ha24 °C (75 °F) / 15 °C (59 °F), 8 rain days75 °F (24 °C) / 59 °F (15 °C), 8 rain days
- Bao Loc29 °C (84 °F) / 20 °C (68 °F), 20 rain days84 °F (29 °C) / 68 °F (20 °C), 20 rain days
- Ben Tre34 °C (93 °F) / 26 °C (79 °F), 13 rain days93 °F (34 °C) / 79 °F (26 °C), 13 rain days
- Ca Mau33 °C (91 °F) / 25 °C (77 °F), 20 rain days91 °F (33 °C) / 77 °F (25 °C), 20 rain days
- Ca Na31 °C (88 °F) / 23 °C (73 °F), 12 rain days88 °F (31 °C) / 73 °F (23 °C), 12 rain days
- Cai Be33 °C (91 °F) / 25 °C (77 °F), 13 rain days91 °F (33 °C) / 77 °F (25 °C), 13 rain days
- Cai Rong31 °C (88 °F) / 26 °C (79 °F), 9 rain days88 °F (31 °C) / 79 °F (26 °C), 9 rain days
- Cam Pha31 °C (88 °F) / 24 °C (75 °F), 13 rain days88 °F (31 °C) / 75 °F (24 °C), 13 rain days
- Cao Bang27 °C (81 °F) / 19 °C (66 °F), 13 rain days81 °F (27 °C) / 66 °F (19 °C), 13 rain days
- Cat Ba30 °C (86 °F) / 24 °C (75 °F), 13 rain days86 °F (30 °C) / 75 °F (24 °C), 13 rain days
- Co Loa33 °C (91 °F) / 25 °C (77 °F), 12 rain days91 °F (33 °C) / 77 °F (25 °C), 12 rain days
- Co To Island30 °C (86 °F) / 24 °C (75 °F), 14 rain days86 °F (30 °C) / 75 °F (24 °C), 14 rain days
- Cu Chi31 °C (88 °F) / 26 °C (79 °F), 5 rain days88 °F (31 °C) / 79 °F (26 °C), 5 rain days
- Cua Ong31 °C (88 °F) / 24 °C (75 °F), 13 rain days88 °F (31 °C) / 75 °F (24 °C), 13 rain days
- Dien Bien Phu29 °C (84 °F) / 21 °C (70 °F), 13 rain days84 °F (29 °C) / 70 °F (21 °C), 13 rain days
- Dong Dang30 °C (86 °F) / 23 °C (73 °F), 13 rain days86 °F (30 °C) / 73 °F (23 °C), 13 rain days
- Dong Ha30 °C (86 °F) / 24 °C (75 °F), 11 rain days86 °F (30 °C) / 75 °F (24 °C), 11 rain days
- Gia Nghia29 °C (84 °F) / 20 °C (68 °F), 18 rain days84 °F (29 °C) / 68 °F (20 °C), 18 rain days
- Giao Xuân33 °C (91 °F) / 25 °C (77 °F), 9 rain days91 °F (33 °C) / 77 °F (25 °C), 9 rain days
- Ha Tien32 °C (90 °F) / 26 °C (79 °F), 10 rain days90 °F (32 °C) / 79 °F (26 °C), 10 rain days
- Khâm Đức29 °C (84 °F) / 20 °C (68 °F), 16 rain days84 °F (29 °C) / 68 °F (20 °C), 16 rain days
- Khe Sanh30 °C (86 °F) / 22 °C (72 °F), 14 rain days86 °F (30 °C) / 72 °F (22 °C), 14 rain days
- Kon Tum30 °C (86 °F) / 22 °C (72 °F), 13 rain days86 °F (30 °C) / 72 °F (22 °C), 13 rain days
- Lăng Cô31 °C (88 °F) / 24 °C (75 °F), 15 rain days88 °F (31 °C) / 75 °F (24 °C), 15 rain days
- Lao Cai27 °C (81 °F) / 22 °C (72 °F), 12 rain days81 °F (27 °C) / 72 °F (22 °C), 12 rain days
- Long Xuyen32 °C (90 °F) / 26 °C (79 °F), 11 rain days90 °F (32 °C) / 79 °F (26 °C), 11 rain days
- Lý Sơn31 °C (88 °F) / 25 °C (77 °F), 10 rain days88 °F (31 °C) / 77 °F (25 °C), 10 rain days
- Mong Cai31 °C (88 °F) / 24 °C (75 °F), 14 rain days88 °F (31 °C) / 75 °F (24 °C), 14 rain days
- My Tho32 °C (90 °F) / 25 °C (77 °F), 10 rain days90 °F (32 °C) / 77 °F (25 °C), 10 rain days
- Na Meo31 °C (88 °F) / 24 °C (75 °F), 13 rain days88 °F (31 °C) / 75 °F (24 °C), 13 rain days
- Ngoc Hoi29 °C (84 °F) / 21 °C (70 °F), 18 rain days84 °F (29 °C) / 70 °F (21 °C), 18 rain days
- Phan Rang–Tháp Chàm33 °C (91 °F) / 26 °C (79 °F), 11 rain days91 °F (33 °C) / 79 °F (26 °C), 11 rain days
- Phan Thiet33 °C (91 °F) / 25 °C (77 °F), 6 rain days91 °F (33 °C) / 77 °F (25 °C), 6 rain days
- Pleiku27 °C (81 °F) / 19 °C (66 °F), 18 rain days81 °F (27 °C) / 66 °F (19 °C), 18 rain days
- Quan Lạn29 °C (84 °F) / 24 °C (75 °F), 10 rain days84 °F (29 °C) / 75 °F (24 °C), 10 rain days
- Quảng Ngãi31 °C (88 °F) / 24 °C (75 °F), 15 rain days88 °F (31 °C) / 75 °F (24 °C), 15 rain days
- Rach Gia32 °C (90 °F) / 25 °C (77 °F), 10 rain days90 °F (32 °C) / 77 °F (25 °C), 10 rain days
- Soc Trang33 °C (91 °F) / 25 °C (77 °F), 12 rain days91 °F (33 °C) / 77 °F (25 °C), 12 rain days
- Tam Dao26 °C (79 °F) / 19 °C (66 °F), 15 rain days79 °F (26 °C) / 66 °F (19 °C), 15 rain days
- Tam Kỳ33 °C (91 °F) / 25 °C (77 °F), 4 rain days91 °F (33 °C) / 77 °F (25 °C), 4 rain days
- Tây Ninh31 °C (88 °F) / 27 °C (81 °F), 12 rain days88 °F (31 °C) / 81 °F (27 °C), 12 rain days
- Thac Mo31 °C (88 °F) / 24 °C (75 °F), 13 rain days88 °F (31 °C) / 75 °F (24 °C), 13 rain days
- Thái Nguyên32 °C (90 °F) / 25 °C (77 °F), 11 rain days90 °F (32 °C) / 77 °F (25 °C), 11 rain days
- Thanh Hoa32 °C (90 °F) / 25 °C (77 °F), 9 rain days90 °F (32 °C) / 77 °F (25 °C), 9 rain days
- Tra Vinh31 °C (88 °F) / 24 °C (75 °F), 18 rain days88 °F (31 °C) / 75 °F (24 °C), 18 rain days
- Tuan Chau Island31 °C (88 °F) / 25 °C (77 °F), 15 rain days88 °F (31 °C) / 77 °F (25 °C), 15 rain days
- Vinh Long33 °C (91 °F) / 25 °C (77 °F), 12 rain days91 °F (33 °C) / 77 °F (25 °C), 12 rain days
- Vinh31 °C (88 °F) / 24 °C (75 °F), 5 rain days88 °F (31 °C) / 75 °F (24 °C), 5 rain days
- Y Ty25 °C (77 °F) / 16 °C (61 °F), 16 rain days77 °F (25 °C) / 61 °F (16 °C), 16 rain days
- Nha Trang32 °C (90 °F) / 24 °C (75 °F), 10 rain days90 °F (32 °C) / 75 °F (24 °C), 10 rain days
- Da Lat24 °C (75 °F) / 17 °C (63 °F), 23 rain days75 °F (24 °C) / 63 °F (17 °C), 23 rain days
- Sa Pa23 °C (73 °F) / 16 °C (61 °F), 19 rain days73 °F (23 °C) / 61 °F (16 °C), 19 rain days
- Ha Giang31 °C (88 °F) / 23 °C (73 °F), 15 rain days88 °F (31 °C) / 73 °F (23 °C), 15 rain days
- Hai Phong30 °C (86 °F) / 25 °C (77 °F), 13 rain days86 °F (30 °C) / 77 °F (25 °C), 13 rain days
- Ha Long City30 °C (86 °F) / 25 °C (77 °F), 14 rain days86 °F (30 °C) / 77 °F (25 °C), 14 rain days
- Can Tho31 °C (88 °F) / 24 °C (75 °F), 23 rain days88 °F (31 °C) / 75 °F (24 °C), 23 rain days
- Phu Quoc29 °C (84 °F) / 25 °C (77 °F), 22 rain days84 °F (29 °C) / 77 °F (25 °C), 22 rain days
- Quy Nhon32 °C (90 °F) / 25 °C (77 °F), 13 rain days90 °F (32 °C) / 77 °F (25 °C), 13 rain days
- Mui Ne31 °C (88 °F) / 25 °C (77 °F), 16 rain days88 °F (31 °C) / 77 °F (25 °C), 16 rain days
- Vung Tau31 °C (88 °F) / 25 °C (77 °F), 19 rain days88 °F (31 °C) / 77 °F (25 °C), 19 rain days
- Dong Hoi31 °C (88 °F) / 25 °C (77 °F), 15 rain days88 °F (31 °C) / 77 °F (25 °C), 15 rain days
- Ninh Binh City31 °C (88 °F) / 25 °C (77 °F), 14 rain days88 °F (31 °C) / 77 °F (25 °C), 14 rain days
- Buon Ma Thuot29 °C (84 °F) / 21 °C (70 °F), 23 rain days84 °F (29 °C) / 70 °F (21 °C), 23 rain days
- Chau Doc32 °C (90 °F) / 25 °C (77 °F), 22 rain days90 °F (32 °C) / 77 °F (25 °C), 22 rain days
- Con Dao30 °C (86 °F) / 26 °C (79 °F), 18 rain days86 °F (30 °C) / 79 °F (26 °C), 18 rain days
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.
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 and prices
- Crowds · Vietnam
- Medium
- Prices · Vietnam
- Medium
Compare two months
Weather, crowds and prices for any two months in Vietnam, side by side.
Verdict
Sep: Mixed
Mar: Great (better)
Crowds
Sep: Medium
Mar: Medium
Prices
Sep: Medium
Mar: Medium
Festivals listed
Sep: 9
Mar: 12
September: Typhoons shift to the centre; the north improves late in the month.
March: Best compromise for a north-to-south trip: north warming, centre and south dry.
Vietnam: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast
- A spare day in the plan: storms can cancel flights and ferries
Where to go in September
Rated best or good this month
Best months: Mar–Jun, Sep–Nov
Best months: Mar–Jun, Sep–Nov
Best months: Mar–Jun, Sep–Nov
Best months: Mar–Jun, Sep–Nov
Best months: Feb–Apr, Aug–Oct
Best months: Mar–May, Sep–Nov
Best months: Mar–May, Sep–Nov
Best months: Feb–Oct (dry season)
Best months: Dec–Feb, Sep–Oct
Best months: Mar–Jun, Sep–Nov
Best months: Feb–May, Aug–Oct
Best months: Feb–Oct (dry season)
Better another month
Centre
Monsoon runs Sep–Feb, the opposite of the south; Hội An's old town floods most Octobers and Novembers.