Quick answer: Vietnam has three distinct climate zones — north, centre, and south — so there is no single answer to what is the weather like. The best all-round window is February to April, when all three regions are dry and pleasant. For the north, October–November (autumn) and March–April (spring) are superb. The centre is best February–August (dry and sunny) and best avoided October–November (wettest months). The south works year-round, but December–April is the reliable dry season. Vietnam weather by month
Planning a trip to Hon Thom Island, Sunset Town, or Grand World? Timing your trip right makes all the difference. This guide breaks down every month, region by region — so you know exactly what to expect.
🗺️ Why Vietnam Has Three Different Climates
Vietnam stretches 1,650 kilometers from north to south. The north has four seasons; the centre has a dry-wet pattern; the south has two seasons—dry and wet. The Truong Son mountain range and the Hai Van Pass act as a weather divide, blocking moisture from reaching the central coast in some months and dumping it in others. This means that when it’s lovely in Hanoi, it can be flooding in Hoi An. When Saigon is sweltering, the north can be cold and misty. Plan by region, not by Vietnam weather by month.
📅 Month-by-Month Guide: North, Centre & South
❄️ January
North: Cold and foggy. Temperatures range from 2°C to 20°C. Hanoi can be gray, Sapa dips near freezing. Best for: Experiencing winter in Vietnam; not for beach lovers.
Centre: Pleasant and dry. Temperatures around 20–25°C. Hoi An, Da Nang, and Hue are mild and relatively quiet. Best for: Exploring Hoi An’s old town without the summer crowds.
South: Perfect weather. Temperatures 25–30°C. Ho Chi Minh City and Phu Quoc are sunny and dry. Best for: Beaches, Mekong Delta, and Phu Quoc.
🌸 February
North: Still cool, but warming. Temperatures 15–20°C. Ha Long Bay visibility is excellent. Best for: Hanoi sightseeing and Ha Long Bay cruises.
Centre: Warm and dry. Temperatures 20–25°C. The coast is dry and sunny. Best for: Da Nang beaches and Hoi An walks.
South: Dry and sunny. Best time for Phu Quoc — calm seas and clear skies. The driest month nationwide with only about 6mm of rainfall.
⚠️ Tet Warning: Lunar New Year usually falls in late January or February. Businesses close, transport books out, and prices spike. Book everything well in advance.
🌿 March
North: Mild, dry, and pleasant. Temperatures 20–28°C. Spring clarity — one of the best windows for the north. Best for: Sapa trekking, Ha Long Bay, and Hanoi exploration.
Centre: Hot and sunny. Temperatures 25–35°C. Perfect beach weather. Best for: Da Nang, Hoi An, and Nha Trang.
South: Getting hot and humid. Temperatures 28–35°C. Dry season continues.
March–April is the best all-round window for visiting the entire country.
☀️ April
North: Warm and comfortable. Temperatures 20–30°C. Spring at its peak, with light drizzle. Best for: Everything in the north — Hanoi, Sapa, Ha Long Bay.
Centre: Hot and dry. Temperatures 25–35°C. Peak beach season begins. Best for: Nha Trang and Da Nang beaches.
South: Hot and dry. Temperatures 28–35°C. The dry season is still going strong.
This month and March are the safest bets for a north-to-south route.
🌧️ May
North: Hot and humid. Temperatures 25–29°C. Increasing rainfall. Best for: Lush green landscapes.
Centre: Hot and dry. Temperatures 25–35°C. Still good beach weather. Best for: Beach holidays before the rains come.
South: Wet season begins. Temperatures 26–34°C. Short afternoon downpours. Best for: Mekong Delta — the landscape is lush and green.
🔥 June
North: Hot, humid, and wet. Temperatures 29–30°C. Heaviest rain in July and August. Best for: Sapa (cooler at altitude — 18–25°C).
Centre: Hot and dry. Temperatures 30–35°C. Peak beach season. Best for: Nha Trang and Da Nang.
South: Wet season continues. Afternoon showers are common. Temperatures stay hot and humid.
⚠️ 2026 heat warning: Hanoi is forecast to experience 11–15 heat waves between April and September, with June temperatures reaching 39–41°C.
🌊 July
North: Hot and rainy. July and August are the wettest months for the north. Avoid: Ha Long Bay — typhoon risk.
Centre: Hot and dry. Temperatures 30–35°C. Peak beach season. Best for: Central coast beaches.
South: Rainy season. Short, predictable downpours. Temperatures remain hot.
☔ August
North: Hot and rainy. Similar to July — avoid Ha Long Bay due to typhoon risk. Temperatures 29–30°C.
Centre: Hot and dry. Last month of guaranteed dry weather. Best for: One last beach trip before the rains come.
South: Rainy season continues. Afternoon showers are heavy but brief.
🍂 September
North: Cooling down. Temperatures 21–28°C. Autumn begins — clear skies, golden light. Best for: Sapa’s golden rice harvest (peaks in September).
Centre: ⚠️ Rainy season starts. Typhoon risk from September to December. Avoid: Hoi An — flooding is common.
South: Transitioning. Rain begins to ease towards the end of the month.
🌧️ October
North: Golden autumn — the best single month for the north. Cool, clear, temperatures 20–28°C. Best for: Ha Long Bay (clearest skies, calm sea), Sapa’s golden harvest.
Centre: ⚠️ Worst month of the year for the central coast. Heavy rain, typhoons, and flooding. Avoid: Hoi An — it literally floods most years. Da Nang is also risky.
South: Coming out of the rainy season. Getting better. Good time for the south if you time it right.
🌤️ November
North: Cool and pleasant. Temperatures 18–26°C. Autumn still lingers — clear skies, golden light. Best for: Hanoi and Ha Long Bay before winter sets in.
Centre: ⚠️ Still wet and risky. Rain begins to ease towards the end of the month, but typhoon risk remains. Check the forecast before planning.
South: Dry season starts. Temperatures 25–32°C. Phu Quoc becomes great again — calm seas, clear skies. Best for: Phu Quoc and Ho Chi Minh City.
⛅ December
North: Cool and dry. Temperatures 15–22°C. Winter settles in — clear skies, crisp air. Best for: Hanoi sightseeing (just bring a jacket).
Centre: Getting better. Rain eases, temperatures are pleasant (22–28°C). Best for: Da Nang and Hoi An start becoming visitable again.
South: Perfect weather. Temperatures 25–30°C. Phu Quoc is at its best — dry, sunny, calm seas. Best for: Beaches, Mekong Delta, Phu Quoc. It is also the driest month of the year for the south.
📊 Quick Reference: When to Go Where
December–February: Best for the south (Phu Quoc, Ho Chi Minh City, Mekong Delta). The north is cold; the centre is recovering from the rainy season.
March–May: Best all-round window. All three regions are dry and pleasant. Ideal for a north-to-south route.
June–August: Best for the central coast (Da Nang, Nha Trang). The north is hot and rainy; the south is in its wet season.
September–November: Best for the north (Hanoi, Ha Long Bay, Sapa). The centre is rainy and risky; the south is transitioning.
☔ What to Pack for Each Season
North (Winter): Warm jacket, scarf, and layers. Temperatures can drop to 10°C in Hanoi and below freezing in Sapa.
North (Summer): Light clothing, sunscreen, and an umbrella. Rain is frequent.
Central Coast: Light clothing year-round. A raincoat or umbrella is useful from September to December.
South: Light, breathable clothing. Sunscreen is essential. An umbrella for the rainy season (May–November).
⚠️ Typhoon & Flooding Risks
The central coast is at risk of typhoons and flooding from September to November. Hoi An is particularly vulnerable to flooding. If you plan to visit these areas, monitor weather forecasts and book flexible accommodation.
💎 Final Verdict
Vietnam has something to offer every month, but February to April is the best window for most travelers. The weather is dry, the skies are clear, and the temperatures are comfortable across the country. If you’re flexible, aim for March–April or November–December — these months combine good weather with fewer crowds.
Once you’ve chosen your dates, the rest of Vietnam is waiting. Check out my detailed guides to Hon Thom Island, Sunset Town, and Grand World to start planning your trip.
🏨 Where to Stay & What to Pair It With
Once you’ve picked your dates, it’s time to book your accommodation. You’ll find everything from budget guesthouses to luxury resorts across Vietnam — check hotels in Vietnam to compare prices and read guest reviews. For a broader overview, I’ve put together guides to the best hotels on Phu Quoc, best hotels in Da Nang, and best hotels in Nha Trang if you’re still deciding where to base yourself.
Pair your trip with a visit to Ngoc Hien Pearl Farm for a unique cultural experience, or Sim Sơn Winery for a taste of Phu Quoc’s famous sim wine. For a full day of adventure, combine it with VinWonders and Safari — the park is one of the island’s top attractions.
