Best Time to Visit Vietnam & Cambodia (2026): Month-by-Month Guide

Our South East Asia travel guide settles it, month by month, with a four zone table, a quick priority picker, and honest notes on what to avoid.

Key Takeaways

• Best overall window: November to February. Dry and cool across both countries, and the safest single answer for a combined trip.
• Vietnam has 3 climates. North, Central, and South each peak at different times, so read the table by destination, not by date.
• Cambodia is simpler: dry November to April, green and wet May to October. Angkor crowds peak December to February.
• Central Vietnam adventure (Phong Nha caves and jungle): February to August is the reliable window. We run tours here every season, and this is the stretch when river levels are stable.
• Avoid if you can: Central Vietnam's typhoon and flood season, roughly September to November, plus April heat in the south and the days right around Tet.

Quick Answer: Best Time at a Glance

Best overall window (November to February)

If you want one safe answer, go November to February. Cambodia sits in its dry season, Southern Vietnam is pleasant and Northern Vietnam is cool and clear. This window lines up best for a classic combined route that takes in Angkor Wat, Halong Bay, and Ho Chi Minh City. The one soft spot is Central Vietnam, which can still be cool and damp early on, especially in December.

Pick by priority (decision tool)

The single best month changes depending on what matters most to you. Find your priority, then read the matching month against the table below.

Angkor Archaeological Park near Siem Reap, Cambodia

Vietnam & Cambodia Weather by Month (Comparison Table)

This is the heart of the decision. Because the regions do not share one climate, read down your destination's column, not across the row. One calendar month can feel like two completely different trips depending on your location, north, center, or south.

The pattern worth memorizing: when the north and Cambodia are at their best (November to February), Central Vietnam is at its weakest. When Central Vietnam is at its best (roughly March to August), the south is getting wet and the north is heating up. No month is perfect everywhere, which is exactly why the priority picker above matters.

Why the Climates Don't Line Up

Vietnam: a long country, three seasons

Vietnam runs more than 1,600 km north to south, so it never has one nationwide season. The North has a cool winter, roughly November to April, and a hot, wet summer. The Center keeps its own rhythm, dry from about February to August, then a distinct rainy and typhoon season in autumn. The South is tropical year-round with a simple split: dry from November to April, wet from May to October. That is why a single date can put you in cool drizzle in Hue and dry heat in the Mekong on the same afternoon.

Cambodia: dry versus green season

Cambodia is far more straightforward. There is a dry season from November to April, then a green or wet season from May to October, driven by the southwest monsoon. Rain in the green season usually arrives as short, heavy afternoon downpours rather than all-day washouts, so mornings often stay clear enough for temple visits.

Where the mountains meet the sea - the stunning Lang Co Bay in Central Vietnam

Best Time to Visit Vietnam, Region by Region

Northern Vietnam: Hanoi, Halong Bay, and Sapa

Best from October to April. Spring (March to April) and autumn (October to November) are the sweet spots, mild and clear and comfortable for Halong Bay cruises and Sapa trekking. Winter (December to February) is cool and can be misty, with Sapa occasionally cold enough for frost on the high passes. Summer is hot and humid with heavier rain, and it overlaps the northern typhoon window from around July, though the north is hit less often than the center.

Central Vietnam: Hue, Da Nang, Hoi An, and Phong Nha

This is our home turf, so here is the ground truth from running tours through every season. Central Vietnam is dry and warm from February to August, the prime window for the coast (Da Nang and the Hoi An beaches) and for Phong Nha's caves and jungle. In our experience this is when river levels are stable, trails stay dry, and the wet-cave and river-based trips run most reliably. February and March are comfortable, while June to August get genuinely hot, often into the mid-30s Celsius, which is fine inside the caves where temperatures stay cool year-round.

From around September the rains arrive, and October and November are the flood and typhoon season, when river levels rise and some cave tours pause for safety. There is a useful distinction here that most guides skip: dry show-caves like Paradise Cave usually keep running through the wet months, while river-fed and expedition-style trips are the ones that get weather-gated first. If you are planning an adventure trip to Phong Nha, aim for February to August. You can explore our Phong Nha tours here to match a route to your window. The cooler December and January stretch is fine for sightseeing dry caves, just expect some grey, damp days and keep plans flexible.

Southern Vietnam: Ho Chi Minh City and the Mekong Delta

Best from November to April, the dry season. May to October brings afternoon downpours, rarely trip-ending but humid, and April is the hottest month before the rains break. The Mekong Delta is lush and full in the wet months, which has its own appeal for photography and for seeing the rice paddies at their greenest.

Best Time to Visit Cambodia (incl. Angkor Wat)

Dry season (November to April)

The most popular time, and for good reason. Sunny skies, low humidity early on, and ideal conditions for long days at Angkor Wat. The trade-off is crowds and higher prices, peaking December to February. November is the quiet sweet spot, with fresh green from the just-ended rains and fewer tour groups than midwinter. April brings excellent skies but serious heat, often above 35 Celsius, plus the Khmer New Year holiday.

Green or wet season (May to October)

Worth a serious look. The green season fills the Angkor moats, turns the surrounding jungle vivid, and clears out the crowds, with noticeably lower prices. Rain typically falls in short afternoon bursts, leaving mornings clear for temple visits. October is a particularly good shoulder month as the rains ease. This is also when the Tonle Sap lake swells and the floating and stilted villages around it are at their most accessible, a side trip that is far less rewarding in the dry months.

Visiting in the Shoulder & Green Season

If you can handle some rain, May to June and September to October reward you with lower prices, thinner crowds, and greener scenery. The practical approach is simple: plan outdoor activities for the morning and keep afternoons flexible. The main caveat is Central Vietnam from September to November, where green season tips into genuine flood risk, so weight your itinerary toward the north, the south, and Cambodia in those months. June through August is the exception that catches people out, because that is peak dry season in Central Vietnam even while the south and Cambodia are wet.

What to Avoid: Typhoons, Heat, and Crowds

Central Vietnam typhoon and flood season (Sep to Nov)

This is the single most important thing to plan around, and we would rather be straight with you than soft-pedal it. Hue, Hoi An, and Phong Nha can see heavy rain, flooding, and typhoons in autumn, with October and November the worst of it. It is not a total no-go. City sightseeing, food tours, and dry show-caves often carry on, and a wet Hoi An has its own quiet charm. But river-based and adventure activities are weather-gated, road and bridge access can be cut for a day or two after a storm, and itineraries get disrupted. If adventure in Central Vietnam is your priority, avoid this window and travel February to August instead.

April heat and Khmer New Year

April is the hottest month across the south and Cambodia, with temperatures that sap your energy by midday. It also coincides with Khmer New Year in mid-April, when many local businesses close in Cambodia and domestic travel surges. The temples stay open, but expect heat and busier roads.

Tet, the Lunar New Year, closures, and price spikes

Tet (late January to mid-February, the date shifts each year) is Vietnam's biggest holiday. The weather is often lovely, but many businesses close for several days, transport books out, and prices rise. The day or two side of Tet is the awkward part. If your trip lands on it, plan well ahead, or aim to arrive just before, when the cities are decorated and the mood is festive but services are still running.

Festival & Holiday Calendar (Travel Impact)

Planning Your Combined Trip

How many days do you need?

A comfortable combined trip of Vietnam and Cambodia runs 10 to 14 days. That is enough for Hanoi and Halong, a Central Vietnam stop, Ho Chi Minh City, and Siem Reap with Angkor. A tighter version covers the headline sights in 7 to 9 days, though it means more internal flights and less downtime. Two weeks lets you add Phong Nha, the Mekong, or a few beach days without rushing.

Vietnam-first or Cambodia-first by season?

In the November to February peak, either direction works because both countries are dry. In the shoulder months, sequence your trip to chase the best weather. A reliable approach: start in Northern Vietnam while it is clear in autumn or spring, move through the center during its February-to-August dry window, then finish in the south and Cambodia during their dry stretch. If you are traveling in the green season, consider front-loading Cambodia and the north and treating Central Vietnam adventure as a separate, dry-season trip.

Cheapest time to go

The lowest prices land in the green and shoulder months, roughly May to early October, when hotels and tours discount to fill rooms. You trade guaranteed sun for savings and quiet. Avoid Tet and the December-to-February peak if budget is your main concern.

FAQ

1. What is the best month to visit Vietnam and Cambodia?

November and December are the safest single-month picks, dry and cool across most regions, with Cambodia firmly in its dry season. February is also excellent and a touch warmer, and it is the better choice if Central Vietnam is on your route.

2. What is the best time to visit Vietnam?

It depends on the region. October to April suits the north, November to April suits the south, and February to August suits the center. If you want one date that works almost everywhere for sightseeing, March is a strong all-round compromise.

3. What is the rainy season in Vietnam and Cambodia?

Cambodia and Southern Vietnam are wet from roughly May to October. Northern Vietnam is wettest in summer, June to August. Central Vietnam runs opposite to the rest, with its rainy and typhoon season from about September to December.

4. Is the rainy or green season worth it?

Yes, if you are flexible. May to June and September to October bring lower prices, fewer crowds, and lush scenery, with rain often limited to afternoon showers. Just avoid Central Vietnam's worst flood months, September to November.

5. When is the best time to visit Angkor Wat?

November to February for the best weather, or May and October if you would rather trade a little rain for thinner crowds and lower prices. November is the quiet sweet spot, fresh and green before the midwinter peak.

6. When is the best time to visit Phong Nha and the caves?

February to August. That is Central Vietnam's dry window, when river levels are stable and cave and jungle adventures run reliably. September to November carries flood and typhoon risk, when river-based trips pause first while dry show-caves often stay open.

7. When is typhoon season in Central Vietnam?

Roughly September to November, with October and November the most affected. Storms can bring heavy rain, flooding, and short-term travel disruption to Hue, Hoi An, and Phong Nha. The wider Vietnamese typhoon season spans summer into late autumn, but the center takes the brunt of it.

8. Is April a good time to visit?

April is great for Northern and Central Vietnam, which are warm and dry. The south and Cambodia are at their hottest, often above 35 Celsius, and Khmer New Year in mid-April brings closures in Cambodia. Plan around the heat and the holiday.

9. Is Tet a good time to travel?

The weather is often great, but many businesses close for several days, transport sells out, and prices climb. If your dates overlap Tet, book everything well in advance, or aim to arrive just before the holiday to catch the atmosphere while services still run.

10. Should I start in Vietnam or Cambodia?

Either works in the November to February peak. In the shoulder months, sequence to follow the dry weather: usually north Vietnam first, then center, then south and Cambodia. Most combined itineraries flow Vietnam to Cambodia and end in Siem Reap.

11. How many days do you need for a Vietnam and Cambodia trip?

Ten to fourteen days is comfortable for the highlights of both countries. Seven to nine days works if you focus on one Vietnam region plus Siem Reap. Two weeks or more lets you add Phong Nha, the Mekong, or beach time without rushing.

12. How early should I book?

For peak season (November to February) and anything around Tet, book flights and key accommodation two to three months ahead. Green-season trips can be arranged with much shorter lead time.