Southern Vietnam climate
Before looking at the weather specifics for May, it’s important to understand the general climate of southern Vietnam. The region has a tropical monsoon climate, which means high temperatures throughout the year and two distinct seasons:
- Dry season (November – April): Marked by minimal rainfall, warm temperatures, and comfortable humidity.
- Rainy season (May – October): Brings increased humidity and short but heavy afternoon rain showers.
Travel Tip: The seasons in southern Vietnam follow a different pattern than in other regions. While northern Vietnam starts getting hot, and central Vietnam experiences its dry season with some occasional rain, the south moves into a period with higher humidity and more frequent rain showers.
Weather in South Vietnam in May
May marks the beginning of the rainy season, bringing higher humidity, increased rainfall, and consistently warm temperatures. Daytime highs range from 29–35°C (84–95°F), while nighttime temperatures stay between 24–28°C (75–82°F). The heat is similar to April but feels more intense due to rising humidity levels.
Rainfall becomes more frequent, averaging 100–200 mm (4–8 inches). The humidity rises to 75–85%, making the air feel noticeably heavier.
Rain showers are common, but they usually occur in the afternoon and last for a short period rather than all day. The shift into the wet season means more cloud cover compared to earlier in the year, though there are still many dry and sunny hours each day.
Beach conditions in South Vietnam in May
Many visitors come to South Vietnam for its food, history, and vibrant cities, but beach destinations like Phu Quoc, Con Dao, and Mui Ne also play a huge role in attracting travelers, especially in the warmer months.
May is a transition month, meaning beach conditions can be great, but there is some risk of changing weather as the rainy season approaches.
Phu Quoc and Con Dao may have sunny days, but occasional rain showers and slightly rougher seas can start to appear. Mui Ne is generally drier than the islands, but humidity increases.
Travel Tip: For more reliable beach conditions in May, central Vietnam (Da Nang, Hoi An, Nha Trang) offers hot, dry weather and calm seas.
Is May a good time to visit South Vietnam?
May is an okay month to visit South Vietnam, but it marks the transition to the rainy season. Temperatures remain high, and humidity increases, making city sightseeing in Ho Chi Minh City more tiring. Short but intense afternoon showers start to appear, but they don’t last all day, so travel plans aren’t heavily disrupted. The Mekong Delta remains a good destination, with fuller canals and the beginning of fruit season. Beaches can still be enjoyable, though occasional rain may occur. If you don’t mind some heat and occasional showers, May is still a decent time to visit.
Best places to visit in May
May marks the transition from the dry season to the rainy season in South Vietnam. While temperatures remain high, rainfall becomes more frequent, especially in the afternoons. Below, we highlight some of the best destinations to visit this month, focusing on their seasonal advantages. If you want a complete list of must-visit places in South Vietnam, be sure to check out our full travel guide: Places to Visit in South Vietnam.
1. Mui Ne – Dry and Sunny with Fewer Tourists
Mui Ne is one of the best destinations in May, as it experiences less rainfall compared to other coastal areas in South Vietnam. Despite the start of the rainy season elsewhere, Mui Ne remains relatively dry, making it a great option for beach lovers. The strong winds have calmed, making swimming conditions more pleasant. Travelers can explore the Red and White Sand Dunes, take a scenic walk along the Fairy Stream, or visit the local fishing village for fresh seafood. Compared to peak months, there are fewer tourists, allowing for a more relaxed atmosphere.
Learn more in our dedicated guide: Mui Ne in May.
2. Ho Chi Minh City – Hot and Humid but Culturally Lively
May is a warm and humid month in Ho Chi Minh City, with frequent afternoon showers providing some relief from the heat. While the weather can be unpredictable, mornings are usually dry, making it a good time for sightseeing. Visitors can explore the War Remnants Museum, the Notre-Dame Cathedral, and Ben Thanh Market before the midday heat sets in. Labour Day (May 1) is a public holiday, leading to some festivities and local celebrations. In the evenings, rooftop bars offer a great escape with stunning city views and a cool breeze.
Learn more in our dedicated guide: Ho Chi Minh City in May.
3. Con Dao – Early Rainy Season but Good for Diving
Con Dao sees the start of the rainy season in May, but the first half of the month can still have decent beach weather. While occasional showers begin to appear, they are usually short-lived. Diving conditions remain good, with clear waters and abundant marine life. A special highlight of May is the beginning of the turtle nesting season, offering visitors a unique opportunity to witness sea turtles laying eggs on the island’s beaches. For those seeking an off-the-beaten-path experience, Con Dao’s serene environment makes it an attractive choice.
Learn more in our dedicated guide: Con Dao in May.
4. Mekong Delta – Lush and Vibrant with Increased Water Levels
The Mekong Delta becomes greener and more vibrant in May as rainfall replenishes the waterways. While some areas may experience short tropical showers, boat trips through the canals and floating markets remain a great way to explore the region. Cai Rang Floating Market in Can Tho is particularly lively in the early morning, while fruit orchards are abundant with fresh tropical produce. For those looking to escape the heat, a homestay in the Delta offers an authentic cultural experience, allowing travelers to engage with local farming and cooking activities.
Learn more in our dedicated guide: Mekong Delta in May.
5. Phu Quoc – Unpredictable Weather but Possible Sunny Days
Phu Quoc enters its rainy season in May, making it a less ideal beach destination. However, the rainfall is often intermittent, meaning sunny days can still be enjoyed between showers. Travelers who don’t mind occasional rain can take advantage of lower accommodation prices and fewer tourists.
The island’s lush landscapes become even more vibrant, making a visit to waterfalls like Suoi Tranh particularly rewarding. Boat trips to nearby islands may be limited due to rough seas, but local markets and seafood restaurants remain excellent places to explore the island’s culinary scene.
Learn more in our dedicated guide: Phu Quoc in May.
Events and holidays in May
May in southern Vietnam is a mix of historical remembrance and religious festivals. The main nationwide holiday is International Workers’ Day (May Day), which is observed on May 1st, directly following Reunification Day (April 30th)—making this a long holiday for many locals. Another major event is Buddha’s Birthday (Vesak), celebrated at Buddhist temples across the country. Some coastal communities may also hold a Whale Worshiping Festival (Cau Ngu Festival) during this period.
International Workers’ Day (May Day) (May 1)
May 1st is International Workers’ Day, a public holiday in Vietnam. While it is primarily a day off for workers rather than a large public festival, it is often combined with Reunification Day (April 30th) for a long weekend. Many Vietnamese use this time to travel domestically.
For travelers: Expect higher prices for flights, hotels, and transportation as many locals take trips, especially to beach destinations like Phu Quoc, Vung Tau, and Nha Trang. If you plan to travel around this time, book accommodations and transport in advance.
Buddha’s Birthday (Vesak) (Lunar April 15, usually May)
Buddha’s Birthday, also known as Vesak, is one of the most significant Buddhist celebrations in Vietnam. On this day, monks and worshippers gather at pagodas to pray, make offerings, and release lanterns into the sky or water. In southern Vietnam, major Buddhist temples such as Vinh Trang Pagoda (My Tho), Xa Loi Pagoda (Ho Chi Minh City), and Truc Lam Zen Monastery (Da Lat) hold special ceremonies.
For travelers: If you’re interested in Buddhism and temple culture, this is a great time to visit pagodas. You can witness ceremonial prayers, vegetarian food offerings, and sometimes even candlelit processions or floating lanterns. However, expect temples to be crowded with worshippers.
Whale Worshiping Festival (Cau Ngu Festival) (if it falls in May)
This traditional fishermen’s festival honors Ca Ong (whales), believed to protect those at sea. While the date varies by region, it is sometimes held in May in fishing communities like Phu Quoc, Vung Tau, and Mekong Delta coastal towns. The festival includes boat processions, sacrifices, and traditional dances.
For travelers: If you’re in a coastal fishing town, check if there are local celebrations happening. This is a great opportunity to see Vietnamese maritime traditions, but since it’s a local event, it may not be widely advertised. Ask locals or tour guides for details.
Travel tips for Southern Vietnam in May
May marks the beginning of the rainy season in southern Vietnam, meaning you should prepare for both hot and humid conditions as well as sudden downpours. Below are key travel tips to help you make the most of your trip this month.
What to Bring
- Light and quick-drying clothing – The heat and humidity can be intense, so pack breathable fabrics like cotton or linen. Quick-drying clothes are also useful if you get caught in the rain.
- Rain protection – A compact umbrella or lightweight rain poncho is useful for sudden showers.
- Waterproof footwear – Flip-flops or sandals are good for the rain, but if you plan on walking a lot, consider water-resistant shoes.
- Mosquito repellent – With the rains starting, mosquitoes become more active, so bring a strong repellent with DEET or natural alternatives.
Beach Holiday Alternatives
May is not the best time for a beach holiday in southern Vietnam, as the rainy season starts bringing frequent showers and rougher seas. If you’re looking for a beach destination with better weather, consider heading to:
- Nha Trang – A great alternative with much drier conditions in May.
- Da Nang & Hoi An – Central Vietnam enters its dry season, offering ideal beach conditions.
Accommodations
- Transition to the low season – Tourist numbers start to decrease, especially later in the month, leading to better hotel availability.
- More affordable prices – You may find discounts on accommodations, especially in beach destinations like Phu Quoc and Con Dao.
- Less need for early booking – While you should still book in advance for the best options, last-minute deals may be available, particularly in cities like Ho Chi Minh City.
Mosquito Precautions
- Use insect repellent – Apply repellent, especially in the evening and in areas with standing water, such as the Mekong Delta.
- Choose accommodations with mosquito nets – This is particularly important if staying in eco-lodges or homestays in nature.
- Wear long sleeves and pants in the evening – This is an effective way to avoid mosquito bites, especially in rural areas.
Heat-Related Tips
- Avoid peak sun hours – Between 11 AM and 3 PM, temperatures can be very high, so plan indoor or shaded activities during this time.
- Stay hydrated – Drink plenty of water, coconut water, or electrolyte drinks to avoid dehydration.
- Cool down strategically – Museums, shopping malls, and cafes with air conditioning offer a great way to escape the heat for a while.
Rain-Related Tips
- Expect short but heavy showers – Rain is often intense but usually doesn’t last long, so don’t let it disrupt your plans too much.
- Plan flexible activities – Outdoor plans might need to be adjusted based on the weather, so keep some indoor options in mind.
- Carry a dry bag – Useful for keeping electronics and important documents safe during sudden downpours.
Visiting More of Vietnam
If you’re traveling beyond South Vietnam, note that weather varies significantly across the country in May:
- Central Vietnam – The dry season is in full swing, making it the best choice for beachgoers. More info: Central Vietnam in May
- Northern Vietnam – May is hot and humid, with occasional rain, and a good time for exploring Hanoi and Ha Long Bay. More info: North Vietnam in May
- Overall Vietnam weather – For a countrywide weather overview, check this guide: Vietnam in May
