Summer in Hoi An means long, hot days, plenty of sunshine, and those warm, tropical nights that really define central Vietnam. Daytime highs usually hit between 33°C and 35°C, with nights staying cozy around 25°C. The season runs from June through August, and during this time, the town’s golden beaches and lantern-lit streets feel especially alive.
Humidity stays high, but you’ll often get clear skies, making it a good bet for outdoor fun. Rain shows up now and then, especially toward late August, but showers tend to be brief and, honestly, kind of refreshing.
This mix of heat, sun, and the occasional rain shapes daily life in Hoi An during summer.
With this climate in mind, you can plan both cultural adventures in the Ancient Town and lazy afternoons at the beach. Knowing what the weather’s like helps you pick the best time to visit, what to do, and how to actually stay comfortable. Check out this guide on staying comfortable if you’re curious.
Overview of Hoi An’s Summer Climate
Hoi An sits on the coast in central Vietnam, so it gets a warm, humid tropical climate during summer. High temperatures, lots of sun, and some short bursts of rain—especially as the season goes on—are the norm.
Tropical Climate Characteristics
Hoi An has a tropical monsoon climate, so summers are hot, humid, and shaped by seasonal winds. From May through August, you’ll notice longer days and loads of sunshine.
Rainfall starts off relatively low in early summer but creeps up by August. Showers usually don’t last long, so you can still get outside even on wetter days.
The East Sea brings breezes that cut the heat a bit, but humidity stays high, making the air feel warmer than the numbers say.
This combo of high humidity, strong sun, and quick rain showers pretty much sums up Hoi An’s summer. You should expect both hot, sunny days and the odd quick storm.
Temperature Ranges During Summer
Hoi An stays hot all summer. Average daytime highs land between 31°C and 33°C (88°F–91°F). Nights drop to around 25°C (77°F), but it’s still warm.
Here’s a quick peek at the monthly averages:
| Month | Avg High | Avg Low |
|---|---|---|
| May | 31°C | 25°C |
| June | 32°C | 26°C |
| July | 31°C | 26°C |
| August | 31°C | 25°C |
These numbers barely change, so you can count on steady warmth all season. The hottest stretch hits in June and July, with mid-day temps often pushing above 33°C.
Since the temperature rarely drops, you’ll want to prepare for heat both day and night.
Humidity and Sunshine Levels
Humidity sticks around in Hoi An during summer, often hitting 75–85%. The air can feel heavy and sticky, especially at midday. Sweat doesn’t evaporate fast, which adds to the sticky feeling.
Even with the humidity, summer brings some of the longest sunshine hours of the year. In June, you might get up to 11 hours of sunshine per day. It’s a good time for the beach or wandering the city.
Rainfall isn’t as wild as the wet season. June averages about 99 mm of rain, and July gets around 90 mm. Showers come and go quickly, and the sun usually returns soon after.
With all this—humidity, sun, and the odd rain—you’ll want sun protection, light clothes, and a rain poncho to keep comfortable.
Monthly Breakdown: Summer Weather in Hoi An
Summer in Hoi An brings long days, high humidity, and rising heat. Rain picks up as summer goes on, with the most downpours showing up near the end.
May Weather Overview
May kicks off the hottest stretch in Hoi An. Daytime highs reach 31–32°C (88–90°F), and nights stay warm at about 25°C (77°F). Humidity climbs, but rain is still moderate compared to what’s coming.
You’ll see about 8–9 hours of sunshine per day, making it one of the brighter months. Rain falls on fewer days than during the peak monsoon, so you can still get outside and hit the beach.
Winds are light, and the sea stays calm, which is great for swimming and boat rides. If you like it warm but not super wet, May is a good window before the heavy rains hit.
June Weather Overview
June brings some of the sunniest days in Hoi An, with up to 11 hours of sunshine daily. Temperatures top out around 33°C (91°F), and nights don’t cool down much. The heat can feel pretty intense, especially at midday.
Rain shows up more often, though storms are usually short and heavy instead of lasting all day. Humidity climbs above 80%, which makes the air feel thick.
Most tourists head out early or late to dodge the strongest heat. Beaches like An Bang and Cua Dai are busy, and sea conditions are usually good for swimming.
July Weather Overview
July keeps the heat coming, with daytime temps often at 32–34°C (90–93°F). Nights stay warm, around 26°C (79°F). Humidity is still high, and rain gets heavier compared to June.
You’ll probably see more afternoon thunderstorms, but they’re usually quick and help cool things down.
Sunlight drops a bit to 7–8 hours per day. You can still sightsee, but it’s smart to take breaks indoors or find some shade. Bring light, breathable clothes and lots of water.
August Weather Overview
August is one of the wettest months in Hoi An. Rain falls more often, with 15–20 rainy days in the month. Showers can get heavy, and sometimes flooding hits low-lying spots.
Daytime highs average 32–33°C (90–91°F), but humidity makes it feel even hotter. Sunshine drops to about 5–6 hours per day, so expect more clouds.
The sea can get choppy with stronger winds and heavier rain. You can still hit the beach, but it’s smart to check local forecasts before swimming. August shifts toward the rainy season, so keeping your plans flexible is a good idea.
Rainfall and Wet Season Patterns
Hoi An’s tropical climate switches between dry and wet seasons. Rainfall really shapes daily life, travel, and even the Hoai River.
Rain Frequency and Intensity
From September to January, Hoi An heads into its wet season. October and November bring the most rain, with November alone averaging about 450 mm, making it the wettest month of the year.
Rain doesn’t fall all the time, but when it comes, it’s usually short and heavy. These downpours can push up water levels in the Hoai River, sometimes flooding the old town.
During summer, especially June through August, rainfall drops. You’ll see quick showers, but they don’t mess with plans like the peak wet season does. Average precipitation is around 90–120 mm, spread over a few days.
Humidity stays high all year, peaking when the dry season shifts to wet. Even light rain days feel heavy.
Impact on Local Activities
Rain patterns have a big impact on your Hoi An experience. Heavy autumn rains can block access to outdoor spots and sometimes flood the ancient streets near the river. When that happens, boats take over where you’d usually walk.
In summer, lighter showers usually move on fast, so you can keep sightseeing or biking with little trouble. Rain often rolls in late afternoon, so getting outside earlier helps you dodge it.
Markets, tailors, and indoor cultural sites stay open no matter the weather. River activities like basket boat rides or lantern festivals depend on water levels. Flooding or strong currents might force a pause.
If you love photography, the wet season brings unique scenes. Reflections on wet streets and mist over the river look completely different from the bright, dry months.
Best Time to Visit Hoi An in Summer
Summer in Hoi An means lots of sun, warm breezes, and high humidity. You can enjoy the beaches and outdoor activities if you time your trip for the most comfortable months and avoid the hottest or stormiest stretches.
Ideal Months for Travel
The sweet spot to visit Hoi An in summer is from May to early July. Rainfall stays low, and skies are mostly clear. Average daytime temps range from 30°C to 34°C (86°F to 93°F). It’s warm, but with some shade or a sea breeze, it’s manageable.
These months are perfect for hitting Cua Dai Beach or An Bang Beach, where the water is calm and inviting. Evenings cool off enough for wandering the lantern-lit Old Town.
June often brings lively festivals and outdoor markets. If you stay in central Hoi An, you can easily reach both the historic spots and the coast, making it a great time for mixing sightseeing and relaxation.
Avoiding Extreme Weather
From late July through September, things get tougher. Humidity and heat spike, with temps often above 35°C (95°F). Extended outdoor time can feel rough. The sun is harsh in the afternoon, so you might want to stick to mornings or evenings.
September signals the rainy season, with heavy showers and a higher risk of storms. Floods can hit low-lying Old Town and mess up travel plans.
To dodge the worst, visit earlier in the season. Lightweight clothes, sun protection, and staying hydrated will help you handle the tropical climate better.
Popular Summer Activities and Destinations
When you visit Hoi An in summer, you get the best of both outdoor relaxation and cultural fun. The warm, dry weather makes beaches inviting, the river calm, and the historic town full of life.
Beach Activities at An Bang Beach
An Bang Beach is a favorite for swimming and sunbathing. Water stays warm in summer, around 28–30°C, so you can swim all day. Lifeguards watch the main swimming spots, and you’ll find lounge chairs for rent.
If you’re feeling active, try paddleboarding or rent a kayak. Surfing isn’t huge in summer since the water’s calm, but small waves are good for beginners.
Food stalls and casual restaurants line the beach, offering fresh seafood and cold drinks. Evenings are especially nice, as the heat drops and the crowds thin out.
Tips for visitors:
- Bring sunscreen and water, since shade is hard to find.
- Arrive before 10 AM or after 4 PM for cooler weather.
- Pick a beachside café if you want a shady spot to chill between swims.
Exploring the Hoai River
The Hoai River winds right through the center of Hoi An, making it the backdrop for so many summer activities. If you’re up for it, hop on a traditional wooden boat in the late afternoon when the sun drops and the air finally feels a bit cooler.
Most boat trips last about 30–45 minutes, giving you a close-up look at the Old Town’s riverside buildings. Once evening comes, lanterns start to light up the water, and honestly, it’s a pretty magical scene.
If you’d rather take it slow, stroll along the riverbanks. Cafés and tiny shops line the way, offering shaded spots to sit and watch the world go by. Photographers love this area at sunset—the light gets soft, and the streets start buzzing.
Practical notes:
- Boat rides usually take cash only.
- Crowds pick up after 6 PM, so if you want some peace, try to get there earlier.
Cultural Events and Festivals
Hoi An packs its calendar with cultural activities, but summer evenings just feel different. The Lantern Festival is the big one—it happens on the 14th day of the lunar month. When the festival starts, electric lights dim, and colorful lanterns take over the Old Town and the Hoai River.
You can join everyone else and release a small paper lantern onto the water. It’s a simple thing, but it sticks with you, especially if you’re by the river or out on a boat.
Street performers and musicians show up during the festival and make the whole night feel special. Even when it’s not festival night, you’ll spot cultural shows, craft workshops, and night markets that show off local traditions.
Key details:
- The Lantern Festival usually runs from early evening until about 10 PM.
- It gets packed, so show up early for a good spot by the river.
- You don’t pay to join, but lanterns for release cost a little.
Travel Tips for Visiting Hoi An During Summer
Hoi An’s summer brings real heat, strong sun, and a lot of tourists. You’ll want to plan for both the weather and the crowds if you want a comfortable trip.
What to Pack for the Weather
Go for light clothes made from breathable fabrics like cotton or linen. Those fabrics help you stay cooler in the sticky humidity. Skip heavy or dark clothes—they just make you hotter.
Bring a wide-brimmed hat, UV-blocking sunglasses, and reef-safe sunscreen with high SPF. The sun gets intense, especially in the early afternoon, so you really do need protection. A small umbrella works as portable shade when you’re out walking.
Footwear matters too. Grab comfortable sandals or breathable walking shoes because Hoi An’s cobblestone streets can be tough on your feet. If you’re hitting beaches like An Bang or Cua Dai, pack a quick-dry swimsuit and something light to cover up.
A refillable water bottle is a must. Most hotels and cafés offer filtered water, so you can cut down on plastic and stay hydrated.
Staying Comfortable in Heat and Humidity
Summer highs hit about 33–34°C (91–93°F), and humidity often climbs above 70%. Try to do outdoor activities in the early morning or later in the day. Spend midday inside—maybe at a museum, a café, or just relaxing by your hotel pool.
Stick to shaded streets and tree-lined parts of Old Town. Shops and restaurants usually blast the fans or air conditioning, so you can cool off between walks.
Drink water as often as you can. If you sweat a lot, electrolyte packets help. Locals love fresh coconut water or herbal tea, and you’ll find those everywhere.
When it’s time to sleep, pick a place with air conditioning or at least a strong fan. Nights don’t cool off much, with lows around 26°C (79°F), so you’ll appreciate the extra comfort.
Navigating Summer Crowds
Hoi An gets busy in summer, with travelers from all over and lots of Vietnamese families on school break. Beaches and the Old Town fill up fast, especially from late afternoon into the evening.
If you want to dodge the crowds, walk around Old Town between 11 AM and 2 PM. Not many people are out then because of the heat, so it’s quieter and better for photos or sightseeing if you can handle the temperature.
Weekends get even busier with local visitors. For a calmer beach day, go on a weekday. If you’re after a peaceful meal, book a table or eat before the dinner rush.
Old Town changes traffic rules after 3 PM, turning the center pedestrian-only. It’s easier to walk, but that also means more foot traffic. Show up earlier if you want to see the streets before they fill up and catch a glimpse of local scooters.
Seasonal Events and Local Culture
Hoi An mixes its hot summer weather with cultural traditions that really bring the place alive. Major holidays and festivals shape daily routines, and you get to experience both family-focused celebrations and public events that show off the town’s heritage.
Vietnamese New Year in Hoi An
Vietnamese New Year, or Tết Nguyên Đán, is the biggest holiday in Hoi An. It usually happens in late January or February, depending on the lunar calendar. Families clean and decorate their homes, make offerings for ancestors, and share big meals together.
You’ll see streets full of kumquat trees, peach blossoms, and red decorations for luck. Most shops and markets close for a few days, so plan ahead if you’re visiting at this time.
Public spaces light up with cultural performances, from traditional music to dances. Fireworks shows also happen, though not every year. If you’re in town, join the locals for temple visits or catch a lion dance in the street.
For travelers, it’s a rare look at how important family and community are here. Some services pause, but the festive mood and warm welcome stick around.
Traditional Festivities and Lanterns
Hoi An’s lantern culture stands out, especially during the monthly Lantern Festival. On the 14th day of the lunar month, the ancient town switches off its electric lights, and suddenly, colorful paper lanterns glow all along the Thu Bon River.
You can grab a small lantern, pop a candle inside, and gently set it floating on the water. Locals say this brings good luck and peace, and honestly, who doesn’t want a bit of that?
People—both locals and travelers—gather along the riverbanks, soaking in a scene that somehow feels both lively and peaceful at once.
Besides the lantern festival, you might stumble upon seasonal events, like the Dragon Boat Festival in early summer.
Crowds gather to watch boat races on the Thu Bon River, and families prepare traditional foods like sticky rice cakes just for the occasion.
These celebrations really show off Hoi An’s identity as a trading port with all sorts of cultural influences, while still holding tight to its old rituals.
If you join in, you’ll start to see how history, religion, and daily life all blend together in ways that feel both visible and meaningful.