Hoi An Weather in July

July is one of the hottest months in Hoi An, when high temperatures combined with high humidity create a particularly muggy feeling. The weather is mostly sunny with intense UV radiation. In addition, as the last month of the dry season, rainfall picks up slightly but remains low overall. While visiting Hoi An in July presents certain challenges, it is still doable.

Temperature

In July, Hoi An gets little relief from the intense heat; only early mornings and late evenings are relatively comfortable. To make matters worse, humidity often stays above 80%, making the apparent temperature roughly 3 degrees Celsius (37 degrees Fahrenheit) higher than the actual reading.

Daytime highs typically range from 34 to 37℃ (93 - 99℉). At midday, a ten-minute walk through the unshaded streets of the ancient town will leave you soaked in sweat. Even seeking shelter in the shade hardly brings any respite - the thick, sticky heat clings to your body.

Early mornings and evenings are milder, with temperatures dropping to 26 - 30℃ (79 - 86℉). Although the weather is still hot and humid and you may sweat when going out, it won’t completely discourage you from exploring outside like at midday. However, it’s still best to avoid intense, physically demanding activities. Instead, take a leisurely stroll along the Thu Bon River for a cool river breeze, or take a seat at the ancient town’s night market to enjoy local snacks and iced drinks for a truly enjoyable experience.

Unshaded Streets of Ancient Town

Taking Photos by Thu Bon River

Precipitation

July marks the final month of the dry season in Hoi An, so rainfall gradually rises to a moderate level. The average monthly precipitation is around 90 mm, with rain falling on 19 days of the month - meaning you will likely encounter several showers during your trip. There is no need to worry excessively, though. The rain rarely lasts nonstop all day; most downpours pass within an hour, so your schedule will not be fully disrupted.

However, there are two key points worth noting: First, the rainfall is usually intense, leading to rapid flooding on some low-lying roads in the ancient town. Please be careful when walking to avoid slipping and falling. Second, downpours tend to strike suddenly: one moment it can be clear and sunny, and the next it may pour heavily. Therefore, as soon as you notice raindrops, it is a wise action to take shelter in nearby shops right away.

Daytime / Sunshine Duration

In Hoi An, the sun rises at around 5:23 and sets at about 18:22 in July, providing nearly 13 hours of daylight. However, due to the intense midday heat, only about half of this time is truly suitable for outdoor sightseeing, so actual visiting hours are fairly limited.

In addition, Hoi An has an average of 6 hours of sunshine per day in July. While this brings ample sunshine, it carries a high risk of UV exposure. The UV index for the month generally exceeds level 11, in the extreme category. Even on cloudy days, you risk getting tanned or sunburned without proper protection. In open areas such as beaches and rice fields, uncovered skin may turn red in just 30 minutes.

Hoi An Beach in Scorching Sun

Packing List for Hoi An Trip in July, 2026

For exploring the ancient town: Choose lightweight and breathable summer clothes such as short‑sleeved T‑shirts, shorts, skirts, and dresses. Light‑colored garments are better, since dark fabrics absorb more heat and make you feel even hotter. A high‑SPF sun protection jacket is also a must. For footwear, pick comfortable sneakers or sports sandals that won’t tire your feet, as sightseeing involves plenty of walking.

For beach activities: Go with quick‑drying sports T‑shirts and sports shorts. Since seawater reflects a large amount of UV rays, long‑sleeved sun‑protective swimsuits are highly recommended for water play. For footwear, simply choose easy‑to‑slip‑on, water‑proof slippers or flip‑flops.

How to Have a Comfortable Trip in Hoi An in July

July is not the most pleasant month in Hoi An in terms of climate conditions, but with sensible planning, you can still enjoy a comfortable and fulfilling trip. This one-day itinerary is for your reference.

From 5:30 to 10:00, temperatures are relatively low, making it the perfect time of the day to cycle or hike through the rice fields. In July, the rice fields are at their lushest, with waves of rich green swaying gently in the wind. You can ride a bicycle slowly along the field paths and admire the peaceful rural morning scenery.

From 10:00 to 15:30, temperatures and UV radiation both reach their daily peaks, so visiting indoor attractions in the ancient town is an ideal way to escape. You can explore Quan Cong Temple and Fujian Assembly Hall, appreciating delicate ancient wood carvings and historical stone stelae. You can also take part in hands-on activities indoor including lantern making and silk tie-dye.

From 15:30 to 18:00, the intense heat gradually fades, and you can head to Hoi An Beach for seaside fun. During the dry season in July, the offshore waters remain calm and clear, with underwater visibility hitting an annual high of 15 to 30 meters (49 to 98 feet), allowing you to clearly observe coral reefs and tropical fish while snorkeling.

From 18:00 to 19:30, the weather cools down and bright sunset glow spreads across the sky. You can take a rowboat tour on the Thu Bon River and watch the riverside lanterns flicker to life one by one, which pair beautifully with the orange sunset glow. After dark, you may wander the lantern-lit night market of the ancient town, taste local snacks such as fried spring rolls, and experience Hoi An’s romantic and lively atmosphere.

Fujian Assembly Hall

Hoi An Lantern Street

Tips

1. Please keep electrolyte drinks, essential balm and heat-relief medications in your bag. These will help you stay hydrated, relieve heat-related discomfort, and greatly lower the risk of heatstroke. However, even if you feel unbearably hot, avoid consuming large amounts of iced drinks, as they can irritate your stomach and cause acute gastrointestinal distress.

2. We recommend carrying a compact, foldable umbrella with you. It will effectively shield you from strong sunlight, while also keeping you prepared for sudden afternoon showers. Furthermore, the flag stone paths in the ancient town often become slippery after rain, so we advise wearing non-slip shoes and avoiding high heels to prevent accidental slips and falls.

3. In July, Hoi An's climate is hot and humid, which easily breeds mosquitoes and significantly increases the risk of dengue fever transmission. We recommend applying long-lasting insect repellent to your entire body before going out and using an electric mosquito repellent before bedtime for protection. If you develop symptoms such as fever, headache, or muscle soreness after being bitten, please go to hospital immediately without delay.