Da Nang Weather in September

The weather of Da Nang in September is not so pleasant. The month falls within the rainy season, featuring frequent rainfall and persistently high humidity. Accompanied by the temperatures mostly sitting at a high level, it makes people feel quite muggy. More notably, Da Nang ushers in the typhoon season in September, and extreme weather may disrupt your travel itinerary. 

However, this month has its exclusive highlight. The Vietnamese Mid-Autumn Festival takes place, offering tourists a chance to immerse themselves in the authentic traditional festive atmosphere.

Temperature

Da Nang climate in September is no longer extremely hot. Daytime high temperatures typically hover between 31 and 32 degrees Celsius (88 - 90 degrees Fahrenheit), rarely exceeding 34℃ (93℉), and occasionally dip to around 28℃ (82℉). However, with humidity climbing to nearly 90%, you may feel like being wrapped in damp clothes. Notably, some indoor attractions in Da Nang are not air-conditioned. The enclosed spaces seem nearly airless, which can easily make you feel breathless after a long stay. Therefore, a portable fan is highly recommended for relief.

Nighttime lows usually stay around 26℃ (79℉), which is the most comfortable temperature for the human body. This means early mornings and evenings are better times for outdoor activities. Whether you take a leisurely walk along My Khe Beach or go cycling around Son Tra Peninsula, you will not break out in a heavy sweat. Occasionally, low temperatures may suddenly surge to 29℃ (84℉), making it a bit hot. It is therefore advisable to avoid booking old homestays without air conditioning, so as not to be troubled by restless sleep at night.

Precipitation

Da Nang weather in September is characterized by frequent rainfall, with an average monthly precipitation of 301 mm and 18 rainy days in total. Statistically, it is hard to arrange a completely rain-free trip, yet there is no need for excessive concern. Prolonged all-day rain is extremely rare locally; most precipitation comes in short-lived showers that seldom disrupt your travel plans a lot.

However, it is worth noting that rainfall in September comes suddenly and fiercely with no advance warning. Even a quick errand just outside the hotel can leave you caught in a sudden downpour and soaked to the skin in an instant. Therefore, at the first sign of rain, you should take shelter nearby right away and resume your trip only after the rain eases off.

Furthermore, in terms of monthly rainfall distribution, early September records relatively less precipitation. If your travel date is fixed in September and you wish to avoid rainy days as much as possible, it is advisable to arrange your trip in early September.

Typhoon

Da Nang in September is likely to experience extreme climate. The city enters its typhoon season this month, usually seeing one to two typhoons make landfall. For example, in September 2025, Typhoon Bualoi attacked Da Nang, unleashing near Category 13 gales powerful enough to rip rooftops off and uproot trees. It also brought extreme rainfall. Torrential downpours lasted nonstop for one to two days, with total rain-free intervals adding up to less than one hour. Such heavy rains quickly triggered severe urban waterlogging, citywide traffic paralysis and mudslides in mountainous areas. If a typhoon strikes during your trip, your travel plans will be completely disrupted.

Daytime / Sunshine Duration

In September, the sun rises in Da Nang at around 5:36 and sets at 17:49, offering roughly 12 hours of daylight - exactly half a full day. That said, you cannot make full use of this daylight for outdoor sightseeing. Frequent downpours hit Da Nang in September, especially in the afternoon, often keeping you confined indoors. Therefore, it is advisable to arrange activities requiring good natural light and weather in the morning, such as visiting the Marble Mountains to capture light pillars. For afternoons, you can opt for indoor pastimes, like trying hands-on coffee brewing at a coffee experience studio.

Kind Reminder: Da Nang’s UV index can reach 11 or above in September, hitting extreme levels. Many travelers mistakenly believe UV radiation is weak amid persistent overcast, sun-shrouded skies this month. In fact, ultraviolet rays easily penetrate cloud layers and cause long-term damage to the skin. Therefore, full sun protection is indispensable whenever you head outdoors, especially in open, unshaded areas such as beaches.

Packing List for Visiting Da Nang in September

Clothes: Given Da Nang’s muggy and rainy weather in September, you’d better opt for lightweight, breathable, and quick-drying garments, including sports T-shirts, athletic shorts, and cotton-linen shirts. Ladies looking to take stylish travel shots can also pack several dresses and skirts. For visits to cooler mountainous areas, bring an extra light jacket and a pair of thin pants. Travelers planning to swim and relax by the sea are recommended to prepare a long-sleeved UV-protective swimsuit.

Shoes: Frequent downpours hit Da Nang in September, often leaving roads heavily flooded. Sport sandals are the top footwear choice for this season. They dry quickly after getting wet and fit snugly around your feet, unlike slippers which can easily be swept away by flowing rainwater. Additionally, they provide great foot support, letting you walk for long hours without feeling tired. If you prefer not to wear open-toe shoes, sneakers are a good alternative. Just be sure to bring along a pair of waterproof shoe covers.

Travel Highlight: Vietnamese Mid-Autumn Festival

The 15th day of the eighth lunar month, corresponding to September 15, 2026, marks the lively Mid-Autumn Festival in Da Nang. Visitors can watch spectacular dragon and lion dance performances free of charge at various scenic spots and sample authentic Vietnamese mooncakes from street stalls.

The unmissable highlight is the Mid-Autumn Festival celebration in Hoi An Ancient Town, 30 kilometers (19 miles) away from downtown Da Nang. As night falls, the entire old town is lit up by thousands of lanterns. You can buy a lotus lantern, take a traditional wooden boat to the middle of the Thu Bon River, light the lantern, make a wish, and gently set it adrift on the water. Traditional music shows and lantern parades are also held along the riverbank, permeating every corner with a warm festive vibe.

Tips

1. After rainfall, steer clear of low-lying waterlogged zones. Keep an eye out for hidden potholes under standing water and loose manhole covers, to prevent stumbling and accidental injury.

2. Monitor typhoon forecasts in advance, and arrange your travel schedule outside typhoon-affected periods to avoid disruptions brought by strong winds and heavy downpours. However, even if you happen to encounter a typhoon during your trip, there is no need for excessive worry, for local life and tourism can generally return to normal within 1 - 2 days.

3. September 2nd marks Vietnam’s National Day and September 15th is the Mid-Autumn Festival. Da Nang sees a sharp surge in tourist crowds around these two festivals. If you dislike crowded scenes and long queues, it is advisable to avoid traveling during these two periods.