Last updated: August 28, 2025
September in Da Nang, Vietnam brings a mix of warmth and moisture, making it a vibrant yet humid time of year. With maximum temperatures soaring up to 34°C (94°F) and an average of 29°C (84°F), the heat often feels intense. However, the minimum temperature remains a comfortable 25°C (77°F), allowing for cooler evenings. The month is characterized by significant precipitation, totaling 246 mm (9.7 in) over 23 rainy days, creating lush landscapes but also necessitating preparation for wet conditions. With humidity levels reaching around 88%, visitors should expect a tropical atmosphere, perfect for savoring the city's rich culture while staying hydrated.
In September, Da Nang welcomes a refreshing transition as the temperatures begin to cool slightly from the sweltering summer months. With minimum temperatures hovering around 25°C (77°F) and maximums reaching 34°C (94°F), the month averages a comfortable 29°C (84°F). This shift is indicative of the approaching autumn, making September an ideal time for explorers and beach-lovers alike to enjoy the city’s stunning coastline without the overpowering heat of mid-summer. The lingering warmth, paired with a slight decrease in humidity, creates a pleasant atmosphere perfect for outdoor activities and cultural experiences. As the month progresses, the city’s vibrant landscapes and rich heritage become even more inviting.
September in Da Nang, Vietnam marks a significant shift in the weather pattern, bringing a substantial increase in precipitation. With 246 mm (9.7 in) of rain measured over 23 days, it stands out as one of the wettest months of the year, nearly doubling the rainfall of May and far surpassing the drier months earlier in the year. This surge in rain not only indicates the onset of the rainy season but also sets the stage for the even heavier rainfall that follows in October and November, which experience totals of 533 mm (21.0 in) and 596 mm (23.5 in), respectively. The consistent downpour in September can often lead to lush landscapes but also requires locals and visitors alike to prepare for potential disruptions caused by the weather.
September in Da Nang, Vietnam, marks the transition into one of the most humid months of the year, with levels soaring to 88%. This month tends to see humidity steadily increase from the more moderate 75% in April, peaking towards the end of the summer season. Following a series of warm months where humidity fluctuated between 80% and 87%, September's dampness signals not only the lingering heat but also hints at the approaching challenges of the rainy season. As the year progresses towards October and November, humidity continues to rise, culminating at a notable 91% in November, making Da Nang's weather distinctively tropical and humid during this time.
In September, Da Nang experiences a notable UV Index of 13, which falls within the extreme exposure category. This indicates that while the intensity has slightly decreased from the peak levels earlier in the summer months, sun protection remains essential, with a rapid burn time of just 10 minutes. Over the months leading up to September, the UV Index has consistently hovered between 12 and 15, showcasing a trend of intense sunlight typical for this coastal paradise. As summer transitions into fall, it's crucial for residents and visitors alike to heed sun safety measures and stay informed about UV levels. For more detailed information on UV exposure in Da Nang, check out the Da Nang UV Index.
UV Risk Categories
In September, Da Nang basks in a delightful 302 hours of sunshine, marking a subtle transition as summer begins to wane. This month's sunlight reflects a pattern of consistent brightness throughout the year, peaking in May with an impressive 329 hours. Following the sunny months, September's light is still abundant, though it indicates the gradual return to the cooler and less sun-drenched days of autumn, as evidenced by the dwindling hours from the vibrant summer months. The balance of sunlight not only enhances the city's stunning coastal beauty but also makes it a perfect time for travelers to enjoy the lingering warmth before the approaching cooler months.
In September, Da Nang sees a 23% chance of sunny weather, which aligns with the downward trend witnessed during the summer months. Following a peak in February at 55%, the probability of sunshine gradually diminishes, with August and September experiencing some of the lowest chances at 22% and 23%, respectively. This suggests that while September still offers some potential for clear skies, travelers should prepare for a more unpredictable mix of weather as the region transitions toward the rainy season. As such, those planning a visit might want to embrace flexibility in their itinerary to make the most of whatever sunshine they can capture.
In Da Nang, Vietnam, September marks the transition into autumn with 12 hours of daylight, continuing the trend established in the preceding months of June through August. This consistent daylight duration reflects a stable pattern where the summer months enjoy the longest days, peaking at 13 hours in June, before gradually tapering off as the year progresses. Following September, daylight begins to decline again in October, settling back to 11 hours by the end of the year. This predictable rhythm of daylight not only enhances the city’s vibrant atmosphere but also offers ample opportunities for outdoor adventures throughout the month.
As September unfolds in Da Nang, Vietnam, the average wind speed hovers around 2.8 m/s (6 mph), marking a pleasant transition into the autumn months. This slight uptick from the summer's gentle breezes indicates a gradual shift, as winds begin to gather momentum in anticipation of October's stronger gusts that reach 3.3 m/s (7 mph). Throughout the year, the wind patterns showcase a captivating ebb and flow: after a dip in wind speeds during the warmer summer months, September offers a refreshing prelude to the more invigorating winds of late fall. This seasonal shift plays a crucial role in shaping the coastal atmosphere, enhancing the serene beauty of Da Nang’s picturesque landscape while inviting both locals and travelers to embrace the gentle embrace of the sea breeze.
Weather in Da Nang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Da Nang, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinct contrasts in weather. In September, temperatures are notably higher, averaging around 29°C (84°F), with maximums reaching up to 34°C (94°F). The month also experiences significant rainfall, totaling 246 mm (9.7 in) over approximately 23 days, accompanied by high humidity levels of 88%. In contrast, January offers a milder climate, with average temperatures of 22°C (73°F), peaking at 28°C (84°F). While January sees less precipitation at 161 mm (6.4 in) and fewer rainy days (19), the humidity remains relatively high at 86%. For more detailed insights, you can check Da Nang weather in January.
September and February present a notable contrast in weather. September is characterized by warm temperatures, with a minimum of 25°C (77°F) and an average of 29°C (84°F), peaking at 34°C (94°F). It also experiences significant rainfall, with 246 mm (9.7 in) over 23 days, contributing to a high humidity level of 88%. In contrast, February offers cooler conditions, featuring a minimum temperature of 16°C (61°F) and an average of 22°C (73°F), with a maximum of 30°C (85°F). This month sees much lower precipitation at 84 mm (3.3 in) across 12 days and slightly lower humidity at 83%. For those interested in the specifics of February weather in Da Nang, more details can be found here: Da Nang weather in February.
In September, the weather tends to be much warmer and more humid than in March. With average temperatures reaching around 29°C (84°F) and maximums soaring up to 34°C (94°F), September experiences a significant amount of precipitation at 246 mm (9.7 in) over 23 days, resulting in high humidity levels of 88%. In contrast, March offers a more moderate climate, with average temperatures of 25°C (77°F) and maximums of 31°C (89°F). Precipitation is considerably lower at 80 mm (3.2 in), spread out over just 11 days, and humidity is slightly reduced at 78%. For a more detailed look at the weather in March, you can visit Da Nang weather in March.
September and April exhibit notable differences in weather patterns. In September, temperatures tend to be warmer, with a minimum of 25°C (77°F) and an average of 29°C (84°F), peaking at 34°C (94°F). This month also experiences high humidity at 88% and considerable rainfall, totaling 246 mm (9.7 in) over 23 days. In contrast, April brings slightly cooler temperatures, with a minimum of 20°C (69°F) and an average temperature of 26°C (80°F), while also reaching up to 34°C (94°F). Precipitation in April is significantly lower at 79 mm (3.1 in) across just 10 days, and humidity is more comfortable at 75%. For more details, you can check Da Nang weather in April.
In comparing the weather between September and May, both months offer warm temperatures, but there are some notable differences. September experiences a slightly higher minimum temperature of 25°C (77°F) and averages around 29°C (84°F), with maximum temperatures reaching up to 34°C (94°F). However, it also sees significantly more rainfall, with 246 mm (9.7 in) spread over 23 days and a high humidity level of 88%.
May, on the other hand, has a marginally lower minimum temperature of 23°C (74°F) but can peak at a higher maximum of 36°C (96°F). The month is considerably drier, receiving only 108 mm (4.3 in) of precipitation over 14 days, along with a lower humidity level of 80%. For a more detailed look at May's weather, you can visit Da Nang weather in May.
In comparing the weather of September and June, it becomes evident that both months have their unique characteristics. September experiences slightly cooler temperatures, with averages around 29°C (84°F) and a maximum of 34°C (94°F), while June is hotter, reaching up to 37°C (98°F) on some days, although with an average temperature of 30°C (87°F). Notably, September sees significantly more rainfall, with 246 mm (9.7 in) over 23 days, contributing to a higher humidity level of 88%. In contrast, June receives only 69 mm (2.7 in) of rainfall over 13 days, maintaining a slightly lower humidity of 85%. For more detailed insights, you can check Da Nang weather in June.
In comparing the weather between September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 34°C (94°F), while July features a slightly warmer range, from a minimum of 26°C (79°F) to a maximum of 36°C (97°F). Precipitation is notably higher in September, with 246 mm (9.7 in) falling over 23 days, compared to July's 146 mm (5.8 in) over 18 days, reflecting a wetter climate in September. Humidity levels are similar, at 88% in September and slightly lower at 85% in July. For more detailed insights on July weather, visit Da Nang weather in July.
In comparing the weather between August and September, both months experience high temperatures, but September sees a slight decrease in the average temperature, dropping from 30°C (86°F) in August to 29°C (84°F). August typically registers hotter maximum temperatures, reaching up to 36°C (97°F), while September peaks at 34°C (94°F). Notably, September experiences significantly more precipitation, with 246 mm (9.7 in) spread over 23 days, compared to August's 142 mm (5.6 in) over 19 days. This increase in rainfall accompanies a slight rise in humidity, with September averaging 88% compared to August's 87%. For a more detailed look at the weather during August, you can visit Da Nang weather in August.
In September, the weather in Da Nang is characterized by warm temperatures with a minimum of 25°C (77°F), an average of 29°C (84°F), and a maximum of 34°C (94°F). Despite the heat, the month experiences significant rainfall, with 246 mm (9.7 in) of precipitation over 23 days and a humidity level of 88%.
In contrast, October sees a slight drop in temperatures, with a minimum of 23°C (73°F), an average of 27°C (80°F), and a maximum of 32°C (90°F). However, precipitation significantly increases to 533 mm (21.0 in) over 25 days, along with a slight rise in humidity to 90%. For more detailed insights into October weather, visit Da Nang weather in October.
September and November exhibit notable differences in weather patterns. In September, temperatures are warmer with a minimum of 25°C (77°F) and an average high of 34°C (94°F), accompanied by significant rainfall totaling 246 mm (9.7 in) over 23 days, resulting in high humidity levels around 88%. In contrast, November experiences cooler temperatures, with a minimum of 21°C (71°F) and an average high of 30°C (85°F). However, the month is marked by even heavier rainfall, reaching 596 mm (23.5 in) over the same number of days, while humidity slightly increases to 91%. For more detailed information, you can check Da Nang weather in November.
September and December in Da Nang display notable differences in weather patterns. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 34°C (94°F), with an average of 29°C (84°F). The month is characterized by high humidity at 88% and considerable rainfall, totaling 246 mm (9.7 in) over approximately 23 days. Conversely, December sees cooler temperatures, with a minimum of 18°C (64°F) and a maximum of 28°C (83°F), averaging 23°C (73°F). It also experiences higher precipitation at 355 mm (14.0 in), spread across 24 days, while the humidity remains slightly higher at 89%. For more detailed information on the weather in December, check out Da Nang weather in December.
In September, Da Nang experiences a noticeable shift as the tropical heat intensifies, with daytime temperatures typically peaking around 34°C (94°F) and an average of 29°C (84°F). The month is characterized by high humidity levels, reaching about 88%, which combined with frequent rain, leads to a distinctly muggy atmosphere. With 246 mm (9.7 in) of precipitation spread over 23 days, September stands out as one of the wettest months of the year, contrasting sharply with the drier, hotter conditions of summer. This blend of warmth and rainfall not only enriches the landscape but also adds a unique charm to the city. For a deeper understanding of Da Nang's weather throughout the seasons, check out Da Nang Climate.