Last updated: August 28, 2025
Experience the vibrant weather of Nha Trang, Vietnam in September, where temperatures typically reach a maximum of 33°C (92°F) and hover around a pleasant average of 28°C (84°F). As the month progresses, you can expect a comfortable minimum temperature of 25°C (77°F), perfect for exploring this coastal paradise. However, be prepared for frequent rainfall, as 167 mm (6.6 in) of precipitation falls over 23 days, contributing to the region's lush landscapes. With humidity levels around 88%, the air is rich and tropical, enhancing the allure of this stunning beach destination. Whether you're soaking up the sun or enjoying local festivities, September offers a lively backdrop for your Nha Trang adventure.
September in Nha Trang, Vietnam, sees temperatures that smoothly transition from the summer heat, reflecting the region's tropical climate. With a minimum of 25°C (77°F) and a comfortable average of 28°C (84°F), the days remain pleasantly warm. The peak temperatures reach up to 33°C (92°F), making it one of the last months of significant warmth before the cooler months set in. This pattern shows a slight decrease from the sweltering highs of the preceding months, offering a perfect blend of warmth and comfort for beach-goers and outdoor enthusiasts alike. As the month progresses, the weather remains inviting, ideal for exploring Nha Trang's stunning coastline and vibrant culture.
In September, Nha Trang experiences a notable uptick in precipitation, with an average of 167 mm (6.6 in) of rainfall spread over 23 days. This month marks a significant transition as the wet season intensifies, leading into even rainier October and November, where totals soar to 270 mm (10.6 in) and 470 mm (18.5 in) respectively. Compared to the preceding months, September's rainfall exceeds that of August's 96 mm (3.8 in), signaling a dramatic shift in weather patterns as tropical showers become more frequent. As the monsoon takes hold, residents and visitors alike prepare for frequent downpours, reshaping the vibrant coastal landscape of this beautiful Vietnamese city.
As September rolls into Nha Trang, the coastal city's humidity begins to peak, reaching an impressive 88%. This marks a continuation of the rising trend seen through the summer months, where humidity levels have steadily climbed from 84% in July and soared to an average of 87% in August. With October following close behind at 89%, it’s clear that this tropical paradise experiences its most humid conditions as the year progresses. Visitors and locals alike can expect a lush, almost tropical atmosphere, but should also prepare for the accompanying stickiness that defines the region's wet season.
As September rolls into Nha Trang, the UV Index remains a daunting 14, categorizing the sun exposure as extreme and reaffirming the pattern seen throughout the year. This consistent high UV level underscores the necessity for effective sun protection, with a burn time of just 10 minutes. The trend of extreme UV exposure persists from the previous months, particularly evident since March, when the UV Index peaked at 16. Travelers and locals alike should remain vigilant and adopt precautions to shield their skin from the sun's intense rays, as highlighted in the ongoing climatic patterns. For further insights and detailed forecasts, check out the Nha Trang UV Index.
UV Risk Categories
As September arrives in Nha Trang, Vietnam, it continues the city's tradition of basking in abundant sunshine, offering an impressive 292 hours of radiant daylight. This month, while slightly lower than the peak sun-drenched days of spring, still boasts a delightful amount of sunshine. From January's modest 241 hours to March's peak of 325 hours, the trend reveals a steady progression of daylight that creates a beautiful backdrop for beachgoers and adventurers alike. Summer months maintain a consistent glow, with both July and August offering 315 hours each. As the year transitions into autumn, September remains a luminous highlight, ensuring that every sunset tells a story of warmth and light as the year begins to wane.
As you plan your visit to Nha Trang, Vietnam, September stands out as one of the months with the lowest likelihood of sunny weather, boasting only a 13% chance of sunshine. This marks a notable dip in contrast to the more radiant months preceding it, particularly March, which enjoys a sunny disposition with a 59% chance. Following the summer, where July and August register 26% and 25% respectively, September’s cloudy demeanor may lead travelers to consider alternative plans or seek indoor activities while the rain showers roll through. With the sun’s retreat, the latter half of the year, including October and November, continues to show persistently low probabilities of clear skies, emphasizing the need for vigilance in weather planning during this period.
In Nha Trang, Vietnam, September marks a continuation of the summer's generous daylight hours, with an average of 12 hours of sunlight illuminating the city each day. This consistent daylight spans from March through September, creating a sweet spot for outdoor activities and beach explorations. As the year transitions into October, daylight begins to taper off, returning to 11 hours—a subtle reminder of the approaching cooler months. The overall trend showcases a warm, sunlit stretch during the middle of the year, enhancing Nha Trang's allure for visitors seeking sun-soaked adventures.
In September, Nha Trang experiences a notable dip in wind speed, averaging just 1.8 m/s (4 mph), making it the calmest month of the year. This gentle breeze contrasts sharply with the robust winds of January and November, which peak at 5.8 m/s (13 mph) and 4.2 m/s (9 mph), respectively. As the summer months transition into fall, the gradual decrease in wind speed—starting from May's peak of 2.2 m/s (5 mph)—creates an inviting atmosphere for beachgoers and aquatic enthusiasts. The tranquil conditions in September make it an ideal time to enjoy Nha Trang's stunning coastal charm without the interruptions of stronger winds typical of earlier months.
Weather in Nha Trang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nha Trang, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (84°F), reaching highs of 33°C (92°F). This month experiences significant rainfall, totaling 167 mm (6.6 in) over 23 days, alongside high humidity levels at 88%. In contrast, January offers a cooler climate, where temperatures range from a minimum of 20°C (68°F) to an average of 24°C (76°F) and a maximum of 28°C (83°F). The precipitation in January is lower, with 128 mm (5.0 in) spread across 15 days and humidity at a slightly lower 84%. For more details, you can check Nha Trang weather in January.
September and February offer contrasting weather experiences. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 33°C (92°F), with an average of 28°C (84°F). This month is characterized by high humidity levels at 88% and significant precipitation, totaling 167 mm (6.6 in) over 23 days. In contrast, February sees milder temperatures, with a minimum of 19°C (66°F) and a maximum of 29°C (84°F), averaging 24°C (76°F). Precipitation in February is much lower, at 47 mm (1.9 in) across just 9 days, accompanied by a slightly lower humidity of 79%. For a more detailed look at the weather conditions in February, you can refer to Nha Trang weather in February.
September and March showcase distinct weather patterns in Nha Trang. September is characterized by warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (84°F), reaching up to a maximum of 33°C (92°F). However, this warmth comes with higher humidity at 88% and considerable rainfall, totaling 167 mm (6.6 in) over 23 days. In contrast, March offers a milder climate, featuring a minimum temperature of 21°C (70°F) and an average of 26°C (79°F), peaking at 31°C (88°F). March also experiences significantly less precipitation, with only 38 mm (1.5 in) over 10 days, and lower humidity at 75%. For more information about the weather in March, you can check Nha Trang weather in March.
In comparing the weather in September and April, September tends to be warmer and more humid. With average temperatures hovering around 28°C (84°F), it features high humidity at 88%, making it feel sweltering. In contrast, April has slightly cooler temperatures, with an average of 27°C (82°F) and significantly less humidity at 72%. Precipitation is also a major differentiator; September experiences much higher rainfall at 167 mm (6.6 in) over 23 days, while April sees only 54 mm (2.1 in) across 12 days. For more detailed insights on April weather, you can check Nha Trang weather in April.
In comparing the weather patterns of September and May, we see that both months are warm, with average temperatures hovering around 28°C (84°F). However, September tends to be slightly cooler at a minimum of 25°C (77°F) compared to May's minimum of 26°C (78°F). May experiences slightly higher maximum temperatures, peaking at 34°C (94°F), while September reaches a maximum of 33°C (92°F). Precipitation also differs notably; September sees more rain with 167 mm (6.6 in) over 23 days, while May has only 102 mm (4.0 in) across 17 days. Additionally, humidity levels are higher in September at 88%, compared to May's 77%. For more detailed information about May weather, visit Nha Trang weather in May.
When comparing the weather between September and June, September tends to be slightly cooler, with a minimum temperature of 25°C (77°F) and an average of 28°C (84°F), while June boasts a slightly higher minimum at 26°C (79°F) and an average temperature of 30°C (86°F). Additionally, September experiences significantly more rainfall, with a total of 167 mm (6.6 in) spread over 23 days, compared to June's 61 mm (2.4 in) over just 14 days. Humidity levels are similar in both months, with September at 88% and June at 85%. For more detailed insights into June weather, you can check Nha Trang weather in June.
In comparing the weather between July and September, both months experience warm temperatures, with July slightly warmer on average at 29°C (85°F) compared to September's average of 28°C (84°F). July also sees higher maximum temperatures, peaking at 34°C (93°F), while September reaches a maximum of 33°C (92°F). However, September is significantly wetter, receiving 167 mm (6.6 in) of precipitation over 23 days compared to July's 79 mm (3.1 in) over 18 days. Humidity levels are high in both months, with September slightly more humid at 88% compared to July's 84%. For more detailed insights, you can check Nha Trang weather in July.
In comparing the weather between August and September, we see that both months maintain a warm climate, with September averaging slightly lower temperatures—28°C (84°F)—compared to August's 29°C (85°F). However, September is characterized by increased precipitation, receiving 167 mm (6.6 in) over 23 days, which is significantly higher than August's 96 mm (3.8 in) over 19 days. Humidity remains relatively high in both months, with September at 88% and August at 87%. For a more detailed look at August's specific weather patterns, you can check out Nha Trang weather in August.
In September, the weather in Nha Trang features temperatures ranging from a minimum of 25°C (77°F) to a maximum of 33°C (92°F), with an average temperature of 28°C (84°F). However, the month is also marked by significant rainfall, totaling 167 mm (6.6 in) over 23 days, resulting in high humidity levels at 88%.
By contrast, October brings slightly cooler average temperatures, peaking at 32°C (89°F) and dipping to a minimum of 25°C (77°F), with an average of 27°C (81°F). Precipitation significantly increases to 270 mm (10.6 in) spread over 27 days, resulting in a marginal rise in humidity to 89%. This shift highlights a trend towards wetter conditions as the transition from September to October occurs. For more detailed information, you can check Nha Trang weather in October.
In September, Nha Trang experiences warm temperatures with a minimum of 25°C (77°F) and an average of 28°C (84°F), peaking at a maximum of 33°C (92°F). The month also sees considerable rainfall, totaling 167 mm (6.6 in) spread over 23 days, while humidity remains high at 88%. In contrast, November brings slightly cooler temperatures, with a minimum of 23°C (73°F) and an average of 26°C (79°F), reaching a maximum of 31°C (87°F). However, November is significantly wetter, with precipitation reaching 470 mm (18.5 in) over 24 days and a marginal increase in humidity to 91%. For more detailed information, you can refer to Nha Trang weather in November.
September and December in Nha Trang present distinct weather patterns. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 33°C (92°F), with an average of 28°C (84°F). The month is characterized by high humidity at 88% and significant rainfall, with 167 mm (6.6 in) of precipitation over 23 days. In contrast, December brings cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 28°C (84°F), averaging 25°C (77°F). However, December experiences even higher precipitation, with 269 mm (10.6 in) over 21 rainy days, and maintains a similar humidity level of 89%. For more detailed information, you can check Nha Trang weather in December.
In September, Nha Trang experiences a distinct shift in weather, marked by high humidity and frequent rainfall, which sets it apart from the drier summer months. The average temperatures hover comfortably around 28°C (84°F), while occasional peaks reach up to 33°C (92°F), providing a warm but slightly less intense atmosphere. With 23 days of precipitation totaling about 167 mm (6.6 in), visitors should come prepared for showers that often bring refreshing breaks from the heat. This month paints a contrasting picture compared to the dry season, making it a rejuvenating period for the lush landscapes of the area. For a more comprehensive understanding of what to expect, check out Nha Trang Climate.