Last updated: August 28, 2025
September in Ho Chi Minh City, Vietnam, brings a blend of warmth and humidity, characterized by maximum temperatures reaching up to 35°C (94°F) and an average of 28°C (82°F). The city experiences a notable amount of rain, with 280 mm (11.0 in) of precipitation falling over 27 days, creating a lush, vibrant environment. As humidity levels soar to 89%, visitors should brace for a tropical feel, making it essential to stay hydrated and seek shelter during downpours. This dynamic weather pattern shapes both the daily life of locals and the experience of those exploring the city.
In Ho Chi Minh City during September, temperatures begin to settle into a warm rhythm, with a minimum of 24°C (76°F) and peak highs reaching up to 35°C (94°F). The average temperature hovers around 28°C (82°F), maintaining a consistently balmy atmosphere. This month shows a slight cool-down from the soaring max temperatures seen in the earlier months, like April and May, where highs frequently reached 37°C (99°F). While September's temperatures remain comfortably warm, they signal the transition towards the wet season, bringing with it increased humidity and the occasional rain shower, making the city's vibrant streets even more lush and alive.
In September, Ho Chi Minh City experiences a significant amount of rainfall, with total precipitation reaching 280 mm (11.0 in) across 27 days of the month. This places September among the wettest months, following the peak periods in July and August. The consistent downpour, characteristic of the city's rainy season, not only highlights a gradual decline from August's staggering 297 mm but also reflects the region's overall trend of increasing rainfall as the year progresses, especially from May through September. While the frequency of rainy days may suggest frequent showers, the accumulated precipitation indicates that these rains often come in heavy bursts, showcasing the tropical climate's unpredictable nature. As the city transitions into October, the precipitation levels remain high, ensuring that September serves as a captivating cusp in the city's annual weather pattern.
In September, Ho Chi Minh City experiences a high humidity level of 89%, indicating a continuation of the intense moisture that characterizes the city's late summer months. The trend begins in May, with humidity levels jumping to 80%, and steadily climbing each month, peaking in August at an oppressive 90%. As the city transitions into September, there's a slight dip from the summer peak, yet levels remain high, fostering a tropical climate that can feel stifling. This pattern of elevated humidity balances out as the city heads toward October, where humidity slightly decreases to 87%, hinting at the onset of the drier season. Overall, September's humidity reflects the typically sultry and humid atmosphere that defines Ho Chi Minh City's climate from mid-year to early autumn.
In September, Ho Chi Minh City experiences a UV Index of 13, categorizing it as extreme and resulting in a brisk burn time of just 10 minutes. This month continues a trend of high UV exposure that has persisted since January, with readings consistently in the extreme category from February through August. The intense sunlight remains a significant consideration for residents and visitors alike, prompting necessary precautions to protect skin health. As the year moves toward its end, the UV Index begins to taper off slightly, indicating just a marginal relief in UV intensity by November. To stay informed about daily variations and make the most of your time outdoors, check out the detailed insights at Ho Chi Minh City UV Index.
UV Risk Categories
In September, Ho Chi Minh City basks in a generous 260 hours of sunshine, marking a slight dip from the vibrant summer months. This transition into fall mirrors a trend observed throughout the year, where sunshine peaks in March with 329 hours before gradually tapering off as the year progresses. The city experiences a warm, sunlit farewell to summer, with September offering a blend of golden rays and the anticipation of cooler days ahead. As the months unfold, residents and visitors alike can relish in the pleasant warmth, even as October follows with a return to 252 hours of bright skies, emphasizing the enduring charm of this bustling metropolis through the changing seasons.
As September arrives in Ho Chi Minh City, the likelihood of sunny weather takes a notable dip, with only a 9% chance of sunshine. This marks a significant decline from the previous months, especially when compared to the 18% in July and 15% in August. The trend reveals a pattern where the summer months gradually transition into the more overcast and rainy season, culminating in the sharp decrease in sunshine this month. Travelers should prepare for increased cloud cover and the potential for rain, making September one of the less favorable times for those hoping to bask in the sun.
In September, Ho Chi Minh City enjoys a consistent 12 hours of daylight, mirroring the rich abundance of sunlight seen throughout the summer months. As the year progresses from January's shorter 11 hours to the extended daylight of mid-year, September marks a transition as daylight begins to wane. This steady duration reflects the tropical climate of the region, where brightness prevails, allowing locals and visitors alike to revel in outdoor activities. With nights growing a bit longer, September serves as a gentle reminder of the changing seasons while still basking in the warmth of the sun.
In September, Ho Chi Minh City experiences a gentle breeze with an average wind speed of 1.9 m/s (approximately 4 mph), slightly lower than the preceding summer months. This time of year marks a transition as the winds begin to calm after the heightened gusts of July, which recorded the highest speed at 2.6 m/s (6 mph). While September’s winds remain mild, they contrast with the summer’s refreshing currents, creating a serene atmosphere as the city prepares to embrace the cooler months of October and November. Overall, the wind patterns throughout the year highlight a gradual increase in speeds from the early months, peaking in mid-summer, before settling into a more tranquil rhythm as the year draws to a close.
Weather in Ho Chi Minh City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ho Chi Minh City, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, noticeable differences emerge. September experiences higher temperatures, with averages around 28°C (82°F) and maximums reaching 35°C (94°F), accompanied by significant rainfall totaling 280 mm (11.0 in) over 27 days and high humidity at 89%. In contrast, January sees slightly cooler temperatures, with an average of 27°C (81°F) and a maximum of 34°C (94°F). Precipitation is considerably lower during this month, with only 44 mm (1.7 in) falling over just 6 days, and humidity drops to a more comfortable 65%. For a detailed overview of the climate during January, you can check Ho Chi Minh City weather in January.
September and February offer contrasting weather experiences. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). This month is characterized by high humidity at 89% and significant rainfall, totaling 280 mm (11.0 in) over 27 days. In stark contrast, February features slightly cooler temperatures, with a minimum of 20°C (68°F) and an average of 27°C (81°F), reaching up to 35°C (95°F) at times. The precipitation is drastically lower, with only 15 mm (0.6 in) recorded over just 2 days and humidity at a more comfortable 61%. For more detailed information on February weather, visit Ho Chi Minh City weather in February.
September and March in Ho Chi Minh City present quite different weather experiences. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). The month is characterized by high humidity at 89% and substantial rainfall, totaling 280 mm (11.0 in) across 27 rainy days. In contrast, March features slightly warmer temperatures, with a minimum of 23°C (73°F) and a maximum of 36°C (98°F), leading to a higher average of 29°C (84°F). March enjoys much lower humidity at 58% and significantly less rainfall, with only 17 mm (0.7 in) recorded over just 3 days. For more details, check out Ho Chi Minh City weather in March.
In comparing the weather of September and April, we observe distinct differences in temperature and precipitation. September experiences slightly lower average temperatures, ranging from a minimum of 24°C (76°F) to a maximum of 35°C (94°F), with high humidity at 89%. In contrast, April showcases warmer conditions, with temperatures reaching a maximum of 37°C (99°F) and a lower humidity of 60%. Additionally, rainfall is significantly higher in September, with 280 mm (11.0 in) over 27 days, whereas April sees only 74 mm (2.9 in) across 14 days, allowing for more dry periods. For a detailed look at April's climate, you can check out Ho Chi Minh City weather in April.
September and May showcase distinct weather patterns in Ho Chi Minh City. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). The month is characterized by substantial rainfall, totaling 280 mm (11.0 in) over 27 days and high humidity at 89%. Conversely, May presents slightly warmer conditions, with temperatures ranging from a minimum of 25°C (77°F) to a peak of 37°C (99°F), averaging 29°C (85°F). Precipitation is lower at 182 mm (7.2 in) over 23 days, and humidity, while still high, is more manageable at 80%. For more details, check Ho Chi Minh City weather in May.
In comparing the weather of September and June, both months showcase similar minimum temperatures, hovering around 24°C (76°F). However, June averages slightly warmer with a peak temperature reaching up to 35°C (95°F), compared to September’s maximum of 35°C (94°F). Precipitation levels are notably higher in September, with 280 mm (11.0 in) over 27 days, contrasting with June’s 211 mm (8.3 in) across 26 days. Humidity is also marginally higher in September at 89%, while June maintains a slightly lower level at 87%. For more details, check out Ho Chi Minh City weather in June.
When comparing the weather in September and July, we see some similarities and slight differences. Both months showcase warm temperatures, with minimums hovering around 24°C (76°F) and average highs of 28°C (82°F) in September and 28°C (83°F) in July. However, September tends to experience slightly higher maximum temperatures, reaching up to 35°C (94°F), compared to July's peak of 34°C (94°F).
Precipitation is quite prominent in both months, but September sees a bit more rain, with 280 mm (11.0 in) over 27 days, compared to July's 266 mm (10.5 in) over 29 days. The humidity remains consistent at 89% throughout both months, making the overall feel quite muggy. For more insights into July's weather, you can refer to Ho Chi Minh City weather in July.
In comparing the weather between September and August, we see that both months have similar average temperatures, with September experiencing slightly lower minimum temperatures (24°C vs. 25°C). August has slightly less rainfall, totaling 297 mm over 28 days compared to September's 280 mm across 27 days, although both months have high humidity levels around 89% to 90%. Overall, while August and September share comparable temperatures, September tends to be just a bit drier. For more detailed information, you can check Ho Chi Minh City weather in August.
In September, the weather is characterized by slightly higher temperatures, with a maximum of 35°C (94°F), while October sees a small decrease to a maximum of 34°C (93°F). Both months have a minimum temperature of around 24°C (76°F), with an average of 28°C (82°F) in September and October alike. Precipitation remains high in both months, with September experiencing 280 mm (11.0 in) over 27 days, while October has a marginally lower total of 268 mm (10.6 in) across 28 days. Humidity levels are also comparable, with September at 89% and October slightly lower at 87%. For more detailed insights, check out Ho Chi Minh City weather in October.
In September, the weather is generally warmer, with minimum temperatures around 24°C (76°F) and maximums reaching up to 35°C (94°F). The month also experiences significant rainfall, totaling 280 mm (11.0 in) over 27 days, contributing to a high humidity level of 89%. In contrast, November sees slightly cooler temperatures, with lows of 22°C (72°F) and highs around 34°C (93°F). Precipitation also decreases to 165 mm (6.5 in), spread across 19 days, while humidity remains relatively high at 87%. For more details, check out the full Ho Chi Minh City weather in November.
In September, the weather tends to be hotter and more humid, with minimum temperatures around 24°C (76°F) and average highs reaching 35°C (94°F). The month experiences considerable rainfall, accumulating 280 mm (11.0 in) over 27 days, making it one of the wettest times of the year with a high humidity level of 89%. In contrast, December offers a more temperate climate with minimum temperatures dropping to 20°C (69°F) and average highs around 33°C (92°F). Rainfall decreases significantly to 73 mm (2.9 in) over just 10 days, resulting in a lower humidity level of 80%. The change in weather from September to December transforms the atmosphere into a more comfortable setting, making December an ideal time to explore the area. For a detailed look at what to expect, you can check out Ho Chi Minh City weather in December.
In September, Ho Chi Minh City experiences a noticeable shift in weather, characterized by its high humidity and frequent rainfall, making it one of the wettest months of the year. With a wet and tropical climate, the city endures approximately 27 rainy days, contributing to a significant increase in precipitation compared to the drier months preceding it. While temperatures remain warm, averaging around 28°C, the oppressive humidity can make it feel even hotter, setting this month apart from the rest. If you're planning a visit, be prepared for the lush and vibrant natural scenery that often follows the rain, and for more detailed insights, check out Ho Chi Minh City Climate.