Last updated: August 28, 2025
In September, Cu Chi, Vietnam, experiences a warm tropical climate with maximum temperatures reaching 35°C (95°F) and an average of 28°C (82°F). The minimum temperature dips to 24°C (75°F), providing a comfortable range for outdoor activities. However, the month brings significant rainfall, with a total precipitation of 295 mm (11.6 in) over 27 days, contributing to the region's lush greenery. Humidity remains high at 89%, adding to the tropical ambiance. Visitors should be prepared for both the heat and the frequent showers, making it a quintessential wet season in this vibrant locale.
In September, Cu Chi, Vietnam, experiences a warm tropical climate that is characteristic of its wet season. The minimum temperature settles at a comfortable 24°C (75°F), while the average remains consistent at 28°C (82°F), making it a pleasant time for outdoor exploration. With a maximum temperature peaking at 35°C (95°F), the heat can be intense but, thankfully, is accompanied by humidity that typically brings refreshing rain. This month marks a slight dip in high temperatures compared to the scorching peak of summer months, reflecting a transition towards cooler days ahead in the fall. Overall, September offers inviting warmth for those eager to experience Cu Chi’s lush landscapes and rich history.
In September, Cu Chi, Vietnam experiences significant rainfall, with a total precipitation of 295 mm (11.6 in) occurring over approximately 27 days. This pattern marks a slight decrease from the previous month, August, which recorded an impressive 309 mm (12.2 in) over the same number of days. The heavy rains in September continue the trend of peak moisture levels experienced during the rainy season, which typically intensifies from June to August, showing a gradual tapering as the month progresses. The persistence of rainfall in September reinforces the region's lush vegetation and vibrant ecosystems, while signaling the transitional shift towards the drier months ahead.
In Cu Chi, Vietnam, September marks a slight dip in humidity as it settles at 89%, a small decline from the peak summer months of August with 90%. This patterns reflect a gradual transition as the year progresses, with humidity levels generally rising from a more comfortable 65% in January to nearly 90% during the height of the rainy season. As autumn approaches, the humidity remains fairly high, reminiscent of the oppressive summer months, yet hints at the impending change with October's humidity dipping to 87%. The persistent moisture throughout these months, particularly in the late summer and early fall, creates a lush and vibrant landscape typical of this tropical region, inviting both natural beauty and a sense of heaviness in the air.
In September, Cu Chi experiences an UV Index of 13, categorizing it as extreme with a burn time of just 10 minutes. As part of a larger trend observed from January to August, the UV levels in Cu Chi remain consistently high, primarily falling between 13 and 15, indicating that outdoor enthusiasts need to take precautions year-round. Notably, this month marks a slight decrease from the peak indices seen in March and April, yet caution is still essential. With prolonged exposure to the sun, even short bursts can lead to skin damage. For further insights into UV levels throughout the year, check Cu Chi UV Index.
UV Risk Categories
September marks a subtle transition in Cu Chi, Vietnam, as the sunshine hours dip slightly to 258 hours, providing a gentle pull back from the vibrant summer months. Following a lively peak in March with 327 hours, the sunshine gradually wanes as the rainy season approaches, with April and May still basking in abundant light at 314 and 310 hours, respectively. The trend continues through the latter months of the year, as August and September both hover around the low 200s, suggesting a seasonal shift. Yet, even with the notable decrease, September still enjoys a generous amount of sunlight, allowing visitors to bask in the warm glow amidst the lush greenery, before the sunshine hours slowly begin to rise again in October. This rhythm of light not only enhances Cu Chi's enchanting landscapes but also invites travelers to explore the rich culture in the warm embrace of autumn.
As September rolls into Cu Chi, Vietnam, the likelihood of sunny weather takes a notable dip, with only a 9% chance of sunshine. This marks a significant decline from the bright days of earlier months, particularly March, which boasts a 55% chance of sun. The transition into the latter half of the year shows a consistent decrease in sunny days, suggesting that September is one of the cloudier months. With this trend, visitors in September are more likely to encounter overcast skies than bask in sunlight, making it wise to prepare for the possibility of rain while enjoying the lush greenery that the season brings.
In Cu Chi, Vietnam, the month of September enjoys a generous 12 hours of daylight, continuing a consistent trend seen throughout the rainy season. As spring fades into summer, daylight duration remains stable at an impressive 12 hours from March to September, providing ample time for both exploration and relaxation. This balance of daylight creates a vibrant atmosphere, ideal for soaking up the rich culture and stunning landscapes of the region. As the year progresses into October, daylight begins to taper back to 11 hours, marking a gradual transition into the shorter days of the later months, yet the lingering daylight of September invites residents and travelers alike to revel in the beauty of the landscape just a bit longer.
In September, Cu Chi experiences a gentle average wind speed of 1.9 m/s (4 mph), which is consistent with the calm breezes felt earlier in the year. This month marks a transition as the winds dip slightly from their peak in July at 2.6 m/s (6 mph), yet maintain a pleasant rhythm comparable to the mild conditions of January and February. The overall trend showcases an increase in wind speed from the start of the year, peaking in the summer months and gradually tapering off as the rainy season approaches. As the winds soften, the lush landscapes of Cu Chi continue to thrive, creating a serene atmosphere for both residents and visitors alike.
Weather in Cu Chi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Cu Chi, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warmer temperatures, with minimums around 24°C (75°F) and average highs reaching up to 35°C (95°F). This month also sees significant rainfall, totaling 295 mm (11.6 in) over 27 days, contributing to a high humidity level of 89%. In contrast, January offers a more temperate climate, featuring a slightly cooler minimum temperature of 20°C (67°F) and the same maximum of 35°C (96°F). Rainfall is minimal in January, accumulating only 35 mm (1.4 in) across just 5 days, with humidity dropping to 65%. For those interested in more details, you can explore the Cu Chi weather in January.
In comparing the weather of September and February, September tends to be much wetter with an average precipitation of 295 mm (11.6 in) spread across 27 days, while February sees significantly less rainfall at just 10 mm (0.4 in) over only 2 days. The temperatures in February range from a minimum of 20°C (68°F) to a maximum of 36°C (97°F), slightly warmer than September's range of 24°C (75°F) to 35°C (95°F). Additionally, February has a lower humidity level at 61%, compared to September's high humidity of 89%. For a closer look at February weather specifics, you can check Cu Chi weather in February.
Comparing the weather in September and March reveals distinct differences. September is characterized by a warm and humid climate, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 35°C (95°F). It experiences significant rainfall, averaging 295 mm (11.6 in) over 27 rainy days and a high humidity level of 89%. In contrast, March features slightly cooler temperatures, with a minimum of 22°C (72°F) and a maximum of 38°C (100°F), but it is markedly drier, receiving only 16 mm (0.6 in) of precipitation over just 4 days. The humidity also drops significantly to around 58%. For more details on the weather in March, you can check Cu Chi weather in March.
When comparing the weather between September and April, a few striking differences emerge. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 35°C (95°F), with an average temperature of 28°C (82°F). However, this month is characterized by considerably high humidity at 89% and significant rainfall, accumulating 295 mm (11.6 in) over 27 days. In contrast, April features slightly higher temperatures, with a minimum of 24°C (75°F), an average of 30°C (86°F), and a peak of 38°C (101°F). April experiences much lower humidity at 60% and significantly reduced precipitation, totaling only 90 mm (3.6 in) across 15 days. For more detailed weather insights, check out Cu Chi weather in April.
September and May both feature warm temperatures, but there are some notable differences in their weather patterns. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 35°C (95°F), with an average of 28°C (82°F) and high humidity at 89%. This month also experiences significant rainfall, with 295 mm (11.6 in) of precipitation over 27 days. In contrast, May sees slightly higher temperatures, with a minimum of 25°C (77°F) and a maximum reaching 38°C (101°F). The average temperature in May is 29°C (85°F), but it has less rainfall at 201 mm (7.9 in) over 23 days and lower humidity at 80%. For more detailed insights into the weather in May, you can visit Cu Chi weather in May.
When comparing the weather in September and June, we find some similarities and differences. Both months feature a minimum temperature of 24°C (75°F) and an average temperature around 28°C, but June has a slightly warmer maximum temperature of 35°C (96°F) compared to September's 35°C (95°F). Rainfall varies, with September experiencing 295 mm (11.6 in) of precipitation over 27 days, making it wetter than June, which receives 228 mm (9.0 in) across 26 days. Furthermore, humidity levels are comparable, with September at 89% and June slightly lower at 87%. For more details on June weather, you can check out Cu Chi weather in June.
In comparing the weather between July and September, both months exhibit similar temperature ranges, with minimums around 24°C (75°F) and averages hovering at 28°C (82°F). However, September experiences slightly higher maximum temperatures, peaking at 35°C (95°F), while July's maximum reaches 34°C (94°F). Precipitation is quite comparable as well, with July receiving 297 mm (11.7 in) over 29 days and September recording 295 mm (11.6 in) over 27 days, making both months quite rainy and humid, with humidity levels remaining steady at 89%. For a detailed look at July's weather in this region, you can check the following link: Cu Chi weather in July.
In comparing the weather of September to that of August, both months exhibit similar temperature ranges, with September experiencing a minimum of 24°C (75°F), an average of 28°C (82°F), and a maximum of 35°C (95°F), while August’s figures are slightly cooler with a maximum of 34°C (94°F). However, September has a higher total precipitation of 295 mm (11.6 in) over 27 days, compared to August's 309 mm (12.2 in) over 29 days, indicating a slightly drier month. Humidity remains high in both months, with September at 89% and August at 90%. For further details on August weather conditions, visit Cu Chi weather in August.
In September, the weather tends to be slightly warmer and more humid, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 35°C (95°F), and an average of 28°C (82°F). The month experiences considerable rainfall, with a total precipitation of 295 mm (11.6 in) over 27 days. In contrast, October sees a slight decrease in temperature, with minimums of 23°C (74°F) and maximums of 34°C (94°F), averaging 27°C (82°F). Precipitation also declines to 269 mm (10.6 in) across 26 days, accompanied by a slight drop in humidity to 87%. For more specific weather details in October, you can check out Cu Chi weather in October.
In September, temperatures in Cu Chi range from a minimum of 24°C (75°F) to a maximum of 35°C (95°F), with an average of 28°C (82°F). This month is characterized by high humidity at 89% and significant rainfall, receiving 295 mm (11.6 in) over 27 days. In contrast, November experiences slightly cooler temperatures, with a minimum of 22°C (71°F) and a maximum of 34°C (94°F), averaging 27°C (82°F). Rainfall decreases considerably to 163 mm (6.4 in), occurring over just 17 days, and humidity slightly drops to 87%. The transition from September to November marks a reduction in both temperature extremes and precipitation, making November a more pleasant month overall. For a more detailed look at what to expect in November, check out Cu Chi weather in November.
In comparison to September, December features slightly cooler temperatures, with an average of 27°C (81°F) compared to September's warm average of 28°C (82°F). The maximum temperatures in December reach 34°C (93°F), only marginally lower than September’s peak of 35°C (95°F). However, December brings a significant reduction in precipitation, with only 52 mm (2.1 in) falling over 8 days, compared to September's heavy rainfall of 295 mm (11.6 in) spread over 27 days. Humidity also decreases slightly, averaging 80% in December versus 89% in September. For more details, check out Cu Chi weather in December.
As September rolls into Cu Chi, the weather showcases a striking blend of heat and humidity that sets it apart from the other months of the year. With temperatures reaching highs of up to 35°C and an average humidity level of 89%, visitors will feel the tropical embrace in full swing. Frequent rain showers contribute to the month's significant precipitation, resulting in a lush and vibrant landscape, yet, it’s essential to be prepared for the nearly daily rainfall that characterizes this period. As the region transitions from the dry season to the wet, make the most of your visit by embracing the unique weather patterns that Cu Chi offers in September. For more insights into the climate, check out Cu Chi Climate.