Last updated: August 28, 2025
In Dien Bien Dong, Vietnam, September brings a warm embrace characterized by a maximum temperature of 32°C (91°F) and a comfortable average of 24°C (76°F), while the minimum dips to 16°C (61°F) during cooler evenings. This month sees substantial rainfall, with total precipitation reaching 217 mm (8.6 in) across about 21 days, resulting in an invigorating humid atmosphere with an average humidity level of 82%. Visitors can expect a lush landscape transformed by the frequent showers, making it a captivating time for nature enthusiasts and adventurers alike.
In September, Dien Bien Dong, Vietnam, begins to transition into autumn, bringing a delightful shift in temperatures. With a minimum of 16°C (61°F) and an average height of 24°C (76°F), the weather is pleasantly mild, making it ideal for outdoor activities. The maximum temperature peaks at around 32°C (91°F), reminiscent of summer's warmth but not as intense as the preceding months. This combination of cooler nights and comfortable daytime warmth is a refreshing change from the sweltering summer heat. As the region prepares for the upcoming months, visitors can enjoy the vibrant scenery under favorable weather conditions.
In Dien Bien Dong, Vietnam, September marks a significant drop in precipitation compared to the preceding months, yet it still experiences considerable rainfall. With 217 mm (8.6 in) falling over 21 days, the region is well within its wet season, though not as drenched as during the peak months of July and August. This decrease in precipitation mirrors a gradual transition toward the drier weeks of October and November. Notably, the extended rainy season is characterized by a steady increase through to August, making September a pivotal time where the lush landscapes begin to shift, preparing for the upcoming dry spell. As the rain subsides, locals and visitors alike can expect an environment rich in vibrant greenery, adding to the region's scenic beauty.
September in Dien Bien Dong, Vietnam, brings a notable shift as humidity levels remain high at 82%, a slight decrease from the sweltering August's peak of 92%. The summer months of July and August showcase the region's most intense humidity, with readings soaring above 90%. As the transition into fall begins, September presents a more bearable, yet still humid atmosphere, following the trend of rising humidity from the earlier months. The lowest levels occur in the spring, with April dipping to just 50%, illustrating a clear seasonal pattern. Overall, September’s humidity remains significant, continuing to reflect the region’s tropical climate, which tends to retain moisture well into the autumn.
As September arrives in Dien Bien Dong, Vietnam, the UV Index remains consistently high at 14, categorized as extreme, which matches the intensity seen throughout the summer months. This trend underscores a significant pattern in the region, where the UV Index has predominantly fluctuated between 13 and 15 from March through September, warranting caution for outdoor enthusiasts. The burn time of just 10 minutes serves as a stark reminder of the region's intense sun exposure. As autumn approaches in October, there is a slight decrease to 12, but this month still demands vigilance due to the lingering high UV levels. For ongoing updates and more information on UV exposure, explore the Dien Bien Dong UV Index.
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As summer transitions to autumn in Dien Bien Dong, Vietnam, September shines brightly with an impressive 283 hours of sunshine. This month stands out following the peak of May, which boasts the highest sunshine at 320 hours. Interestingly, September's sunshine is a slight dip from the summer months but still represents a favorable share of bright days. The gradual decrease from May to August is followed by a resurgence in September, hinting at a nourishing balance of sun as the region enjoys cooler temperatures. With October following closely behind at 285 hours, this trend showcases the area’s enviable climate, rich with sunlight, perfectly setting the stage for activities and exploration amidst the stunning natural landscapes.
In Dien Bien Dong, Vietnam, the likelihood of sunny weather shows intriguing seasonal patterns. As the year unfolds, the sun shines most brightly in the early months, with January starting strong at 51%, peaking in March at a robust 64%. However, as the sweltering summer sets in with June, July, and August, the chances of sunshine dramatically decline, plummeting to single digits. As September rolls in, the probability of a sunny day hovers at 26%, signaling a mild improvement yet still reflecting the residual effects of the rainy season. October offers a slight uplift with 27%, hinting at a transition towards clearer skies as the year moves towards its end. Overall, while September does not rank among the sunniest months, it marks a season where the weather begins to shift, inviting the occasional glimpse of sunshine amidst lingering clouds.
In Dien Bien Dong, Vietnam, the month of September offers a harmonious balance of daylight, with an average of 12 hours gracing the skies. Following the summer months that bask in 13 hours of sunshine, September marks a gentle transition towards autumn. As daylight gradually dwindles in the subsequent months of October and November, this month serves as a reminder of the lingering warmth before a seasonal shift. The trend showcases a captivating ebb and flow of light throughout the year, with September standing as a peak of equilibrium, where the longer days of summer give way to the cooler, shorter days that follow.
As September unfolds in Dien Bien Dong, Vietnam, a subtle shift in the wind becomes evident. With an average wind speed of just 1.1 m/s (2 mph), September marks the season's gentle lull, contrasting the more robust breezes of earlier months. The cooling effects of autumn begin to settle in, reflected in the declining wind speeds since the summer peak, where July and August both registered at 1.3 m/s (3 mph). This trend highlights a transition into the quiet embrace of fall, as leaves rustle softly and the tranquil atmosphere invites moments of reflection. While the winds of September may be gentler, they carry with them the serene charm of the changing season, creating a perfect backdrop for those savoring the rich landscapes of this stunning region.
Weather in Dien Bien Dong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dien Bien Dong, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns, with September characterized by warmer temperatures and higher humidity. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), while average temperatures sit at around 24°C (76°F). This month also brings considerable rainfall, averaging 217 mm (8.6 in) over 21 days, resulting in a high humidity level of 82%. In stark contrast, January experiences cooler temperatures, with a minimum of 5°C (40°F) and a maximum of 29°C (85°F), while the average temperature is a mild 16°C (61°F). Precipitation drops significantly to 42 mm (1.7 in) over just 5 days, accompanied by lower humidity of 63%. For a closer look at January weather specifics, check out Dien Bien Dong weather in January.
September and February exhibit stark contrasts in weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 24°C (76°F). It is also a period marked by high humidity at 82% and significant rainfall, totaling 217 mm (8.6 in) over 21 days. In contrast, February presents a cooler climate, with temperatures dipping to a minimum of 6°C (44°F) and averaging 17°C (63°F), while still reaching a maximum similar to September at 32°C (90°F). February sees much lower rainfall, with only 27 mm (1.1 in) over just 3 days, and a drop in humidity to 65%. For more detailed information on February weather, check out Dien Bien Dong weather in February.
In comparing the weather patterns of September and March, September tends to be warmer and more humid, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F) and a notable average humidity of 82%. The month experiences significant rainfall, with precipitation reaching 217 mm (8.6 in) over 21 days. In contrast, March offers more moderate temperatures, with a minimum of 11°C (53°F) and a maximum of 34°C (94°F), while averaging around 21°C (70°F). The precipitation is notably lower at 50 mm (2.0 in) over just 10 days, and humidity is reduced to 57%. For a closer look at March weather in the region, you can visit Dien Bien Dong weather in March.
When comparing the weather in September and April, notable differences emerge. September presents a warmer climate with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), coupled with high humidity at 82%. In contrast, April offers a more varied temperature profile, with minimums of 9°C (48°F) and maximums reaching up to 36°C (96°F), while enjoying lower humidity at 50%. Precipitation levels in September are significantly higher, totaling 217 mm (8.6 in) over 21 days, compared to April’s 135 mm (5.3 in) over just 13 days. For more detailed insights on April weather, you can check Dien Bien Dong weather in April.
When comparing the weather in September and May, several noteworthy differences emerge. September typically boasts a mild temperature range, with minimums around 16°C (61°F) and maximums reaching 32°C (91°F), resulting in an average of 24°C (76°F). However, this month also experiences significant rainfall, with about 217 mm (8.6 inches) spread across 21 days and high humidity levels at 82%. In contrast, May tends to be slightly warmer, with temperatures varying from a minimum of 14°C (58°F) to a maximum of 38°C (101°F), averaging 25°C (77°F). Precipitation in May is lower at 118 mm (4.6 inches) over 18 days, accompanied by a more comfortable humidity level of 68%. For a closer look at the weather specifics in May, you can visit Dien Bien Dong weather in May.
When comparing the weather in September and June, September tends to be slightly cooler, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), compared to June's minimum of 20°C (69°F) and maximum of 35°C (95°F). Both months experience significant rainfall, with September receiving 217 mm (8.6 in) over 21 days, while June sees slightly more precipitation at 246 mm (9.7 in) over 26 days. Humidity levels are also high in both months, with September at 82% and June at 79%, making the air feel quite moist during this period. For a more detailed look at the weather conditions, check out Dien Bien Dong weather in June.
When comparing the weather in September and July, it's clear that July is warmer on average, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 35°C (95°F), while September features slightly cooler temperatures, with a range of 16°C (61°F) to 32°C (91°F). Additionally, July experiences higher humidity levels at 91% compared to September's 82%. Precipitation is also more pronounced in July, with 323 mm (12.7 in) falling over 28 days, in contrast to September's 217 mm (8.6 in) spread across 21 days. For more detailed information, you can visit Dien Bien Dong weather in July.
In September, the weather features a minimum temperature of 16°C and an average temperature that remains steady at 24°C, peaking at a warm 32°C. Although the humidity is slightly lower at 82%, the month still sees significant rainfall with 217 mm over 21 days. In contrast, August starts off warmer with a minimum temperature of 20°C, maintains the same average of 24°C, and reaches a maximum of 32°C. However, it experiences much heavier rainfall totaling 373 mm across 29 days, accompanied by a higher humidity level of 92%. For more details about the weather in August, visit Dien Bien Dong weather in August.
September and October present a notable transition in weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 24°C (76°F). The month sees significant rainfall, totaling 217 mm (8.6 in) over 21 days, accompanied by high humidity at 82%. In contrast, October brings slightly cooler temperatures, with a minimum of 13°C (55°F), an average of 22°C (72°F), and a maximum of 31°C (88°F). Precipitation also decreases to 126 mm (4.9 in) over 16 days, and humidity drops to 76%. For a more detailed look at the weather in October, visit Dien Bien Dong weather in October.
September and November present contrasting weather patterns. In September, temperatures exhibit a wider range, with averages around 24°C (76°F) and highs reaching 32°C (91°F), contributing to a humid atmosphere with an average humidity of 82%. Additionally, this month sees significant precipitation, with 217 mm (8.6 in) over about 21 days. In contrast, November features cooler temperatures, with a minimum of 11°C (51°F) and an average of 19°C (67°F), while still allowing for highs of 31°C (87°F). The month is much drier, experiencing only 25 mm (1.0 in) of rain across just 5 days, and the humidity drops to a more comfortable 72%. For more detailed information on local conditions, check Dien Bien Dong weather in November.
September and December present strikingly different weather conditions. In September, temperatures are much warmer, ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 24°C (76°F). The month is quite humid, with an 82% humidity level, and it experiences significant rainfall, accumulating 217 mm (8.6 inches) over 21 days. In contrast, December offers a cooler climate, with temperatures dropping to a minimum of 3°C (37°F) and peaking at 29°C (84°F), averaging around 16°C (61°F). Rainfall is minimal during this month, totaling only 24 mm (0.9 inches) across just 3 days, and humidity levels decrease to 68%. For more detailed information, you can check out Dien Bien Dong weather in December.
As September unfolds in Dien Bien Dong, the weather brings a distinct blend of warmth and humidity that sets it apart from the preceding months. With average temperatures hovering around 24°C (76°F), the region experiences a noticeable elevation in humidity, reaching 82%. This increase contributes to a muggy atmosphere, especially as the area faces frequent rain, accumulating 217 mm over 21 days. While maximum daytime temperatures can still reach a cozy 32°C (91°F), the pervasive moisture and precipitation create a lush landscape, marking the end of summer and heralding the transitional phases of the fall season. For a deeper understanding of the shifts in weather patterns, visit Dien Bien Dong Climate.