Last updated: August 21, 2025
September in Vangviang, Laos is characterized by a warm and humid climate, with maximum temperatures reaching 34°C (94°F) and an average of 25°C (77°F). The month sees an abundance of rainfall, with 265 mm (10.4 in) spread over 28 days, resulting in a lush, verdant landscape. The high humidity level of 85% adds to the tropical feel, making September a time of vivid scenery and a dynamic atmosphere in this picturesque town. As the rain nourishes the surroundings, visitors can expect stunning views and a vibrant, thriving environment.
In September, Vangviang, Laos, experiences a delightful transition in temperature, with a minimum of 19°C (66°F) and a pleasant average of 25°C (77°F). This month features a maximum of 34°C (94°F), making it one of the warmer times of the year. As the rainy season approaches, temperatures remain relatively stable compared to the previous months, hinting at a gentle shift from the late summer heat. Interestingly, September's weather becomes more comfortable than the peak months of April and May, which see higher maximums. With these temperatures, September invites visitors to enjoy the lush landscapes and vibrant atmosphere of Vangviang while maintaining a comfortable climate for exploration.
September marks a notable transition in Vangviang, Laos, as the region experiences a significant precipitation amount of 265 mm (10.4 in), continuing the trend of heavy rainfall that peaks in the preceding months. This month sees an average of 28 rainy days, reflecting a sustained wet season that begins in May and culminates in the torrential downpours of July and August. While September's rainfall is a reduction from the summer's highs, it still contributes to the overall moisture that nourishes the lush landscapes of the region. As the monsoon begins to wane, the rainfall patterns shift, setting the stage for drier months ahead, highlighting the cyclical nature of Vangviang's climate.
In Vangviang, Laos, September marks a notable shift in humidity levels, showcasing a blend of the monsoon season's lingering effects. With humidity peaking at 85%, the region experiences a significant decrease from the soaring 92% in August. This gradual decline indicates the slow transition toward drier months, as the air remains heavy with moisture following the intense rainy season. Comparatively, the year begins with lower humidity levels, starting at 57% in January and reaching a minimum of 39% in April. Ultimately, while September still presents a high humidity environment, it signals a gradual easing as the landscape prepares for the more temperate conditions of October ahead.
In September, Vangviang, Laos experiences a UV Index of 14, falling within the extreme exposure category, where a mere 10 minutes of unprotected sun exposure can lead to skin damage. This month continues the trend established from the summer, where UV levels peaked at 15 during July and August. The consistent ultra-high UV readings from June through September highlight the need for sun safety precautions such as wearing protective clothing, applying sunscreen, and seeking shade. As the year progresses, particularly moving into October, we see a slight dip in UV levels, yet it remains crucial to stay vigilant. For more detailed information, check the Vangviang UV Index.
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In Vangviang, Laos, September ushers in a delightful blend of sunshine with 277 hours of bright, inviting rays, setting a perfect backdrop for both exploration and relaxation. As summer fades, the hours of sunshine showcase a nuanced trend; while June and July experience a dip in sunlight, September marks a resurgence as daylight begins to stabilize, showcasing a slight increase from August's lower total. This upward shift not only hints at the onset of a more settled autumn climate but also invites adventurers and wanderers to embrace the natural beauty and vibrant atmosphere of Vangviang in this picturesque month. The overall pattern of hours suggests a Mediterranean-like rhythm, where the joys of outdoor activities can be savored before winter’s approach, cementing September as an important transitional period in the region's climatic tapestry.
In Vangviang, Laos, the likelihood of enjoying sunny weather in September is relatively low, with only a 16% chance of sun. This decline in sunshine is part of a clear trend throughout the monsoon season, which spans from June to August, where the chances are at their lowest, often dipping below 15%. As September rolls in, the region remains under the influence of remaining monsoon conditions, contributing to the persistent cloud cover and rainfall. Fortunately, the weather begins to improve in the following months, leading to a notable uptick in sunshine, especially as October approaches. So, if you're planning a getaway in Vangviang during this time, be prepared for some overcast days and the possibility of rain.
As September arrives in Vangviang, Laos, the daylight duration maintains a steady pace, offering 12 hours of light each day. This month follows a gradual transition from the longer days of summer, which peak at 13 hours in May through July, before tapering back to 12 hours in August and then reducing slightly in October. The consistent daylight during September reflects a natural rhythm in the region’s climate, providing ample opportunity for both exploration and relaxation amidst its stunning landscapes. As we approach the end of the year, a gentle cadence takes over, with daylight hours retreating to 11 hours through the cooler months, inviting longer nights and tranquil evenings.
In September, the gentle breezes of Vangviang, Laos see a slight dip in average wind speed, dropping to 0.9 m/s (2 mph). This marks the end of a trend observed over the months, where wind speeds have consistently hovered around 1.0 to 1.2 m/s since the beginning of the year. As the region transitions into autumn, the shifting dynamics can be felt, with winds becoming less pronounced than in the preceding months. This calming atmosphere, however, encourages a moment of reflection amidst the stunning natural beauty of Vangviang, where the serene surroundings invite visitors to savor the peacefulness that accompanies the gentle September winds.
Weather in Vangviang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Vangviang, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns. In September, temperatures range from a minimum of 19°C (66°F) to a maximum of 34°C (94°F), with an average of 25°C (77°F). This month is also characterized by heavy rainfall, totaling 265 mm (10.4 in) over 28 days, and high humidity at 85%. In stark contrast, January boasts milder temperatures with a minimum of 7°C (45°F) and a maximum of 31°C (88°F), averaging around 20°C (68°F). The precipitation is significantly lower at just 21 mm (0.8 in) over four days, and humidity drops to a more comfortable 57%. For more details on the January weather, you can check Vangviang weather in January.
In September, the weather is significantly warmer and more humid than in February, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 34°C (94°F) and an average of 25°C (77°F). The month experiences substantial rainfall, totaling 265 mm (10.4 inches) over 28 days, leading to a high humidity level of 85%. In contrast, February sees milder temperatures, with lows of 10°C (50°F) and highs reaching 33°C (92°F), maintaining an average of 21°C (70°F). Precipitation is minimal during this month, with only 30 mm (1.2 inches) falling over just 2 days, accompanied by a lower humidity of 53%. For more details, you can check Vangviang weather in February.
In September, the weather is typically warmer and more humid, with temperatures ranging from a minimum of 19°C (66°F) to a scorching maximum of 34°C (94°F), along with an average temperature of 25°C (77°F). The month sees significant rainfall, totaling 265 mm (10.4 in) over 28 days, contributing to a high humidity level of 85%. In contrast, March offers more moderate conditions, featuring a minimum temperature of 14°C (57°F), an average of 23°C (74°F), and a maximum that can reach up to 35°C (94°F). Rainfall is considerably less in March, with only 35 mm (1.4 in) over 8 days, and humidity drops to a more comfortable 45%. For those interested in the specifics of Vangviang's climate, you can find more information here: Vangviang weather in March.
In comparing the weather conditions of September and April, it's evident that both months exhibit similar average temperatures, standing at 25°C (77°F). However, September tends to be more humid with 85% humidity, while April's humidity drops significantly to 39%. September experiences a much higher amount of rainfall, accumulating around 265 mm (10.4 inches) over 28 days, which is in stark contrast to April’s lower precipitation of 84 mm (3.3 inches) over just 13 days. Furthermore, April can reach a maximum temperature of 37°C (98°F), well above September’s peak of 34°C (94°F). For more detailed insights, you can check Vangviang weather in April.
In September, temperatures typically range from a minimum of 19°C (66°F) to a maximum of 34°C (94°F), with an average of 25°C (77°F). This month is characterized by high humidity at 85% and significant rainfall, totaling 265 mm (10.4 in) over 28 days. In contrast, May offers slightly warmer conditions, with an average temperature of 26°C (78°F) and a maximum of 36°C (97°F), although it experiences less rainfall—163 mm (6.4 in) over 24 days—and has a lower humidity level of 66%. This makes May a drier and warmer month compared to the wetter and cooler September. For more detailed insights on the weather in May, check out Vangviang weather in May.
In comparing the weather of September and June, both months exhibit similar average temperatures, hovering around 25°C (77°F), with maximum temperatures reaching up to 34°C (94°F). However, September features slightly lower minimum temperatures at 19°C (66°F) compared to June’s 21°C (70°F). Notably, September experiences significantly less precipitation, with 265 mm (10.4 in) compared to June's 383 mm (15.1 in), despite both months displaying rain on approximately 28 days. Additionally, September's humidity is higher at 85%, while June maintains a lower humidity level of 79%. For more detailed information, refer to Vangviang weather in June.
September and July present somewhat similar temperature ranges, with average temperatures hovering around 25°C (77°F) in both months. However, July tends to be slightly warmer with minimum temperatures of 21°C (70°F) compared to September’s 19°C (66°F). In contrast, September is characterized by a significantly lower level of rainfall, receiving 265 mm (10.4 in) over 28 days, while July sees much heavier precipitation at 519 mm (20.4 in) across 30 days. This results in a higher humidity level in July, at 90%, compared to September's 85%. For more detailed insights, check out Vangviang weather in July.
In comparing the weather between August and September, we see that September's temperatures are slightly cooler, with a minimum of 19°C (66°F) compared to August's minimum of 20°C (68°F). Both months share an average temperature of 25°C (77°F), but September has a marginally higher maximum temperature of 34°C (94°F) versus August's maximum of 33°C (92°F). However, September experiences significantly less rainfall, with only 265 mm (10.4 in) over 28 days, compared to August's 587 mm (23.1 in) across 30 days. Additionally, humidity levels are a bit lower in September at 85%, compared to 92% in August. For a more detailed look at August weather, you can refer to this link: Vangviang weather in August.
September and October present noticeable differences in weather patterns. September experiences warmer temperatures, with an average high of 34°C (94°F) and an average humidity of 85%, leading to a steamy atmosphere. In contrast, October sees a slight decrease in temperatures, averaging a max of 32°C (90°F) and a drop in humidity to 72%, creating a more comfortable climate. Additionally, October has less rain, with 149 mm (5.9 in) of precipitation over 21 days compared to September's 265 mm (10.4 in) spread across 28 days. For more details on the weather in October, check out Vangviang weather in October.
In comparing the weather between September and November, September experiences warmer temperatures, with a minimum of 19°C (66°F) and a maximum of 34°C (94°F), while November has a cooler low of 13°C (56°F) and a high of 33°C (91°F). Additionally, September is marked by significantly higher precipitation, totaling 265 mm (10.4 in) over 28 days, compared to November's much drier conditions with only 34 mm (1.3 in) across 9 days. Humidity also drops notably from 85% in September to 64% in November, contributing to a more comfortable climate. For more specific details, you can check the Vangviang weather in November.
The weather in September and December presents a striking contrast. In September, temperatures range from a minimum of 19°C (66°F) to a maximum of 34°C (94°F), with an average of 25°C (77°F). The month is marked by high humidity at 85% and considerable rainfall, totaling 265 mm (10.4 in) over 28 days. In contrast, December offers cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 31°C (87°F), averaging around 20°C (67°F). The humidity drops significantly to 60%, and precipitation is much lower at just 23 mm (0.9 in) over only 4 days. For more details, you can check Vangviang weather in December.
As September unfolds in Vangviang, the weather presents a distinct contrast to the drier months preceding it. Temperatures remain warm, with an average settling around 25°C (77°F), but the notable increase in humidity to about 85% makes the air feel heavier. This month also witnesses a significant uptick in precipitation, with rainfall occurring on nearly all days, culminating in a total that vastly exceeds the levels seen earlier in the year. This wet weather not only enhances the lush landscapes but also adds a refreshing vibrance to the region. For those intrigued by Vangviang's unique climate patterns throughout the year, more information can be found here: Vangviang Climate.