Last updated: August 27, 2025
In September, Don Mueang, Thailand, experiences a warm and humid climate, with maximum temperatures soaring up to 36°C (97°F) and an average temperature of 29°C (84°F). The city sees a considerable amount of rainfall, totaling 264 mm (10.4 in) over approximately 24 days, which contributes to the high humidity levels averaging around 87%. This weather pattern is characteristic of the wet season, making it essential for visitors and residents alike to prepare for both the heat and frequent showers.
In September, Don Mueang, Thailand, showcases a warm and inviting climate, with temperatures ranging from a mild 24°C (76°F) at night to a pleasant 36°C (97°F) during the day. The average temperature hovers around 29°C (84°F), maintaining the tropical warmth that characterizes the region. Notably, it marks the transition from the intense heat of summer as temperatures begin to drop slightly from the peak months of April and May. The consistent warmth throughout the month, combined with a slight decrease in maximum temperatures compared to July and August, makes September a comfortable time to explore this vibrant city, perfect for enjoying outdoor activities amidst the lush scenery and rich culture.
September marks a significant peak in precipitation for Don Mueang, Thailand, where the region receives an impressive 264 mm (10.4 in) of rainfall over 24 days. This month stands out distinctly in the annual pattern, following a series of progressively increasing rainfalls since April. The shift toward the latter half of the year showcases a clear trend, as September's torrential downpours contribute to an overall crescendo of rainfall, culminating the monsoon season. With the surrounding months, particularly July and August, also experiencing substantial showers, September solidifies its reputation as the wettest month, delivering not only a necessary replenishment of water resources but also embracing the lush, vibrant landscapes characteristic of this tropical climate.
In September, the humidity in Don Mueang, Thailand, remains notably high at 87%, marking a slight decrease from the peak levels recorded in August, which reached 88%. The trend throughout the year reveals a steady rise in humidity from the cooler months, with January starting at 59% and gradually climbing to its zenith during the monsoon season. This increase culminates in the summer months of May through July, which are characterized by oppressive humidity levels in the 80s and 90s. As September rolls in, humidity slightly tapers off, hinting at a transition toward the drier months ahead, yet still maintains a significant humidity that envelops the region. Following September, a gradual decline is observed as the year progresses into October and beyond, providing a reprieve that many in the area eagerly anticipate.
As September rolls into Don Mueang, Thailand, residents and visitors alike should be prepared for persistent intense sun exposure, as the UV Index remains consistently high at 13, classifying it in the extreme category. This marks a continuation of a long stretch of extreme UV conditions that began in February. Across the months, the burn time has been notably brief, holding steady at just 10 minutes, a stark reminder of the necessity for sun protection. With little reprieve until the cooler months, every outdoor activity should be approached with caution. For more detailed insights, check out the Don Mueang UV Index.
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September in Don Mueang, Thailand, reflects a gentle transition in the sun's embrace with 263 hours of sunlight, marking a notable dip from the vibrant summer months. This decrease continues a pattern from August's 270 hours, while still staying above the early summer peaks of March and April, which basked in well over 300 hours. As the year unfolds, the region tends to experience its sunniest days between February and March, with hours gradually tapering off as the rainy season approaches. The sunny streak remains resilient through late fall, hinting that even as September wraps up, the warmth of the sun will linger in the heart of this bustling locale.
In September, the likelihood of sunshine in Don Mueang, Thailand takes a significant dive, plummeting to just 10%. This trend marks the continuation of the rainy season, where the sun plays a rare cameo compared to the brighter winter months. Unlike the earlier part of the year, with February boasting a striking 76% chance of sunny days, September leaves much to be desired for sun-seekers. As the monsoon reigns, travelers should prepare for overcast skies and the enchanting scent of rain-soaked earth, rather than pursuing sun-kissed adventures.
In Don Mueang, Thailand, the daylight duration exhibits a fascinating rhythm throughout the year. As the calendar turns to September, the city enjoys a generous 12 hours of daylight, consistent with the previous four months. This trend reflects a stable pattern in the region, where daylight reaches its peak during the warmer months of March through September, fostering vibrant outdoor activities and cultural events. Following this period, daylight begins its gradual decline as October ushers in shorter days, settling back to 11 hours by November and remaining steady through December. The consistent 12-hour span in September not only marks a pleasant transition into the latter part of the year but also highlights the tropical charm that characterizes Thailand's climate.
In September, the winds in Don Mueang, Thailand, typically slow down, with an average speed of 1.9 m/s (4 mph), marking a notable dip from the gustier mid-year months. This decline in wind speed is part of a broader trend observed throughout the latter half of the year, where average speeds oscillate around the 4 mph mark from October to December. As the region transitions from the rain-soaked months of June and July, which boast the highest winds at 2.7 m/s and 2.5 m/s respectively, September signals the gentle ease into the cooler, calmer days of autumn. This seasonal shift not only brings a welcome respite from the heat but also sets the stage for a more tranquil atmospheric palette as the year winds down.
Weather in Don Mueang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Don Mueang, focusing on differences in temperature, rainfall, humidity, and UV levels.
September features considerably warmer temperatures, with a minimum of 24°C (76°F) and an average high of 36°C (97°F), while January offers cooler conditions, starting at a minimum of 16°C (61°F) and peaking at 35°C (96°F). Additionally, September experiences significant rainfall, receiving 264 mm (10.4 in) over 24 days, resulting in high humidity levels at 87%. In stark contrast, January enjoys much drier weather, with only 20 mm (0.8 in) of precipitation over just 3 days, leading to a more comfortable humidity level of 59%. For more specific information about January conditions in this region, visit Don Mueang weather in January.
In September, the weather is generally much more humid and rainy compared to February. With average temperatures around 29°C (84°F) and a high of 36°C (97°F), September sees a significant amount of rainfall, totaling 264 mm (10.4 in) over about 24 days, resulting in a humidity level of 87%. In contrast, February experiences a more stable and dry climate, with milder temperatures, where the average is 28°C (82°F) and highs can still reach 36°C (97°F). The precipitation in February is minimal, with only 12 mm (0.5 in) recorded over just 2 days, accompanied by a much lower humidity of 58%. For more details on the February climate, you can check Don Mueang weather in February.
September and March exhibit notable differences in weather patterns. September tends to be more humid and wet, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F) and an average of 29°C (84°F). This month experiences significant rainfall, accumulating 264 mm (10.4 in) over approximately 24 days. In contrast, March is slightly warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 38°C (101°F), averaging 30°C (86°F). Rainfall is minimal during this month, with only 49 mm (1.9 in) over just 6 days, resulting in a much lower humidity level of 61%. For more detailed information, you can check the weather specifics here: Don Mueang weather in March.
When comparing the weather in September and April, we see notable differences in temperature and precipitation patterns. September experiences a minimum temperature of 24°C (76°F) with an average of 29°C (84°F) and can reach up to 36°C (97°F). This month is marked by high humidity levels at 87% and significant rainfall, totaling 264 mm (10.4 in) over 24 days. In contrast, April features slightly cooler minimum temperatures at 20°C (69°F), an average temperature of 30°C (87°F), and peaks at a hotter 39°C (103°F). Additionally, April is much drier, with only 107 mm (4.2 in) of precipitation across 13 days and lower humidity at 70%. For more specific details on Don Mueang weather in April, you can explore further.
When comparing the weather in September and May, it's clear that both months experience high temperatures but with some notable differences. September has a minimum temperature of 24°C (76°F) and averages around 29°C (84°F), whereas May begins slightly warmer with a minimum of 23°C (74°F) and an average of 30°C (87°F). The maximum temperature in May can reach as high as 40°C (105°F), making it the hotter month overall compared to September's maximum of 36°C (97°F).
In terms of precipitation, September is significantly wetter with 264 mm (10.4 in) of rainfall spread over 24 days, while May sees less rain at 160 mm (6.3 in) over 21 days. Additionally, humidity is higher in September at 87%, compared to 80% in May, contributing to a more oppressive feel to the weather during that month. For those planning to visit during May, more details can be found at Don Mueang weather in May.
In comparing the weather of September and June, both months exhibit high temperatures and humidity typical of tropical climates. September experiences slightly cooler temperatures, with a minimum of 24°C (76°F) and an average of 29°C (84°F), while June is marginally warmer, starting at 25°C (77°F) and averaging 30°C (86°F). June also has a maximum temperature peak of 38°C (101°F), which is higher than September's maximum of 36°C (97°F). Despite this, September has significantly more precipitation, with 264 mm (10.4 in) over 24 days, compared to June’s 142 mm (5.6 in) over 22 days. Both months maintain high humidity levels, with September at 87% and June slightly lower at 85%. For more detailed weather conditions in June, you can refer to Don Mueang weather in June.
In comparing the weather of September and July, we see some notable differences. September tends to be slightly cooler with a minimum temperature of 24°C (76°F), compared to July's minimum of 25°C (77°F). Both months have similar average temperatures around 29°C (84°F in September and 85°F in July) and maximum temperatures that are close, with July reaching a peak of 37°C (99°F) and September hitting 36°C (97°F). However, September is significantly wetter, receiving 264 mm (10.4 in) of precipitation over 24 days, while July has less rainfall at 182 mm (7.2 in) over 27 days. Humidity levels are quite comparable, with September slightly higher at 87% compared to July’s 86%. For more detailed information, you can visit Don Mueang weather in July.
When comparing the weather in September and August, September shows slightly lower maximum temperatures, with an average high of 36°C (97°F), compared to August's peak of 37°C (100°F). The minimum temperatures are also marginally lower in September at 24°C (76°F) versus 25°C (77°F) in August. However, September experiences significantly higher precipitation, with 264 mm (10.4 in) over 24 days, compared to August's 190 mm (7.5 in) over 25 days. Humidity levels remain comparable, at 87% in September and 88% in August. For more detailed insights on August weather, you can visit Don Mueang weather in August.
In comparing the weather of September and October, we see a slight decrease in temperature and precipitation. September boasts a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), while October sees a minimum of 22°C (72°F) and an average of 28°C (83°F). Both months experience the same maximum temperature of 36°C (97°F), but October has slightly lower precipitation at 239 mm (9.4 in) over 20 days, compared to September's 264 mm (10.4 in) across 24 days. Humidity also drops from 87% in September to 83% in October. For more detailed information about October conditions, check out Don Mueang weather in October.
In September, the weather tends to be hotter and more humid, with average temperatures reaching around 29°C (84°F) and maximums soaring as high as 36°C (97°F). The month also experiences significant rainfall, with about 264 mm (10.4 in) of precipitation over 24 days, contributing to a high humidity level of 87%. In contrast, November offers a more comfortable climate, featuring slightly cooler temperatures, with averages around 28°C (83°F) and maximums of 35°C (96°F). Rainfall drops dramatically to 58 mm (2.3 in) over just 8 days, resulting in lower humidity at 78%. For more detailed information on weather conditions, visit Don Mueang weather in November.
In September, the weather is characterized by higher temperatures, with minimums around 24°C (76°F) and averages reaching up to 29°C (84°F), alongside frequent heavy rain, totaling 264 mm (10.4 in) over approximately 24 days. The humidity remains high at 87%, creating a warm and sticky atmosphere. In contrast, December offers a much milder climate, with minimum temperatures dropping to 15°C (59°F) and average temperatures around 27°C (80°F). Rainfall is significantly reduced to just 21 mm (0.8 in) over only 2 days, and the humidity falls to a more comfortable 70%. For those seeking detailed information on the weather in December, check out Don Mueang weather in December.
As September unfolds in Don Mueang, the weather reveals its distinctive character with a blend of high humidity and considerable rainfall, setting it apart from other months. While temperatures peak at a sweltering maximum, the frequent downpours and elevated humidity levels create a unique tropical atmosphere that can feel quite intense. September's combination of averaging warm, muggy days and a substantial number of rainy days contributes to a lush landscape, ideal for those who appreciate the vibrancy that the monsoon season brings. For a deeper understanding of the climate nuances throughout the year, visit Don Mueang Climate.