Last updated: August 27, 2025
September in Ubon Ratchathani, Thailand showcases warm weather characterized by a maximum temperature reaching 35°C (95°F) and a comfortable average of 28°C (82°F). As the month progresses, temperatures dip to a pleasant minimum of 24°C (75°F), making it an inviting time for visitors. However, it's also the rainy season, with an impressive 300 mm (11.8 in) of precipitation over 24 days, leading to high humidity levels of 89%. This combination of warmth and moisture creates a lush and vibrant backdrop for the region, enhancing the local culture and natural beauty.
In September, Ubon Ratchathani experiences a warm and humid subtropical climate, with temperatures showcasing a slight shift as the wet season progresses. The minimum temperature hovers around 24°C (75°F), offering a mild start to the day, while the average temperature sits at a comfortable 28°C (82°F). As the day unfolds, highs reach up to 35°C (95°F), maintaining the region's characteristic warmth. Notably, September marks a continuation of the trend seen in the preceding months, where temperatures remain consistent but slightly cooler compared to the peak summer months of April and May. This blend of warmth and increasing humidity serves as a reminder of Ubon Ratchathani's tropical allure, inviting both locals and visitors to enjoy its lush landscapes before the cooler months arrive.
September marks a notable peak in precipitation for Ubon Ratchathani, Thailand, with rainfall soaring to 300 mm (11.8 in), making it the wettest month of the year. This substantial downpour typically occurs over 24 days, illustrating a dramatic rise in wet weather as the monsoon season reaches its zenith. Following a gradual increase from early months, where rainfall starts at just 4 mm in January, the patterns reveal an escalating trend, particularly from May onwards, which sets the stage for September's significant wetness. Such high levels of precipitation contribute to the region’s lush landscapes but also signal the challenges that accompany the monsoon, as the city navigates the balance between nature's beauty and the potential for flooding.
In September, Ubon Ratchathani, Thailand, experiences a stifling humidity level of 89%, maintaining the region's trend of heightened moisture as it transitions from the wet season. Starting with a significantly lower 41% in March, the humidity steadily climbs throughout the year, peaking during the monsoon months of July and August, where it reaches an impressive 87% and 90%, respectively. As September rolls in, residents feel the lingering effects of the heavy rains, with only a slight decrease in humidity before it begins to ease in October. This seasonal progression highlights the dramatic shift from the drier months of early year to the oppressive humidity of late summer, characteristic of Ubon Ratchathani's tropical climate.
As September rolls in Ubon Ratchathani, the UV Index remains high at 14, placing it in the extreme exposure category with a burn time of just 10 minutes. This month continues a trend established earlier in the year, where the UV Index often peaked, especially from March to May, reaching a staggering 15. Although September shares its index with both July and August, the risk of sunburn remains significant, necessitating proper sun protection measures. The transition into October shows a slight decline to 12, but vigilance against UV exposure is advisable for all who bask in the Thai sun. For more information, visit Ubon Ratchathani UV Index.
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September in Ubon Ratchathani, Thailand, welcomes a delightful average of 267 hours of sunshine, contributing to the region's overall warm and vibrant atmosphere. As the monsoon season begins to subside, the sun's rays gradually re-emerge, showcasing a small dip from the summer months but still remaining plentiful compared to the preceding rainy season. This month serves as a gentle transition, where the hours of sunshine begin to prepare the ground for the more pronounced warmth of October, with an increase to 281 hours. Overall, September's radiant days reflect a consistent trend of sunlight that enriches the local culture and invites exploration, making it an ideal time to enjoy the natural beauty of this enchanting part of Thailand.
September in Ubon Ratchathani, Thailand presents a noteworthy shift in sunniest days, with only a 13% chance of sunny weather. This marks a significant dip compared to earlier months, particularly from February's high of 83%. As the region transitions from the wet season, the likelihood of sunshine continues to decline, reaching its lowest point during the monsoon months of July and August, where the chances plummet to just 16% and 11%, respectively. Such trends indicate that while September might offer a glimmer of sun, visitors should prepare for the possibility of lingering rain and cloudy skies as they explore this vibrant region. The sun's return starts to become more promising in October, climbing back to 16%, hinting that brighter days are just around the corner.
In Ubon Ratchathani, Thailand, September marks a continuation of the stable daylight pattern established throughout the year. With 12 hours of daylight, the month maintains the same length as August and the preceding spring and summer months, reflecting a comforting consistency in the region's climate. Following the longer days of June, which peak at 13 hours, daylight gradually tapers off to 11 hours by October. This delicate balance of daylight lends itself to a vibrant atmosphere, ideal for enjoying the lush surroundings as the rainy season transitions into more temperate conditions. As daylight hours shift ever so slightly, Ubon Ratchathani embraces the seasonal changes while offering a rich experience no matter the time.
In Ubon Ratchathani, Thailand, the wind in September tends to be relatively gentle, averaging 1.8 m/s (4 mph), consistent with the calm breezes of the preceding months. After experiencing slightly higher speeds during the summer, the transition into the fall brings a noticeable drop in wind activity. This month’s wind is among the lowest of the year, echoing April and May but showing a subtle increase in strength compared to the wind patterns in February and March. As Ubon Ratchathani moves towards the end of the year, the winds begin to pick up again, hinting at the dynamic shifts that await in October and beyond.
Weather in Ubon Ratchathani varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ubon Ratchathani, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by high temperatures, with a minimum of 24°C (75°F) and an average of 28°C (82°F), reaching a maximum of 35°C (95°F). This month also experiences significant rainfall, totaling 300 mm (11.8 in) over 24 days and high humidity levels at 89%, making the atmosphere feel quite sultry. In contrast, January offers a more temperate climate, featuring a minimum temperature of 12°C (53°F) and an average of 25°C (77°F), while still peaking at 35°C (96°F). January is notably drier, with only 4 mm (0.2 in) of precipitation over just 1 day and lower humidity at 56%. For more detailed information, visit Ubon Ratchathani weather in January.
September and February present stark contrasts in weather conditions. September features a warm climate with an average temperature of 28°C (82°F), peaking at 35°C (95°F) while experiencing significant rainfall—300 mm (11.8 in) over 24 days—coupled with high humidity at 89%. In contrast, February offers a cooler experience, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 37°C (98°F) and a much drier atmosphere, receiving only 8 mm (0.3 in) of precipitation over just 2 days and maintaining a humidity level of 50%. This notable difference highlights February as a more comfortable time to enjoy outdoor activities compared to the rainy, humid days of September. For more specifics, check out Ubon Ratchathani weather in February.
In comparing the weather of September and March, a stark contrast emerges. September experiences higher humidity at 89% and significantly more rainfall, with an average precipitation of 300 mm over 24 days, making it a wet month. Temperatures hover between a minimum of 24°C (75°F) and a maximum of 35°C (95°F). In contrast, March showcases a drier climate with only 32 mm of precipitation over 6 days and a considerably lower humidity level of 41%. Despite the minimum temperature being cooler at 17°C (63°F), March can reach higher maximums of 39°C (102°F), contributing to an overall warmer feel during the day. For more detailed information, you can check Ubon Ratchathani weather in March.
In September, the weather is characterized by high humidity levels at 89%, with temperatures ranging from a mild 24°C (75°F) to a hot 35°C (95°F) on average, and substantial rainfall totaling 300 mm (11.8 in) across 24 days. In contrast, April features a wider temperature range, with minimums of 17°C (63°F) and maximums soaring up to 39°C (103°F), though the weather is much drier, with only 75 mm (2.9 in) of precipitation over 12 days and a significantly lower humidity of 44%. For more details about April weather specifics, visit Ubon Ratchathani weather in April.
September and May in Ubon Ratchathani present distinct 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). This month is characterized by high humidity at 89% and significant rainfall, with 300 mm (11.8 in) spread across 24 days. In contrast, May sees slightly warmer temperatures, with a minimum of 20°C (68°F), an average of 29°C (85°F), and a peak of up to 40°C (104°F). Despite the warmth, May experiences less precipitation at 175 mm (6.9 in) over 21 days and lower humidity at 71%. For a detailed look at May weather specifics, visit Ubon Ratchathani weather in May.
In September, the weather in Ubon Ratchathani experiences slightly lower temperatures compared to June, with average highs reaching 35°C (95°F), whereas in June, the maximum temperature peaks at 37°C (98°F). Despite similar minimum temperatures around 24°C (75°F-76°F), September is characterized by increased precipitation, totaling 300 mm (11.8 in) over 24 days, compared to June’s 174 mm (6.8 in) over 22 days. This contributes to a higher humidity level in September at 89%, compared to June's 83%. For a more detailed look at the June weather patterns in Ubon Ratchathani, visit Ubon Ratchathani weather in June.
In comparing the weather of September and July, both months exhibit warm temperatures, with minimums around 24°C (75°F) and average highs of 28°C (82°F) and 28°C (83°F) respectively. However, July edges out slightly with a maximum temperature reaching up to 36°C (97°F), while September peaks at 35°C (95°F). Precipitation levels in September are notably higher, with 300 mm (11.8 in) falling over 24 days, compared to July's 266 mm (10.5 in) over 27 days. The humidity remains relatively high in both months, with September at 89% and July at 87%. For a more detailed look at July's weather patterns, you can check Ubon Ratchathani weather in July.
In comparing the weather between September and August, both months exhibit similar temperature ranges, with September showing a slight increase in minimum temperatures at 24°C (75°F) compared to August's 23°C (74°F). The average temperature remains consistent at 28°C (82°F) for both months, while the maximum temperature peaks at 35°C (95°F) in either period. However, September experiences more rainfall, totaling 300 mm (11.8 in) over 24 days, compared to August’s 272 mm (10.7 in) over 27 days. Additionally, humidity levels are slightly lower in September at 89%, compared to August’s 90%. For more detailed insights into August's weather, you can check Ubon Ratchathani weather in August.
In September, the weather in Ubon Ratchathani is characterized by warmer temperatures, with average highs reaching up to 35°C (95°F) and a high humidity level of 89%. This month also sees significant rainfall, accumulating around 300 mm (11.8 in) over 24 days. In contrast, October brings slightly cooler temperatures, with an average high of 34°C (94°F) and a minimum of 21°C (69°F). The precipitation decreases notably to 179 mm (7.1 in) across 18 days, along with a dip in humidity to 83%. For a more detailed look at what to expect, check out Ubon Ratchathani weather in October.
In September, the weather is notably warmer and more humid, with average temperatures around 28°C (82°F) and humidity levels soaring to 89%. This month also sees significant rainfall, with around 300 mm (11.8 in) falling across 24 days, making it quite a wet period. In contrast, November brings a more pleasant climate, featuring cooler temperatures with an average of 26°C (79°F) and a drop in humidity to 74%. The precipitation is significantly lower, amounting to just 45 mm (1.8 in) over 5 days, which allows for a drier and more comfortable atmosphere. For more detailed insights regarding November weather, you can check Ubon Ratchathani weather in November.
September and December present contrasting weather conditions. 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). The month is marked by high humidity at 89% and significant rainfall, accumulating 300 mm (11.8 in) over 24 days. In stark contrast, December features cooler temperatures, with a minimum of 14°C (57°F) and a maximum of 34°C (93°F), averaging at 24°C (76°F). The precipitation drastically decreases to just 7 mm (0.3 in) over only 2 days, and humidity drops to 68%. For more detailed insights, you can check Ubon Ratchathani weather in December.
As September unfolds in Ubon Ratchathani, the weather stands out from other months, marked by high humidity levels that often hover around 89%, creating a distinctly muggy atmosphere. With average temperatures settling around 28°C (82°F), the month is a comfortable reprieve from the sweltering highs of summer, though temperatures can peak at a steamy 35°C (95°F). Rainfall is a key feature, with about 300 mm (11.8 in) drenching the area over approximately 24 days, transforming the landscape into a lush, green oasis. This wet season ensures that September is characterized by its balmy temperatures and frequent showers, providing a unique climate experience that stands in contrast to the sunnier and drier periods of the year. For more details, explore the full insights on Ubon Ratchathani Climate.