Last updated: January 18, 2025
Ubon Ratchathani, Thailand, predominantly experiences a tropical wet and dry climate, classified as Köppen-Geiger type Aw. The region exhibits a notable temperature range throughout the year, with a minimum of 11°C (52°F) in January, rising to an average of 27°C (81°F). The peak temperature in May can soar to a scorching 40°C (104°F), highlighting the significant warmth during the dry season. This climatic profile underscores the diverse thermal conditions that characterize Ubon Ratchathani, influencing both local ecosystems and human activities.
The temperature patterns in Ubon Ratchathani, Thailand, reveal distinct seasonal trends, characterized by a marked increase during the dry months. January brings cooler temperatures with a minimum of 11°C (52°F), gradually rising to 12°C (55°F) in February. As the region transitions into March and April, the mercury climbs significantly, peaking at a maximum of 40°C (104°F) in both April and May. The arrival of the rainy season in June introduces slightly cooler minimums around 23°C (73°F), yet averages remain steady at 29°C (84°F). Throughout the wet months of July and August, daytime highs begin to moderate slightly, ranging from 35°C to 37°C (95°F to 99°F). By the time of transition back to the dry season in October and November, nighttime temperatures dip to 19°C (66°F), indicating a cooling trend as Ubon Ratchathani shifts from high summer to mild winter.
Si Mueang Mai and Ubon Ratchathani share similar temperature ranges, with both locations experiencing a minimum of 12°C (53°F) in January and soaring to a maximum of 40°C (104°F) in May. For more detailed monthly temperatures, you can check Si Mueang Mai's climate data here and Ubon Ratchathani's information here.
Precipitation in Ubon Ratchathani, Thailand, exhibits a clear seasonal pattern, with most rainfall concentrated during the monsoon season from May to September. January and February are notably dry, receiving only 4 mm (0.2 in) and 7 mm (0.3 in), respectively, with minimal rain days. However, as March approaches, precipitation begins to rise, peaking in April at 74 mm (2.9 in) as the region transitions into the wet season. The month of May marks a significant increase, with rainfall escalating to 169 mm (6.7 in), indicating the onset of continuous downpours.
The monsoon reaches its zenith in July and September, with rainfall exceeding 300 mm (11.8 in) during both months. July records the highest number of rain days, reaching 26 days, while September follows closely with 25 days of rain, contributing to the total annual precipitation. As the rainy season tapers off in October, the precipitation decreases sharply to 188 mm (7.4 in), and November sees a further decline to 47 mm (1.9 in). By December, Ubon Ratchathani returns to a drier climate, receiving only 8 mm (0.3 in) of rain, which underscores the marked contrast in precipitation throughout the year.
In Ubon Ratchathani, Thailand, sunshine duration follows a distinct seasonal pattern, showcasing a gradual increase in sunlight as the year progresses. The beginning of the year, particularly January, records 261 hours of sunshine, which then rises steadily to 297 hours in February and further to 324 hours in March. This upward trend peaks during April, with 314 hours of sunshine, as the region approaches the hot season. The abundance of sunshine in early year not only provides ample light for daily activities but also signifies the transition into the vibrant summer months ahead.
As the wet season takes hold in May and June, sunshine hours remain relatively high, with 318 hours and 298 hours, respectively. However, a noticeable decline occurs during the following months, with July and August marked by reduced sunlight, averaging 272 hours and 261 hours. The trend gradually recovers as October sees 280 hours and November increases to 296 hours, leading into the more favorable conditions of December with 313 hours. Overall, this climatic pattern indicates that Ubon Ratchathani experiences its most abundant sunshine during the early months of the year and maintains significant daylight throughout the dry season, while slightly diminished sunlight is typical during the peak of the rainy season.
In Ubon Ratchathani, Thailand, the UV Index exhibits significant variation throughout the year, reflecting the intensity of sun exposure across different seasons. Starting from January, the UV Index is measured at 10, categorized as very high, necessitating a burn time of just 15 minutes for unprotected skin. As February arrives, the index escalates to 13, entering the extreme category, which continues to rise, peaking at 15 in both April and May. These months demand extra caution, with a notably short burn time of just 10 minutes, emphasizing the intensity of UV radiation during the hottest period of the year.
As the rainy season approaches, the UV Index remains high, sustaining values of 13 to 15 from June through August, indicating continued extreme levels of UV exposure. Although slightly reduced, September and October still report 14 and 13, respectively. A transition into November sees a minor decline to 11, before returning to 10 by December, which is marked again as very high. Throughout the year, it is crucial for residents and visitors in Ubon Ratchathani to adopt protective measures against UV radiation, particularly during the peak months when the potential for skin damage is significantly heightened.
UV Risk Categories
In Ubon Ratchathani, Thailand, daylight duration exhibits a relatively consistent pattern throughout the year, with minor variations that reflect the seasonal changes. January and February each offer 11 hours of daylight, providing a solid foundation for the dry season. As March arrives, the daylight hours increase to 12, a trend that continues through April, May, and into the early summer months of June and July—where daylight remains steady at 12 hours. This stability in sunlight supports the agricultural needs of the region and encourages outdoor activities during these months.
As the year progresses towards the end of summer, daylight duration begins to taper off again. In August and September, the daylight continues at 12 hours, sustaining the benefits of the wet season. However, by October, it returns to 11 hours, marking a gradual transition into the cooler months of November and December, which also consist of 11 hours of daylight. This overall consistency in daylight duration throughout Ubon Ratchathani creates a predictable rhythm that influences both daily life and ecological patterns in the region.
Si Mueang Mai, Thailand experiences a tropical climate characterized by warm temperatures and distinct wet and dry seasons. From January to March, temperatures range from a low of 12°C (53°F) to a maximum of 39°C (102°F), with relatively low precipitation. The rainy season peaks in July and August, bringing heavy rainfall, with July averaging 324 mm (12.8 in) of rain, making it the wettest month. Despite the rain, sunshine hours remain substantial, with March receiving the most at 324 hours. For more details, visit Si Mueang Mai climate.
Ubon Ratchathani, Thailand, experiences a tropical climate with distinct seasonal variations. Temperatures range from a mild 12°C (53°F) in January to a scorching 40°C (104°F) in May, with average temperatures hovering around 28°C (82°F) throughout the year. The wet season peaks from May to September, bringing significant rainfall, particularly in July and September, which receive over 260 mm (10.2 in) of precipitation. In contrast, January and December are drier months, with minimal rainfall. For more detailed information, check out the Ubon Ratchathani climate.
In conclusion, Ubon Ratchathani, Thailand, showcases a unique climatic profile characterized by distinct seasonal variations in temperature, precipitation, sunshine duration, UV index, and daylight hours. The region experiences a tropical wet and dry climate, with warm temperatures peaking during the dry season while rainfall significantly intensifies during the monsoon months. The abundance of sunshine and high UV index levels during much of the year highlight the need for sun protection, particularly in the hottest months. Overall, the interplay of these climatic factors not only shapes the daily lives of its residents but also supports the rich agricultural practices that thrive in this vibrant and diverse environment.