Last updated: August 27, 2025
In Udon Thani, Thailand, May brings a blend of intense heat and considerable humidity, with maximum temperatures soaring to 41°C (105°F) and an average around 30°C (85°F). Nights offer slight relief, dipping to a minimum of 22°C (72°F). The month is also marked by substantial rainfall, accumulating to 183 mm (7.2 in) over 18 days, contributing to a relative humidity level of 65% that can amplify the sultry conditions. As nature bursts into bloom, residents and visitors alike experience the rich tapestry of the region’s tropical climate during this vibrant month.
In May, Udon Thani experiences a noticeable transition into the warmest months of the year. With minimum temperatures starting at a comfortable 22°C (72°F), the city feels increasingly tropical as days progress. The average temperature hovers around 30°C (85°F), providing a balmy atmosphere that invites outdoor adventures. However, the real heat is felt as maximum temperatures peak at 41°C (105°F), making it one of the hottest months. This pattern of rising temperatures reflects a consistent trend from April, where the range began to elevate significantly. As the first hints of the rainy season approach in June, May serves as a perfect prelude to the sultry summer days, setting the stage for vibrant local festivals amidst the growing warmth.
May marks a significant turning point in Udon Thani's precipitation patterns, as the region experiences a dramatic increase in rainfall. With 183 mm (7.2 in) of rain falling over 18 days, May not only stands out as one of the wettest months but also sets the stage for the monsoon season. This contrasts sharply with the relatively dry preceding months, where rainfall gradually increased from 4 mm in January to 69 mm in April. The surge in May heralds the arrival of the heavier rains characteristic of June and July, which see even more substantial totals of 206 mm and 289 mm, respectively. This trend illustrates the transition into a climate where moisture plays a defining role, reshaping the landscape and impacting daily life in Udon Thani as the region braces for the peak of the rainy season ahead.
In Udon Thani, Thailand, May marks a notable shift in humidity levels, with the figure jumping to 65%, a significant increase compared to the dry month of April, which sits at a mere 40%. This transition signals the onset of the wet season, as the humidity continues to rise sharply into June, reaching 82% and peaking in the subsequent months of July and August, where it soars to an impressive 90% and 92%, respectively. As the year progresses, there's a clear trend of increasing moisture in the air, showing that May serves as a key indicator of the wetter months to come, transitioning from the dryer spells of early spring into the tropical conditions that characterize Udon Thani's summer.
In May, Udon Thani experiences a staggeringly high UV Index of 14, categorized as extreme, with a burn time of just 10 minutes. This marks the peak of the region's UV exposure, continuing the trend established from April, indicating that May is part of a series of months characterized by intense sunlight and increased sun safety precautions. Following closely, April also had a UV index of 14, while the months before showed a gradual rise from a very high UV index of 9 in January to the current extreme levels. With the UV Index in Udon Thani consistently remaining extreme through "June" and upwards, it’s crucial for residents and visitors to stay vigilant and protect their skin. For more detailed information on sun exposure safety, you can check the Udon Thani UV Index.
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In Udon Thani, Thailand, May shines brightly with 314 hours of sunshine, making it a delightful time to soak up the warmth. As the hot season transitions toward the rainy months, May maintains a relatively high level of sunshine, closely mirroring the 314 hours of April and slightly less than the peak of 321 hours in March. This pattern highlights a gradual shift as the year progresses, with the sunniest months typically clustered between January and March, followed by a gentle decline. However, in contrast to the upcoming rainy season, May still offers plenty of opportunities for outdoor adventures under the golden rays, before the clouds start to gather in June and beyond.
In Udon Thani, Thailand, the likelihood of sunny weather in May shows a notable dip compared to the preceding months, with only a 40% chance of sunshine. This decline follows a significant drop from April's 30% and a sharp contrast to the sun-drenched earlier months, where January and February boast chances of 83% and 87% respectively. As the region transitions toward the rainy season, the sunny days become increasingly rare, giving way to the more overcast and humid conditions of June through August, which linger around 14% to 16% sunshine probability. Therefore, while May still offers some sunny moments, it's wise to prepare for the shifting weather patterns as summer approaches.
In Udon Thani, Thailand, May marks the transition into a period of consistent daylight, with 12 hours of sunlight gracing the skies. As the year progresses from January to April, daylight gradually increases, reaching the peak of 13 hours in June and July. This trend showcases the region's shift from the cooler months towards the warmer summer season, where sunlight bathe the landscapes longer. Following this peak, daylight hours begin to decrease again, settling back to 12 hours in August and gradually tapering off to 11 hours by November. This rhythm of daylight not only highlights the equatorial climate of Udon Thani but also sets the stage for vibrant, sun-filled days that define the region's inviting charm during late spring and summer.
In Udon Thani, Thailand, May marks a subtle transition in wind activity, with an average wind speed of 1.6 m/s (3 mph). While this is a slight uptick from the calm of April, it's part of a larger trend where wind speeds generally begin to rise as the year progresses. After a gentle period from January to April, where winds hovered around 1.5 to 2.3 m/s, the breezes pick up again in June, reaching consistent speeds of 2.2 m/s (5 mph). This seasonal shift hints at the impending rainy season, as winds often swirl with greater vigor following the heat of the Thai summer. Overall, May's winds embody a brief respite before the summer gusts fully arrive, creating a perfect backdrop for outdoor activities and exploration in the region.
Weather in Udon Thani varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Udon Thani, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present strikingly contrasting weather conditions. In January, temperatures enjoy a mild range, with a minimum of 10°C (50°F) and an average of 24°C (75°F), making it comfortable for outdoor activities. In stark contrast, May heats up dramatically, showcasing a minimum temperature of 22°C (72°F) and an average soaring to 30°C (85°F), peaking at a scorching 41°C (105°F). Additionally, May is characterized by significant rainfall, with 183 mm (7.2 in) recorded across 18 days, while January remains mostly dry with only 4 mm (0.1 in) from just one day of precipitation. Humidity levels also vary, sitting slightly higher in May at 65% compared to January's 59%. For those interested in detailed information, you can check out Udon Thani weather in January.
May weather is characterized by much warmer temperatures, with minimums around 22°C (72°F) and maximums peaking at 41°C (105°F), compared to February's more moderate range of 13°C (55°F) to 37°C (100°F). Additionally, May experiences significantly higher precipitation, totaling 183 mm (7.2 in) over 18 days, whereas February sees only 12 mm (0.5 in) over just 1 day. The humidity in May is also higher, at 65%, compared to February's 54%. For a detailed look at February weather in Udon Thani, you can visit Udon Thani weather in February.
In comparing the weather of May and March, it's evident that May experiences significantly higher temperatures, with an average of 30°C (85°F) compared to March's average of 28°C (83°F). However, while May can reach maximum temperatures of 41°C (105°F), March's peak is only slightly lower at 40°C (104°F).
Precipitation levels also vary greatly, with May seeing 183 mm (7.2 in) of rain over 18 days, making it a much wetter month than March, which only receives 34 mm (1.3 in) over just 6 days. Additionally, May has a higher humidity level at 65%, while March maintains a drier atmosphere with 45% humidity. For more detailed insights, you can explore Udon Thani weather in March.
May weather is notably hotter and more humid compared to April. While both months experience high maximum temperatures reaching up to 41°C (105°F), May's average temperature is slightly higher at 30°C (85°F) compared to April's average of 29°C (85°F). Additionally, May is much wetter, with 183 mm (7.2 in) of precipitation spread across 18 days, in stark contrast to April's 69 mm (2.7 in) over just 9 days. The humidity also increases significantly in May, averaging 65%, compared to April's 40%. For more detailed information, check out Udon Thani weather in April.
May and June present distinct weather patterns, characterized by slight variations in temperature and precipitation. In May, temperatures range from a minimum of 22°C (72°F) to a maximum of 41°C (105°F), with an average of 30°C (85°F). The month sees significant rainfall, totaling 183 mm (7.2 in) over 18 rainy days, all while maintaining a humidity level of 65%. By contrast, June experiences a warmer minimum temperature of 24°C (75°F) and a lower maximum of 38°C (100°F), with an average that remains the same at 29°C (85°F). Precipitation increases to 206 mm (8.1 in) and occurs on 22 days, resulting in a higher humidity of 82%. For more detailed insights, check out the Udon Thani weather in June.
In comparing the weather between May and July, we see notable differences in temperature and precipitation. May typically experiences a temperature range from a minimum of 22°C (72°F) to a maximum of 41°C (105°F), with an average of 30°C (85°F). In contrast, July has slightly higher minimum temperatures at 24°C (76°F) but a cooler average of 29°C (84°F) and a maximum of 37°C (99°F).
Rainfall is significantly more abundant in July, with 289 mm (11.4 in) of precipitation occurring over 26 days compared to May's 183 mm (7.2 in) across 18 days. The humidity also rises dramatically in July, reaching 90% compared to May's 65%. For a closer look at July's weather specifics, check out Udon Thani weather in July.
May and August present distinct weather patterns. In May, temperatures range from a minimum of 22°C (72°F) to a maximum of 41°C (105°F), with an average of 30°C (85°F). The month sees significant rainfall, totaling 183 mm (7.2 in) over 18 days, accompanied by a moderate humidity level of 65%. In contrast, August features slightly higher minimum temperatures starting at 24°C (75°F) and cooler maximums peaking at 37°C (99°F), with an average temperature of 28°C (84°F). This month is characterized by heavier precipitation of 319 mm (12.6 in) over 25 days and a notably higher humidity level of 92%. For more insights on the weather during this month, check out Udon Thani weather in August.
In May, the weather tends to be hotter, with average temperatures reaching up to 30°C (85°F) and maximums soaring to 41°C (105°F). In contrast, September experiences slightly cooler average temperatures around 28°C (83°F) and maximums peaking at 36°C (97°F). While May has a total precipitation of 183 mm over 18 days, September sees increased rainfall, with 219 mm spread across 24 days, resulting in higher humidity at 86% compared to May's 65%. For more detailed insights on September weather, you can check Udon Thani weather in September.
May and October present contrasting weather patterns, with May typically being hotter and more humid. In May, temperatures range from a minimum of 22°C (72°F) to a scorching maximum of 41°C (105°F), while October sees milder temperatures where the minimum is 19°C (66°F) and the maximum reaches 36°C (97°F). Additionally, May experiences significantly higher precipitation at 183 mm (7.2 in) over 18 days, compared to October's 114 mm (4.5 in) over 15 days. The humidity in October is also notably higher at 80%, compared to May's 65%. For more insights into October's climate, you can refer to Udon Thani weather in October.
In May, the weather is significantly warmer, with average temperatures soaring up to 30°C (85°F) and maximums reaching as high as 41°C (105°F). This month also sees considerable rainfall, with about 183 mm (7.2 in) spread over 18 days, coupled with a humidity level of 65%. In contrast, November offers a much cooler climate, featuring an average temperature of 26°C (79°F) and maximums peaking at 36°C (97°F). Rainfall is minimal during this month, with only 11 mm (0.4 in) over 2 days, and a slightly higher humidity level of 72%. For a detailed look at the weather conditions in November, visit Udon Thani weather in November.
May and December present stark contrasts in weather. In May, temperatures can soar with a minimum of 22°C (72°F) and an average high reaching up to 41°C (105°F), accompanied by significant precipitation of 183 mm (7.2 in) over 18 days, resulting in a humid environment with levels around 65%. In contrast, December boasts a much cooler climate, with minimum temperatures dropping to 9°C (49°F) and an average of 23°C (74°F), while rainfall is minimal at just 6 mm (0.2 in) over a single day. The humidity remains similar at 66%, but the overall feel of December is considerably drier and more comfortable than the sweltering heat of May. For more details, check out Udon Thani weather in December.
As May unfolds in Udon Thani, the weather shifts dramatically, marking a transition into the warmer and more humid months of the year. With soaring temperatures peaking at a sizzling 41°C (105°F), it’s crucial to stay hydrated and seek shade during the hottest hours. Unlike the cooler, dry spells of earlier months, May sees an uptick in humidity and precipitation, with rain refreshing the landscape on about 18 days throughout the month. This increase in moisture often brings a lush vibrancy to the surroundings, but it also means being prepared for sudden downpours. For a deeper dive into Udon Thani’s climate throughout the year, explore Udon Thani Climate.