May Weather in Nong Khai, Thailand

Last updated: August 27, 2025

In Nong Khai, Thailand, the weather in May is marked by a hot and humid climate, featuring maximum temperatures soaring to 41°C (106°F) and an average of 29°C (85°F). Despite the sweltering heat, the region experiences significant precipitation, totaling 199 mm (7.8 in) over 21 days, creating a lush environment. With humidity levels averaging around 65%, May in Nong Khai is characterized by its tropical essence, inviting both challenges and beauty for residents and travelers alike.

May Temperature in Nong Khai

May in Nong Khai, Thailand, brings a vibrant warmth as temperatures reach their peak for the early part of the year. With minimums hovering around 22°C (72°F) and averages settling at a comfortable 29°C (85°F), the weather becomes increasingly inviting. The maximum temperatures can soar to 41°C (106°F), mirroring the highs of April, but with a more humid feel as the region transitions into the wet season. This month not only shares the intense warmth of its predecessor but also sets the stage for the sultry days of June. As the climate grows more balmy, locals and visitors alike can enjoy the lush landscapes emerging from the onset of monsoon rains, making May a unique blend of heat and budding vitality.

May Weather in Nong Khai: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Nong Khai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nong Khai, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec747682848584848383827973
Data source: Temperature data for Nong Khai generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Nong Khai

May marks a significant transition in Nong Khai, Thailand, as precipitation surges to an impressive 199 mm (7.8 in) over the month, a stark increase from previous months. This rainy season begins to take hold, bringing frequent showers on 21 days throughout the month, setting the stage for the heavier downpours that are characteristic of the following months. The pattern of escalating rainfall is evident as May's totals are almost three times that of April, underscoring the region's gradual shift into its wet season. Such substantial precipitation not only replenishes the local ecosystem but also indicates the start of a vibrant, lush phase in Nong Khai’s climate, paving the way for June's even more torrential rains.

May Precipitation Trends in Nong Khai

The chart displays monthly precipitation patterns in Nong Khai, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Nong Khai, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec512366819931035141026012486
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Nong Khai

In Nong Khai, Thailand, the humidity levels showcase a distinct upward trend as the year progresses. Starting from a relatively comfortable 59% in January, the humidity dips slightly in February and March, reaching its annual low of 40% in April. However, May sees a substantial rise, with humidity climbing to 65%, marking the beginning of a more humid season. As the months advance into the summer, humidity soars dramatically, peaking at a sweltering 92% in August. This pattern highlights the region's transition from dry to wet, with June through September consistently exhibiting high humidity levels that can be quite intense, before gradually declining in the latter part of the year.

May Average Humidity in Nong Khai

This chart illustrates the average monthly humidity levels in Nong Khai, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Nong Khai is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%54%45%40%65%82%90%92%86%80%72%67%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Nong Khai

In Nong Khai, Thailand, the UV Index in May reaches an extreme level of 14, indicating a significantly high risk of harm from unprotected sun exposure and a quick burn time of just 10 minutes. This trend of heightened UV radiation continues from April, where the index is also 14, highlighting a peak in UV intensity as the dry season progresses. From February to April, the UV Index gradually climbs from 11 to 14, maintaining severe exposure categories throughout. Following May, the UV levels remain extreme in the coming months, reinforcing the importance of sun protection during this period. As the weather warms, it's crucial to stay informed about solar radiation levels. For detailed information, visit Nong Khai UV Index.

Maximum UV Index Levels in Nong Khai for May

The chart shows the monthly maximum UV Index (UVI) for Nong Khai in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Nong Khai typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131414131414141298
Data source: Nong Khai May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Nong Khai

In Nong Khai, Thailand, the May sunshine brings a delightful blend of warmth and light, with the region basking in approximately 309 hours of glorious sunshine. This modest dip from the high of 318 hours in March reflects the onset of the rainy season, yet it still positions May as a luminous month, ensuring plenty of opportunities for outdoor adventures. As summer approaches, sunshine begins to gradually decline, from May’s bright days to 274 hours in June, indicating a transition to cloudier conditions. Nonetheless, the vibrant smiles and lively festivities of this season make May a captivating time to experience the beauty of Nong Khai under the sun.

Monthly Sunshine Duration in Nong Khai: May Highlighted

The May sunshine duration represents the total number of hours Nong Khai experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec254h293h318h311h309h274h269h250h276h300h305h311h
Data source: Nong Khai May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nong Khai During May

In Nong Khai, Thailand, the likelihood of experiencing sunny weather takes a significant dip in May, with only 39% chance of sun. This decline follows the dry season peak months of January and February, which boast impressive odds of 83% and 87%, respectively. March still holds a decent 69%, but by April, the chances drop dramatically to 31%. The trend continues through the summer months, plunging to a mere 14% by June and remaining low through July and August. As the year progresses, the likelihood of sunny days fluctuates, with a notable increase in late-year months like November (66%) and December (87%). Overall, May serves as a transitional month, hinting at the onset of the rainy season with diminishing sunshine compared to its predecessor months.

Percentage of Sunny Days in May in Nong Khai

The chart illustrates the percentage of sunny days in Nong Khai throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Nong Khai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec83%87%69%31%39%14%16%14%19%31%66%87%
Data source: Nong Khai May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nong Khai in May

In Nong Khai, Thailand, the daylight duration experiences a subtle ebb and flow throughout the year, showcasing a harmonious rhythm that aligns with the changing seasons. From January to April, daylight remains steady at 11 to 12 hours, creating a consistent environment perfect for outdoor activities. As May arrives, daylight persists at 12 hours, marking the transition into the longer summer days. This trend continues into June and July, where daylight extends to a generous 13 hours, providing ample time for exploration and enjoyment of the region’s natural splendor. As the year progresses into the gentle embrace of autumn, daylight gradually recedes to 12 hours in August and then back to 11 hours from October to December, wrapping up the year with a comforting sense of closure. Overall, the rhythmic evolution of daylight in Nong Khai reflects the beauty of nature's cycles, inviting both locals and visitors to savor each moment.

Average Daylight Hours in Nong Khai for May

The chart illustrates the variation in daylight duration in Nong Khai throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 10m11h 32m12h 2m12h 32m12h 57m13h 10m13h 3m12h 41m12h 12m11h 42m11h 16m11h 4m
Data source: Nong Khai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Nong Khai

In May, Nong Khai experiences a gentle breeze with an average wind speed of 1.4 m/s (3 mph), marking a noticeable dip from the previous months. This trend of lower wind speeds continues the pattern established in April, which saw the slowest winds of the year so far. As summer approaches, the winds gradually pick up again, with a minor increase in June, suggesting a soft transition into the season. The overall wind patterns reflect a distinct seasonal rhythm, where the calmness of May offers a serene backdrop to the warming days, inviting relaxation and a slower pace of life amidst the evolving landscapes of Thailand.

Average May Wind Speed in Nong Khai

The chart displays monthly wind speed patterns in Nong Khai, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.11.91.91.51.4 m/s1.82.01.81.61.61.92.0
Data source: Nong Khai May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Nong Khai Compares to Other Months

Weather in Nong Khai varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Nong Khai, focusing on differences in temperature, rainfall, humidity, and UV levels.

May and January present stark contrasts in weather patterns. May is characterized by much warmer temperatures, with minimums around 22°C (72°F) and maximums soaring up to 41°C (106°F), while the average temperature hovers at 29°C (85°F). In contrast, January offers milder conditions, featuring a minimum of 10°C (50°F) and a maximum of 35°C (95°F), with an average temperature of 23°C (74°F).

Furthermore, May experiences significantly higher precipitation, totaling 199 mm (7.8 in) over 21 days, while January enjoys a much drier climate with only 4 mm (0.2 in) of rain across just 1 day. The humidity levels are also notably different, with May maintaining around 65% compared to January’s 59%. For a more detailed look into January’s weather, you can visit Nong Khai weather in January.

May and February present contrasting weather profiles. In May, temperatures soar with a minimum of 22°C (72°F), an average of 29°C (85°F), and highs reaching up to 41°C (106°F). This month also experiences significant rainfall, with 199 mm (7.8 in) over 21 days, contributing to a humidity level of 65%. In contrast, February boasts milder temperatures, with a minimum of 13°C (56°F), an average of 24°C (76°F), and a maximum of 37°C (99°F). The precipitation is minimal in February, totaling only 12 mm (0.5 in) across just one day, and the humidity is lower at 54%. For more detailed insights on February weather, you can check Nong Khai weather in February.

In comparing the weather between March and May, May is notably warmer and more humid. The minimum temperature in May starts at 22°C (72°F) and can soar up to a scorching 41°C (106°F), while March sees lower temperatures ranging from a minimum of 17°C (62°F) to a maximum of 39°C (103°F). Additionally, May experiences significantly more rainfall, with 199 mm (7.8 in) over approximately 21 days, compared to March's 36 mm (1.4 in) spread across just 6 days. The humidity also rises in May to an average of 65%, compared to the more comfortable 45% in March. For those specifically interested in the weather patterns during March, additional details can be found at Nong Khai weather in March.

In comparing the weather of May and April, both months exhibit similar average and maximum temperatures, with a consistent average of 29°C (85°F) and peak temperatures reaching up to 41°C (106°F). However, May significantly surpasses April in terms of precipitation, receiving 199 mm (7.8 in) across 21 days compared to April's 68 mm (2.7 in) over just 9 days. Additionally, May's humidity is higher at 65%, while April enjoys a lower humidity level of 40%. This indicates that May is not only wetter but also more humid than April. For a detailed look at April's weather, you can visit Nong Khai weather in April.

In May, the temperatures range from a minimum of 22°C (72°F) to a maximum of 41°C (106°F) with an average temperature of 29°C (85°F). The month sees significant rainfall, with 199 mm (7.8 in) of precipitation over 21 days and a humidity level of 65%. In contrast, June experiences slightly higher minimum temperatures at 24°C (75°F) and a similar average of 29°C (85°F), but the maximum temperature is a bit cooler at 39°C (102°F). Rainfall increases substantially in June, reaching 310 mm (12.2 in) over 25 days, accompanied by higher humidity at 82%. For more detailed insights, you can check out Nong Khai weather in June.

In May, the weather is characterized by a warm average temperature of 29°C (85°F) and can peak at a sweltering 41°C (106°F), with a significant amount of rainfall totaling 199 mm (7.8 in) across 21 days. The humidity level sits at a comfortable 65%. In contrast, July sees a slightly higher minimum temperature of 24°C (76°F) while maintaining a similar average of 29°C (84°F). However, it experiences a more moderate maximum of 36°C (98°F) and substantially increased rainfall, reaching 351 mm (13.8 in) over 26 days, with humidity levels rising to 90%. For more detailed insights, check out Nong Khai weather in July.

When comparing the weather in May and August, it’s clear that both months feature warm temperatures, but with notable differences. In May, temperatures range from a minimum of 22°C (72°F) to a maximum of 41°C (106°F), averaging at 29°C (85°F). This month experiences relatively lower humidity at 65% and a total precipitation of 199 mm (7.8 in) over 21 days. In contrast, August sees slightly cooler temperatures with a minimum of 24°C (76°F) and a maximum of 37°C (98°F), averaging around 28°C (83°F). However, it also has significantly higher humidity at 92% and double the precipitation amount, totaling 410 mm (16.1 in) over 26 days. For further details on August weather patterns, you can check Nong Khai weather in August.

May and September exhibit distinct weather patterns despite having similar minimum temperatures at around 22°C (72°F). May typically enjoys hotter days, with average highs reaching 29°C (85°F) and maximums peaking at 41°C (106°F), whereas September's average high is milder at 28°C (83°F) with a maximum of 36°C (98°F). Precipitation also varies significantly; May sees about 199 mm (7.8 in) of rain over 21 days, while September experiences a wetter climate with 260 mm (10.2 in) spread across 24 days. Additionally, September tends to have higher humidity levels at 86%, compared to May's 65%. For more detailed information, you can visit Nong Khai weather in September.

In May, temperatures can reach a scorching maximum of 41°C (106°F) with an average of 29°C (85°F) and a minimum of 22°C (72°F), making it one of the hottest months. Precipitation is significant during this time, totaling 199 mm (7.8 in) over 21 rainy days, while humidity averages 65%. In contrast, October offers slightly cooler temperatures, with highs of 36°C (97°F) and an average of 28°C (82°F), alongside a minimum of 20°C (68°F). Rainfall decreases to 124 mm (4.9 in) over 16 days, and the humidity rises to 80%, contributing to a more humid environment. For more details about October weather conditions, visit Nong Khai weather in October.

In comparing the weather between May and November, May tends to be significantly hotter and more humid. With temperatures ranging from a minimum of 22°C (72°F) to a scorching maximum of 41°C (106°F), May also experiences higher precipitation levels, averaging 199 mm (7.8 in) over 21 days. In contrast, November offers a milder climate, featuring lower temperatures that range from a minimum of 17°C (62°F) to a maximum of 36°C (97°F). The overall precipitation in November drops dramatically to just 8 mm (0.3 in) over 3 days, along with a slightly higher humidity of 72%. For a detailed look at November's weather, you can visit Nong Khai weather in November.

May and December present contrasting weather patterns. In May, temperatures soar with a minimum of 22°C (72°F) and an average high of 29°C (85°F), occasionally peaking at a sizzling 41°C (106°F). The month is also characterized by significant rainfall, accumulating 199 mm (7.8 in) over 21 days, while maintaining a humidity level of 65%. In stark contrast, December offers much cooler weather with a minimum temperature of 9°C (48°F) and a pleasant average of 23°C (73°F), reaching a maximum of 35°C (94°F). Notably, December experiences significantly less precipitation, with just 6 mm (0.2 in) over a mere 2 days and a slightly higher humidity of 66%. For more details, you can visit Nong Khai weather in December.

Compare Nong Khai's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Nong Khai

May in Nong Khai brings a distinct shift in weather patterns, marked by rising temperatures and increased rainfall compared to earlier months. With average highs soaring around 29°C, the heat becomes palpable, often reaching impressive maxima of 41°C. This month also witnesses a significant uptick in precipitation, with rain making an appearance on 21 days, contributing to the 65% humidity that pervades the air. These conditions not only highlight May as a transitional period towards the monsoon but also underscore its vibrant, lush landscapes. For a deeper understanding of the weather trends throughout the year, explore our detailed section on Nong Khai Climate.