May Weather in Si Satchanalai, Thailand

Last updated: August 27, 2025

In May, Si Satchanalai, Thailand experiences a tropical climate characterized by high temperatures and notable humidity. The maximum temperature can soar to a scorching 42°C (108°F), while the average hovers around 31°C (88°F), providing a warm atmosphere throughout the month. Nighttime brings some relief, with temperatures cooling to a minimum of 24°C (75°F). Amidst this heat, the region sees considerable precipitation, accumulating 156 mm (6.1 in) over approximately 16 days, contributing to a humid environment that averages 71% humidity. Visitors should be prepared for both heat and rain as nature thrives in this vibrant setting.

May Temperature in Si Satchanalai

In May, Si Satchanalai, Thailand sees temperatures that firmly place it in the heart of the hot season. With a minimum of 24°C (75°F) and an average of 31°C (88°F), the warmth is palpable. The maximum temperature can soar up to 42°C (108°F), making it one of the hottest months of the year. Compared to the preceding months, May marks a significant uptick in heat, particularly when juxtaposed with April's maximum of 43°C (109°F). This steady rise in temperatures indicates the dry season's peak, inviting both locals and tourists to embrace the vibrant outdoor lifestyle while staying hydrated and sun-protected. As the month progresses, the warmth lingers, setting a sultry tone that characterizes the early summer in this historical Thai town.

May Weather in Si Satchanalai: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Si Satchanalai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Satchanalai, 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).
JanFebMarAprMayJunJulAugSepOctNovDec777986888785858383838176
Data source: Temperature data for Si Satchanalai generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Si Satchanalai

May marks a significant transition in Si Satchanalai, Thailand, as precipitation dramatically increases, reaching 156 mm (6.1 in) over 16 days. This surge in rainfall not only highlights May as one of the wettest months but also signals the onset of the monsoon season, paving the way for the subsequent months of June and July, which receive even higher amounts of rain. Compared to the preceding months, where rainfall was minimal and sporadic, May's weather shifts dramatically, setting a trend of increasing precipitation that peaks in August with a staggering 325 mm (12.8 in). This pattern underscores the vital role that the May rains play in replenishing local ecosystems and preparing the landscape for the forthcoming deluge, ultimately sustaining the region’s lush greenery throughout the rainy season.

May Precipitation Trends in Si Satchanalai

The chart displays monthly precipitation patterns in Si Satchanalai, 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 Si Satchanalai, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2398781561872023252281482417
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Si Satchanalai

In Si Satchanalai, Thailand, May marks a significant shift in humidity, soaring to a notable 71%. This increase not only breaks the more temperate early months of the year, where levels hovered around 45% to 51%, but also sets the stage for the wet season that follows. By June, the air becomes increasingly saturated, with humidity peaking at 84% and remaining consistently high through the summer months. This trend emphasizes May as a transitional period, where the warm, dry days of earlier months give way to the lush, tropical climate characteristic of the region later in the year. The humidity fluctuations reveal a rhythm of nature, inviting visitors to experience the vibrant, verdant landscapes that come alive after the rains.

May Average Humidity in Si Satchanalai

This chart illustrates the average monthly humidity levels in Si Satchanalai, 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 Si Satchanalai is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%48%45%49%71%84%84%87%84%71%62%55%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Si Satchanalai

In May, Si Satchanalai, Thailand, experiences an exceptionally high UV Index of 14, placing it in the extreme exposure category with a burn time of just 10 minutes. This intensity marks a peak trend that begins earlier in the year, as the UV Index escalates from 9 in January to 11 in February, maintaining an extreme level of 13 through March and April. The trend continues into June, where the UV Index holds steady at 13, and it remains high throughout the summer months of July, August, and September. The consistent exposure underscores the importance of sun protection during this period, as UV levels remain dangerously high in Si Satchanalai. For more detailed insights, visit Si Satchanalai UV Index.

Maximum UV Index Levels in Si Satchanalai for May

The chart shows the monthly maximum UV Index (UVI) for Si Satchanalai 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 Si Satchanalai typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131414141398
Data source: Si Satchanalai 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 Si Satchanalai

May brings a delightful blend of sunshine and warmth to Si Satchanalai, boasting 328 hours of glorious sunlight. This month stands as a vibrant continuation of the year's upward trend, following the peak of 333 hours in March and a slightly lower yet still generous 324 hours in April. The abundant sunshine in May is part of a seasonal pattern where the region enjoys longer days, contributing to an overall feeling of vitality and energy. As the temperatures rise, the radiant sunlight fosters a lush environment, making this picturesque town a perfect destination for outdoor adventures and cultural explorations. As the year progresses, the sunlight gradually declines into the summer months, but May surely holds a special place as it transitions into the vibrant heart of the Thai summer.

Monthly Sunshine Duration in Si Satchanalai: May Highlighted

The May sunshine duration represents the total number of hours Si Satchanalai 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.
JanFebMarAprMayJunJulAugSepOctNovDec251h296h333h324h328h283h265h247h272h281h302h312h
Data source: Si Satchanalai May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Si Satchanalai During May

In Si Satchanalai, Thailand, May marks a noticeable dip in the likelihood of sunny weather, with the chance of sunshine falling to 43%. This reduction follows the significantly brighter months of January through March, where sunshine probabilities hover between 72% to 88%. However, as April approaches, the clarity diminishes drastically to just 26%, ushering in the rainy season. This trend continues through June and July, where the likelihood further declines to a mere 15% and 12%, respectively. As one looks ahead to the year, the weather gradually improves again in the later months, peaking with a 59% chance of sun in November. Hence, while May offers a moderate opportunity for sunny days, travelers should brace for the possibility of rain.

Percentage of Sunny Days in May in Si Satchanalai

The chart illustrates the percentage of sunny days in Si Satchanalai 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 Si Satchanalai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec80%88%72%26%43%15%12%11%12%24%59%86%
Data source: Si Satchanalai May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Si Satchanalai in May

In Si Satchanalai, Thailand, the daylight duration showcases a captivating rhythm throughout the year. Starting in January and February with a consistent 11 hours of daylight, the days gradually lengthen as March and April usher in an increase to 12 hours, signaling the arrival of spring. This pattern maintains its momentum into May, where daylight remains at 12 hours, an ideal balance that invites outdoor exploration and cultural festivities. As the calendar turns to June and July, daylight peaks at 13 hours, providing ample time for sun-soaked adventures. However, the transition into late summer brings a gentle shift, with August and September reverting to 12 hours. Finally, as the year draws to a close in October, November, and December, daylight returns to its starting point of 11 hours, creating a cyclical dance of light that beautifully reflects the changing seasons in this enchanting region.

Average Daylight Hours in Si Satchanalai for May

The chart illustrates the variation in daylight duration in Si Satchanalai throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 11m11h 33m12h 2m12h 31m12h 56m13h 8m13h 2m12h 40m12h 12m11h 43m11h 18m11h 5m
Data source: Si Satchanalai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Si Satchanalai

In May, Si Satchanalai experiences a gentle breeze, with an average wind speed of 1.7 m/s (4 mph). This marks a slight increase from the calmer days of April, while remaining consistent with February and March's light winds. As the region transitions into the hotter summer months, the winds begin to pick up, setting the stage for June's breezier average of 2.2 m/s (5 mph). This trend of mild yet refreshing winds makes May an ideal time to explore the cultural gems of Si Satchanalai, as the soft gusts provide a pleasant backdrop to the historical landscape. Overall, the May winds contribute to a serene atmosphere that invites both locals and visitors to enjoy the sights and sounds of this charming Thai town.

Average May Wind Speed in Si Satchanalai

The chart displays monthly wind speed patterns in Si Satchanalai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.71.91.51.7 m/s2.21.91.71.21.11.11.4
Data source: Si Satchanalai May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Si Satchanalai Compares to Other Months

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

In May, temperatures soar significantly, with average highs reaching 31°C (88°F) and extremes hitting up to 42°C (108°F), creating a hot and humid climate marked by an average humidity of 71%. This month also sees considerable rainfall, with 156 mm (6.1 in) spread over 16 days, contributing to a tropical atmosphere. In stark contrast, January experiences much milder conditions, featuring average temperatures of 25°C (77°F) and maximums of 36°C (98°F). Precipitation is minimal during this month, totaling only 23 mm (0.9 in) over just 2 days, and the humidity levels drop to 51%. For those looking to explore the weather during this time, more details can be found at Si Satchanalai weather in January.

When comparing the weather between May and February, significant differences are evident. May experiences much warmer temperatures, with a minimum of 24°C (75°F) and an average high of 31°C (88°F), occasionally peaking at a sweltering 42°C (108°F). In contrast, February has cooler temperatures, ranging from a minimum of 15°C (59°F) to an average of 26°C (80°F), with a maximum of 38°C (101°F). Additionally, May is characterized by higher humidity at 71% and frequent rainfall, averaging 156 mm (6.1 inches) over 16 days, while February sees much lower precipitation at just 9 mm (0.4 inches) on only one day, alongside a drier humidity level of 48%. For more information, you can view the Si Satchanalai weather in February.

In comparing the weather between March and May, we see notable differences in temperature and precipitation. May's average temperature reaches a warm 31°C (88°F), with maximums soaring up to 42°C (108°F), significantly higher than March's maximum of 40°C (105°F). Additionally, May is much wetter, experiencing 156 mm (6.1 in) of precipitation over 16 days, while March sees a mere 8 mm (0.3 in) on just 1 day. The humidity is also markedly higher in May at 71%, compared to March's 45%. For more details on March's climate specifics, you can check Si Satchanalai weather in March.

In comparing the weather between April and May, it's evident that while both months share similar average temperatures, May tends to be slightly warmer with minimum temperatures reaching 24°C (75°F) compared to April's 21°C (70°F). Although both months experience high average temperatures of around 31°C (88°F), May features maximum temperatures that peak at 42°C (108°F), just slightly lower than April's maximum of 43°C (109°F). Precipitation levels see a notable increase in May, with 156 mm (6.1 in) spread over 16 days, in contrast to April’s 78 mm (3.1 in) over just 9 days and a significantly lower humidity of 49%. For more detailed information about April weather in the region, you can check Si Satchanalai weather in April.

In comparing the weather between May and June, we observe a slight decrease in average temperature, with June averaging 30°C (86°F) compared to May's 31°C (88°F). However, both months share the same minimum temperature of 24°C (75°F). The maximum temperatures also show a decline, with June reaching 40°C (104°F), down from May's peak of 42°C (108°F). Precipitation increases in June, totaling 187 mm (7.4 in) over 21 days, compared to May's 156 mm (6.1 in) over 16 days, and the humidity rises to 84% in June, up from 71% in May. For more specific insights, you can explore Si Satchanalai weather in June.

In comparing the weather between May and July, May tends to be slightly hotter, with average temperatures reaching up to 31°C (88°F) and maximums hitting 42°C (108°F). In contrast, July presents a cooler average temperature of 29°C (85°F) and a maximum of 40°C (105°F). However, July experiences higher humidity at 84%, compared to May's 71%, contributing to a more uncomfortable feel. Additionally, July sees more precipitation, with 202 mm (7.9 in) falling over 24 days, compared to May's 156 mm (6.1 in) over 16 days. For more detailed information, check Si Satchanalai weather in July.

In comparing the weather between May and August, we observe notable differences in temperature and precipitation. In May, temperatures range from a minimum of 24°C (75°F) to a maximum of 42°C (108°F), with an average of 31°C (88°F). During this month, the region experiences significant rainfall, totaling 156 mm (6.1 in) across 16 days, accompanied by a humidity level of 71%. Conversely, August presents milder temperatures, with a minimum of 24°C (76°F) and a maximum of 38°C (100°F), averaging around 28°C (83°F). However, it is wetter, receiving 325 mm (12.8 in) of rain over 26 days, and is characterized by higher humidity at 87%. For a detailed look at August weather, visit Si Satchanalai weather in August.

May and September exhibit distinct weather patterns despite their similar minimum temperatures. In May, the average temperature reaches 31°C (88°F), with maximum highs soaring up to 42°C (108°F), while experiencing significant precipitation of 156 mm (6.1 in) over 16 days at a humidity level of 71%. In contrast, September sees cooler average temperatures at 29°C (84°F) and maximums of 36°C (97°F), but is characterized by higher rainfall of 228 mm (9.0 in) over 22 days, resulting in increased humidity at 84%. For more details on September weather, visit Si Satchanalai weather in September.

In comparing the weather between May and October, it’s evident that both months share warm temperatures, albeit with some noticeable differences. May boasts a minimum temperature of 24°C (75°F) and can reach a scorching maximum of 42°C (108°F), presenting an average of 31°C (88°F). In contrast, October has slightly cooler averages, with a minimum of 22°C (72°F) and a maximum of 38°C (100°F), averaging around 28°C (83°F). Precipitation is also comparable, with May receiving 156 mm (6.1 inches) over 16 days and October seeing 148 mm (5.8 inches) over 17 days, both maintaining a humidity level of 71%. For more specific insights on October weather, you can refer to Si Satchanalai weather in October.

May and November exhibit distinct weather patterns. May is characterized by significantly higher temperatures, with minimums around 24°C (75°F) and maximums soaring up to 42°C (108°F), while November’s temperatures are milder, ranging from a minimum of 18°C (65°F) to a maximum of 36°C (97°F). Additionally, May experiences substantial rainfall, receiving about 156 mm (6.1 in) across 16 days, compared to November’s much drier conditions with only 24 mm (0.9 in) over 5 days. The humidity is also higher in May at 71%, contrasted with November’s lower humidity of 62%. For a closer look at November weather specifics, you can check out Si Satchanalai weather in November.

In comparing the weather between May and December, it is clear that May is significantly hotter and more humid. With average temperatures soaring to 31°C (88°F) and maximums reaching up to 42°C (108°F), the month is characterized by a high level of discomfort, especially given the 156 mm (6.1 in) of rainfall spread over 16 days. In contrast, December presents a more temperate climate, with average temperatures around 24°C (76°F), a maximum of 36°C (98°F), and notably lower humidity at 55%. Furthermore, December experiences minimal rainfall, with only 17 mm (0.7 in) over just 2 days, making it a much drier month. For more details, you can check Si Satchanalai weather in December.

Compare Si Satchanalai's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Si Satchanalai

In May, Si Satchanalai experiences a notable shift in weather patterns compared to earlier months, characterized by rising temperatures and increased humidity. With a maximum soaring to 42°C (108°F) and an average of 31°C (88°F), the heat is palpable, while the minimum dips to a comfortable 24°C (75°F). This month also brings a fair share of rainy days, with significant precipitation adding to the humid atmosphere, making it feel quite different from the dry season. As you plan your visit, keep in mind the unique climate of May, which can transform your experience in this vibrant region. For more detailed insights, visit Si Satchanalai Climate.