May Weather in Erawan, Thailand

Last updated: August 27, 2025

In May, Erawan, Thailand experiences a warm tropical climate characterized by maximum temperatures reaching up to 40°C (104°F) and an average of 29°C (84°F). The nights offer a mild respite with minimum temperatures around 22°C (72°F). May is also a relatively wet month, with 166 mm (6.6 in) of rainfall occurring over 19 days, contributing to a humidity level of 69%. Visitors can expect a vibrant and lush landscape, but should be prepared for afternoon showers amidst the heat.

May Temperature in Erawan

In May, Erawan, Thailand, experiences a noticeable shift towards warmer temperatures as the minimum rises to 22°C (72°F), signaling the transition to the hot season. The average temperature hovers around 29°C (84°F), making it one of the coziest months to explore the lush surroundings. With maximum temperatures reaching up to 40°C (104°F), visitors can expect hot and sunny days ideal for enjoying outdoor adventures. Compared to the preceding months, May's warmth marks a significant increase, especially from the cooler January and February, encouraging travelers to stay hydrated and seek shade while soaking in the natural beauty of this stunning region.

May Weather in Erawan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Erawan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Erawan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec747682848484838282807772
Data source: Temperature data for Erawan 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 Erawan

May marks a significant turning point in Erawan, Thailand, as the region experiences a dramatic surge in precipitation. With 166 mm (6.6 in) of rainfall over 19 days, May demonstrates a stark increase compared to the preceding months, highlighting the onset of the monsoon season. This month alone accounts for a substantial portion of the annual precipitation, setting the stage for even wetter months ahead, such as July and August. The consistent rainfall during May not only revitalizes the lush greenery that characterizes this tropical landscape, but it also marks an essential period for agriculture. As the skies open up, the transformative power of rain becomes evident, fostering both abundance and beauty in this serene region.

May Precipitation Trends in Erawan

The chart displays monthly precipitation patterns in Erawan, 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 Erawan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4102873167165207243208139148
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Erawan

As May arrives in Erawan, Thailand, the transition from the dry season to the monsoon is unmistakable. With humidity levels escalating to 69%, May marks a significant uptick compared to the preceding months, where readings hovered in the lower 40s and 50s. This surge signals the onset of the wet season, setting the stage for the dramatic increases that follow in June and July, when humidity peaks at 81% and 83%, respectively. The lush greenery that emerges, paired with the invigorating scent of rain-soaked earth, provides a stark contrast to the drier months of January through April. As the year progresses, Erawan becomes enveloped in a humid embrace, establishing a vibrant tapestry of nature that thrives in the warmth and moisture of summer.

May Average Humidity in Erawan

This chart illustrates the average monthly humidity levels in Erawan, 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 Erawan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec52%49%39%40%69%81%83%87%86%74%63%57%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Erawan

In May, Erawan, Thailand, experiences a sustained UV Index of 14, categorized as extreme, which indicates a significant need for sun protection, as the burn time is a mere 10 minutes. This trend of high UV levels begins in February and remains prevalent through June, revealing that the region's sun intensity peaks during this period. As summer approaches, both March and April show escalating UV levels, hitting their highest in May and sustaining this intensity into the following months. With climate trends leaning towards extreme UV exposure, visitors and residents alike should take heed and prioritize their sun safety. For more detailed information, check the Erawan UV Index.

Maximum UV Index Levels in Erawan for May

The chart shows the monthly maximum UV Index (UVI) for Erawan 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 Erawan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10111314141314141412109
Data source: Erawan 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 Erawan

In Erawan, Thailand, May brings a delightful 317 hours of sunshine, continuing the trend of bright skies established in April and preceding a slight dip in hours as summer approaches. The increase from 314 hours in April highlights the region's beautiful transition into late spring, where lush greenery thrives under the warm sun. Following May, there is a noticeable decline, with June recording 282 hours, yet this month still offers plenty of radiant days for visitors to enjoy. Overall, the first half of the year boasts impressive sunlight hours, providing a vibrant backdrop for outdoor adventures in this stunning locale.

Monthly Sunshine Duration in Erawan: May Highlighted

The May sunshine duration represents the total number of hours Erawan 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.
JanFebMarAprMayJunJulAugSepOctNovDec255h295h323h314h317h282h277h260h276h280h304h314h
Data source: Erawan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Erawan During May

In Erawan, Thailand, the likelihood of sunny weather takes a noticeable dip as May approaches, with a forecasted 41% chance of sunshine. This marks a sharp decline from the clear skies of earlier months, particularly February's impressive 86% and even January's solid 81%. The transition into April sees the sunniest days dwindling to just 25%, setting a trend that continues into May, where the probability of sunshine drops further. The shift hints at the onset of the rainy season, leading into the following months characterized by even less sunshine, with June through August struggling with a mere 14% chance. As such, while May offers a modest chance for sunny adventures, travelers may want to prepare for the possibility of rain.

Percentage of Sunny Days in May in Erawan

The chart illustrates the percentage of sunny days in Erawan 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 Erawan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec81%86%66%26%41%14%14%14%15%29%59%81%
Data source: Erawan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Erawan in May

In Erawan, Thailand, the pattern of daylight duration reveals a gradual transition as the year unfolds. From January to April, daylight remains consistent at 11 to 12 hours, hinting at a delicate balance during the early months. As May arrives, the daylight continues at 12 hours, perfectly bridging the spring into the summer. This trend persists into June and July, where daylight peaks at 13 hours, offering longer evenings filled with vibrant energy. As the season shifts back into late summer and autumn, daylight begins to recede, returning to 12 hours in August and September, before settling back to 11 hours by October through December. This rhythmic cycle of daylight not only defines the natural beauty of Erawan but also invites locals and visitors to embrace the changing light throughout the year.

Average Daylight Hours in Erawan for May

The chart illustrates the variation in daylight duration in Erawan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 12m11h 33m12h 2m12h 31m12h 55m13h 7m13h 1m12h 40m12h 12m11h 43m11h 18m11h 6m
Data source: Erawan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Erawan

In Erawan, Thailand, the wind patterns reveal a gentle yet consistent rhythm throughout the year. January to April experiences the highest winds, peaking at 1.8 m/s (4 mph) in January, before tapering off to 1.3 m/s (3 mph) in both April and May. This brief lull in wind speed gives way to a notable resurgence in the summer months, where June through November maintain a steady 1.7 m/s (4 mph) average, creating a refreshing atmosphere that complements the region's lush landscapes. Despite a slight decrease to 1.5 m/s (3 mph) in September and October, the winds consistently pick back up to 1.7 m/s (4 mph) in November, hinting at a seasonal cycle that keeps the air alive and invigorating throughout the year.

Average May Wind Speed in Erawan

The chart displays monthly wind speed patterns in Erawan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.71.71.31.3 m/s1.71.71.61.51.51.71.8
Data source: Erawan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Erawan Compares to Other Months

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

In May, the weather is significantly warmer and more humid compared to January, with average temperatures soaring up to 29°C (84°F) and maximums reaching as high as 40°C (104°F). Rainfall is also more prevalent in May, with approximately 166 mm (6.6 in) of precipitation spread over 19 rainy days, resulting in a humid environment with 69% humidity. In contrast, January offers a much cooler climate, with average temperatures around 23°C (74°F) and maximums of 35°C (95°F). This month features minimal rainfall, with only 4 mm (0.2 in) occurring over just 1 day, leading to a drier atmosphere with 52% humidity. For more detailed insights, check out Erawan weather in January.

May and February present stark contrasts in weather patterns. In May, temperatures soar with a minimum of 22°C (72°F) and an average high of 29°C (84°F), peaking at a sweltering 40°C (104°F). This month also experiences significant rainfall, with 166 mm (6.6 in) of precipitation spread across 19 days, contributing to a high humidity level of 69%. In contrast, February offers much cooler temperatures, ranging from a minimum of 13°C (55°F) to an average of 24°C (76°F), with a maximum of 37°C (100°F). Remarkably, precipitation is scarce in February, with just 10 mm (0.4 in) falling over only 1 day, leading to a lower humidity of 49%. For more details on February weather, you can check out Erawan weather in February.

In comparing the weather between May and March, it's evident that May experiences warmer temperatures, with a minimum of 22°C (72°F) and an average of 29°C (84°F), compared to March’s lower minimum of 17°C (63°F) and an average of 28°C (82°F). Additionally, May sees a higher maximum temperature of 40°C (104°F), while March peaks at 39°C (103°F). Precipitation levels are significantly greater in May, with 166 mm (6.6 in) falling over 19 days, in stark contrast to March's modest 28 mm (1.1 in) over just 7 days. Humidity also tends to be higher in May, averaging 69%, compared to March's 39%. For more detailed insights into March weather, you can visit Erawan weather in March.

In comparing the weather of May and April, both months share an average temperature of 29°C (84°F). However, May experiences higher minimum temperatures at 22°C (72°F), compared to April's 16°C (61°F). Notably, April records a slightly higher maximum temperature of 41°C (106°F) versus May's peak of 40°C (104°F). When it comes to precipitation, May is significantly wetter, with 166 mm (6.6 in) falling across 19 days, while April sees only 73 mm (2.9 in) over 11 days. Additionally, May's humidity level is considerably higher at 69%, compared to April’s 40%. For more detailed information, you can visit Erawan weather in April.

May and June both experience warm temperatures, but there are some notable differences in their weather patterns. In May, the minimum temperature is slightly lower at 22°C (72°F) with a maximum reaching 40°C (104°F), while June starts with a minimum of 23°C (74°F) and a maximum of 38°C (101°F). Precipitation levels are quite similar, with May receiving 166 mm (6.6 in) and June slightly less at 165 mm (6.5 in), both over 19 days. However, June features higher humidity at 81%, compared to May's 69%, making the air feel more muggy as the month progresses. For more detailed weather insights, you can check out Erawan weather in June.

Comparing the weather in May and July reveals some interesting similarities and differences. Both months have an average temperature of 29°C (84°F), but May tends to be slightly hotter, with a maximum of 40°C (104°F) compared to July's 38°C (102°F). July experiences more rainfall, with 207 mm (8.1 in) over 21 days, while May has 166 mm (6.6 in) distributed over 19 days. Additionally, July is notably more humid, with a humidity level of 83% compared to May's 69%. For a closer look at July's weather specifics, check out Erawan weather in July.

May and August present notable differences in weather conditions. In May, temperatures range from a minimum of 22°C (72°F) to a maximum of 40°C (104°F), with an average of 29°C (84°F), while August experiences slightly milder temperatures, with a minimum of 23°C (74°F) and a maximum of 37°C (98°F), averaging 28°C (83°F). Precipitation significantly increases in August, reaching 243 mm (9.6 in) over 22 days compared to May’s 166 mm (6.6 in) across 19 days, resulting in higher humidity levels in August at 87%, compared to 69% in May. For a more detailed overview, you can check Erawan weather in August.

In May, temperatures can soar, with average highs reaching 29°C (84°F) and peaks of up to 40°C (104°F), while September offers slightly cooler conditions, with an average high of 28°C (82°F) and a maximum of 35°C (95°F). However, both months experience high humidity, with September being particularly humid at 86%, compared to May's 69%. Precipitation is more frequent in September, with 208 mm (8.2 in) over 22 days, whereas May sees 166 mm (6.6 in) over 19 days. For more detailed information on September weather, you can visit Erawan weather in September.

In May, the weather is typically warmer, with average temperatures reaching up to 29°C (84°F) and maximums hitting as high as 40°C (104°F), while October sees slightly cooler conditions, with averages around 27°C (80°F) and maximums of 35°C (95°F). Despite the higher temperatures in May, it also experiences more rainfall, with 166 mm (6.6 in) over 19 days compared to October's 139 mm (5.5 in) over 17 days. Humidity is also higher in October at 74%, compared to May's 69%. For a more detailed look at weather conditions in October, visit Erawan weather in October.

In May, temperatures soar with a minimum of 22°C (72°F) and average highs reaching up to 40°C (104°F), making it a notably hot month. The weather is humid, with 69% humidity and significant rainfall of 166 mm (6.6 in) spread across 19 days, creating a rather damp atmosphere. In contrast, November offers a more temperate climate, featuring milder temperatures that range from a minimum of 15°C (59°F) to a maximum of 34°C (94°F) and an average of 25°C (78°F). Rainfall is significantly lower in November, at just 14 mm (0.5 in) over 3 days, along with a slight decrease in humidity to 63%. For a closer look at November's weather specifics, check out Erawan weather in November.

The weather in May is significantly warmer and more humid compared to December. With temperatures ranging from a minimum of 22°C (72°F) to a scorching maximum of 40°C (104°F), May experiences an average temperature of 29°C (84°F). This month also sees substantial rainfall, with about 166 mm (6.6 in) of precipitation over 19 days, resulting in a humidity level of 69%. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 33°C (92°F) and an average of 22°C (73°F). Rainfall is minimal, at just 8 mm (0.3 in) over 2 days, contributing to a dryer atmosphere with a humidity level of 57%. For more insights on December weather, you can visit Erawan weather in December.

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Conclusion: What to Expect From May Weather in Erawan

As May unfolds in Erawan, the weather reveals a striking contrast to previous months. With temperatures often soaring to maximums around 40°C, the month is characterized by a noticeable increase in warmth, making it a distinctly hot time of year. Coupled with a humidity level of 69%, the air feels especially heavy and oppressively warm. May also marks the beginning of the rainy season, as evidenced by approximately 19 days of precipitation resulting in about 166 mm of rain, adding a refreshing but occasionally disruptive element to the typically dry atmosphere experienced in the earlier months. For a deeper understanding of what to expect throughout the year, visit Erawan Climate.