May Weather in Cha-am, Thailand

Last updated: August 27, 2025

In May, Cha-am, Thailand experiences a warm and humid climate, with maximum temperatures reaching 35°C (96°F) and an average temperature around 30°C (85°F). While the minimum temperature hovers at a comfortable 25°C (78°F), the humidity remains high at 79%, adding to the tropical feel. Rain is frequent, with approximately 103 mm (4.0 in) of precipitation spread over 16 days, making it essential for visitors to be prepared for occasional showers. Overall, May presents a blend of warmth and moisture, perfect for those seeking the vibrant atmosphere of this coastal destination.

May Temperature in Cha-am

In May, Cha-am, Thailand, embraces the true essence of summer with temperatures that signify a steady rise in warmth. The month opens with minimums around 25°C (78°F) and peaks at a sweltering 35°C (96°F), showcasing an array of warm days perfect for beach outings and tropical adventures. On average, May maintains a pleasant 30°C (85°F), making it an ideal time for those who love the heat. This trend follows April's summer-like vibe, but with May bringing slightly higher daily minimums, indicating that the summertime warmth is here to stay. As the month progresses, the consistent pattern of warm temperatures sets the stage for balmy evenings and sun-soaked days, inviting visitors to indulge in all that this vibrant destination has to offer.

May Weather in Cha-am: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Cha-am, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cha-am, 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).
JanFebMarAprMayJunJulAugSepOctNovDec808184858585848383828280
Data source: Temperature data for Cha-am 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 Cha-am

In May, Cha-am experiences a significant surge in precipitation, with 103 mm (4.0 in) of rain falling over 16 days. This marks a notable increase from the preceding months, reflecting the transition into the wet season. Following April's rainfall of 86 mm (3.4 in), May not only continues this upward trend but also sets the stage for even heavier downpours in the coming months. The extended number of rainfall days indicates that the region is embracing its tropical climate, with intermittent showers becoming a regular feature. This pattern foreshadows the more intense rainfall anticipated in the following months, as Cha-am moves further into its monsoon season.

May Precipitation Trends in Cha-am

The chart displays monthly precipitation patterns in Cha-am, 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 Cha-am, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec41153787103689510115523410628
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Cha-am

May marks a significant shift in humidity levels in Cha-am, Thailand, as the month experiences a notable increase to 79%, setting the stage for the upcoming rainy season. Starting from a more comfortable 58% in January, humidity rises gradually through the spring, culminating in the heavy humidity of June and July, where it peaks at an impressive 89%. This upward trend not only enhances the tropical feel of Cha-am but also indicates the transition to a wetter climate, with August reaching a soaring 90%. The steadily climbing figures suggest that May serves as a precursor to the humidity-laden months ahead, creating a lush, vibrant environment that characterizes this beautiful coastal region.

May Average Humidity in Cha-am

This chart illustrates the average monthly humidity levels in Cha-am, 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 Cha-am is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%59%62%69%79%87%89%90%87%83%77%66%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cha-am

In May, Cha-am, Thailand, experiences an extreme UV Index of 14, consistent with the intense sun exposure throughout the preceding months. With a burn time of just 10 minutes, it's crucial for visitors and locals alike to take proper precautions while enjoying the beautiful beaches and vibrant outdoor activities. This pattern of high UV readings persists into summer, underscoring the need for effective sun protection during this time. As the UV Index remains elevated from March through September, embracing sun safety measures is vital for a healthy and enjoyable experience. For more detailed information, check out the Cha-am UV Index.

Maximum UV Index Levels in Cha-am for May

The chart shows the monthly maximum UV Index (UVI) for Cha-am 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 Cha-am typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131414141314141413109
Data source: Cha-am 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 Cha-am

May in Cha-am, Thailand, basks in an impressive 325 hours of sunshine, reflecting the region's delightful spring climate. This month stands out as a time when the sun's embrace lingers, just slightly below April's peak of 324 hours. As we trace the path from January's 252 hours to June's 308 hours, it’s clear that light gradually increases, bringing warmth and vitality. The sunshine remains notably consistent through the summer months, with each month post-May offering a gentle decline in hours, yet retaining a charming allure. This trend highlights Cha-am's allure as a sun-soaked destination, ideal for those seeking bright days and balmy nights.

Monthly Sunshine Duration in Cha-am: May Highlighted

The May sunshine duration represents the total number of hours Cha-am 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.
JanFebMarAprMayJunJulAugSepOctNovDec252h303h340h324h325h308h288h284h275h285h297h315h
Data source: Cha-am May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cha-am During May

May in Cha-am, Thailand, offers a modest 34% chance of sunny weather, a significant dip compared to the bright and dry months preceding it. This reduction follows April's much higher likelihood of sunshine at 22%, signaling a transition into the rainy season. The trend indicates that as the year progresses into the warmer months of June, July, and August, the prospect of sunshine diminishes dramatically, plummeting to 15% and even lower. Therefore, while May may still feature some sun-kissed days, visitors should be prepared for the increased chance of rain as they enjoy this beautiful coastal destination.

Percentage of Sunny Days in May in Cha-am

The chart illustrates the percentage of sunny days in Cha-am 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 Cha-am experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%76%63%22%34%15%11%8%9%13%22%59%
Data source: Cha-am May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cha-am in May

In Cha-am, Thailand, the daylight duration exhibits a delightful consistency throughout the year. From January to February, residents enjoy 11 hours of daylight, providing a gentle start to the year. As spring approaches in March, daylight extends to 12 hours, a trend that continues through the warm months of April, May, and into summer. This steady 12-hour daylight stretches from March all the way through September, perfectly aligning with the peak of tourist season when the sun shines bright over the stunning beaches. As autumn sets in, daylight begins to gradually wane again, returning to 11 hours in October, then remaining stable through November and December. This rhythmic cycle of daylight not only shapes the local climate but also influences the vibrant lifestyle of those fortunate enough to bask in the sun-soaked beauty of Cha-am.

Average Daylight Hours in Cha-am for May

The chart illustrates the variation in daylight duration in Cha-am throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 27m11h 42m12h 3m12h 24m12h 42m12h 51m12h 46m12h 30m12h 10m11h 49m11h 31m11h 22m
Data source: Cha-am daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Cha-am

May in Cha-am, Thailand, greets visitors with a gentle breeze, averaging 3.2 m/s (7 mph). This consistent wind speed mirrors the tranquility of the previous month, April, where the winds were slightly calmer at 2.6 m/s (6 mph), creating an inviting atmosphere for beachgoers. As the region transitions into the summer months, winds remain steady through June and July. Interestingly, the winds dip to their lowest point in September with an average of just 2.3 m/s (5 mph), suggesting a brief calm before the seasonal shift. As the year wraps up, wind speeds pick up again, peaking at 4.3 m/s (10 mph) in December, showcasing the dynamic nature of Cha-am’s coastal climate throughout the year.

Average May Wind Speed in Cha-am

The chart displays monthly wind speed patterns in Cha-am, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.73.13.82.63.2 m/s3.23.23.12.32.93.64.3
Data source: Cha-am May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Cha-am Compares to Other Months

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

May weather is characterized by higher temperatures and greater humidity compared to January. With minimum temperatures around 25°C (78°F) and an average of 30°C (85°F), May often feels hotter, reaching maximums of 35°C (96°F). Additionally, May experiences more rain, accumulating 103 mm (4.0 in) over 16 days, resulting in a humidity level of 79%. In contrast, January offers milder conditions, with minimum temperatures of 19°C (67°F) and an average of 27°C (80°F), peaking at 32°C (89°F). This month sees significantly less precipitation, only 41 mm (1.6 in) over just three days, and a lower humidity level of 58%. For a detailed look at January's weather, visit Cha-am weather in January.

May and February display notable differences in weather patterns. In May, temperatures range from a minimum of 25°C (78°F) to a maximum of 35°C (96°F), with an average of 30°C (85°F). This month also sees significant precipitation, averaging 103 mm (4.0 in) over 16 days, resulting in higher humidity levels of 79%. In contrast, February offers milder conditions, with temperatures ranging from a low of 22°C (73°F) to a high of 32°C (90°F), and an average of 27°C (81°F). Notably, February experiences much less rainfall, with only 15 mm (0.6 in) falling over just 3 days, contributing to a lower humidity of 59%. For further details, you can check Cha-am weather in February.

In comparing the weather between March and May, May tends to be hotter and more humid. The average temperature in May reaches around 30°C (85°F), with maximums soaring to 35°C (96°F), while March has slightly cooler temperatures, averaging 29°C (84°F) and peaking at 33°C (92°F). Additionally, May experiences significantly more rainfall, with 103 mm (4.0 in) over 16 days, compared to only 37 mm (1.4 in) in March, which sees precipitation on just 3 days. Moreover, the humidity level in May stands at 79%, making it feel much muggier than the 62% humidity typical in March. For more detailed insights, you can explore Cha-am weather in March.

In comparing the weather of April and May, we see that May tends to be slightly warmer, with an average temperature of 30°C (85°F) compared to April’s 29°C (85°F). Both months experience similar maximum temperatures, peaking at 35°C (95°F) in April and 35°C (96°F) in May. However, May brings significantly more rainfall, with 103 mm (4.0 in) of precipitation over 16 days, whereas April sees only 86 mm (3.4 in) across 11 days. Moreover, the humidity levels are higher in May at 79%, compared to April's 69%. For more information on April's weather patterns, you can visit Cha-am weather in April.

In comparing the weather conditions of May and June, we see that both months experience warm temperatures, with June having a slightly higher minimum temperature of 26°C (79°F) compared to May's 25°C (78°F). The average temperature remains relatively stable, with May averaging 30°C (85°F) and June averaging 29°C (85°F). However, June experiences less precipitation, totaling 68 mm (2.7 in) over 14 days, while May sees more rain at 103 mm (4.0 in) across 16 days. Additionally, June has a higher humidity level of 87% compared to May's 79%. For more detailed information on weather patterns, you can refer to Cha-am weather in June.

In comparing the weather between May and July, it's evident that both months experience warm temperatures, with May slightly warmer on average, reaching around 30°C (85°F) compared to July's average of 29°C (84°F). The maximum temperatures in May can peak at 35°C (96°F), while July's maximum is a bit cooler at 34°C (94°F). Precipitation levels are quite similar, with May recording 103 mm (4.0 in) over 16 days, and July following closely with 95 mm (3.8 in) over 18 days. Additionally, humidity tends to be higher in July at 89% compared to 79% in May, making July feel more muggy. For more details on July's weather, you can check Cha-am weather in July.

In May, the weather features warmer average temperatures, peaking at around 30°C (85°F) and reaching a maximum of 35°C (96°F). The month experiences a considerable amount of rainfall, with precipitation totaling 103 mm (4.0 in) over 16 days and a humidity level of 79%. In contrast, August sees slightly cooler average temperatures, averaging 28°C (83°F) and maxing out at 34°C (93°F), while remaining consistently humid at 90%. August also brings about almost the same amount of rainfall, at 101 mm (4.0 in), but stretches over 19 days. For more details, check out Cha-am weather in August.

In comparing the weather between May and September, both months experience warm temperatures, but September tends to be slightly cooler on average. May boasts a higher average temperature of 30°C (85°F), with maximums reaching 35°C (96°F), while September has an average of 28°C (83°F) and a maximum of 34°C (94°F). However, September sees significantly more rainfall, with 155 mm (6.1 in) over 22 days compared to May's 103 mm (4.0 in) over 16 days. Additionally, humidity levels are higher in September at 87%, compared to May's 79%. For more details on September's weather conditions, visit Cha-am weather in September.

When comparing the weather in May and October, it's evident that both months experience warm temperatures, but October tends to be slightly cooler on average. In May, temperatures range from a minimum of 25°C (78°F) to a maximum of 35°C (96°F), with an average of 30°C (85°F). October, on the other hand, has a narrower temperature range, with a minimum of 24°C (76°F) and a maximum of 33°C (91°F), averaging 28°C (82°F).

Precipitation is notably higher in October, with 234 mm (9.2 in) spread over 24 days, compared to just 103 mm (4.0 in) on 16 days in May. Additionally, October experiences slightly higher humidity, averaging 83% compared to 79% in May. For more detailed insights into October weather, you can explore Cha-am weather in October.

In comparing the weather between May and November, May typically exhibits warmer conditions, with average temperatures reaching 30°C (85°F) and maximums occasionally soaring to 35°C (96°F). This month also experiences higher humidity at 79% and more frequent rainfall, with precipitation measured at 103 mm (4.0 in) over 16 days. In contrast, November sees slightly cooler temperatures, averaging 28°C (82°F), and maximums of 32°C (90°F). The month brings a comparable level of precipitation at 106 mm (4.2 in) but over fewer days—13 in total—along with a marginally lower humidity of 77%. For more details, you can check out Cha-am weather in November.

In comparison to May, December offers a more temperate climate, with minimum temperatures around 20°C (68°F) and an average of 27°C (80°F), contrasted with May's warmer lows of 25°C (78°F) and an average temperature of 30°C (85°F). The maximum temperatures in December peak at 31°C (89°F), making them generally milder than May's highs reaching 35°C (96°F). Additionally, December sees significantly less rainfall, with only 28 mm (1.1 in) over about 4 days, compared to May's 103 mm (4.0 in) spread over 16 days. Humidity levels are also lower in December at 66%, providing a more comfortable environment compared to May's 79%. For a more detailed look, check out Cha-am weather in December.

Compare Cha-am's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Cha-am

As May unfolds in Cha-am, visitors can expect warm temperatures with a noticeable increase in humidity, creating a tropical ambiance that is both vibrant and relaxing. While the month features several sunny days, it is also marked by increased rainfall, with precipitation being observed on about half of the month. This combination of warmth and moisture sets May apart from previous months, making it a perfect time for lush landscapes but also calling for readiness for those sudden rain showers. For more detailed insights into what to expect throughout the year, check out Cha-am Climate.