Last updated: August 27, 2025
May in Nai Harn, Thailand presents a warm and humid tropical climate, characterized by an average temperature of 28°C (83°F), with highs reaching up to 30°C (86°F) and lows around 26°C (78°F). This month experiences significant rainfall, with an impressive 225 mm (8.9 in) of precipitation spread over 26 days, making it one of the wetter months of the year. Humidity levels hover around 72%, creating a lush and vibrant environment, ideal for those who appreciate the rich beauty of Thailand's nature, though visitors should be prepared for frequent rain showers.
May in Nai Harn, Thailand, offers a warm symphony of temperatures, where the mercury typically hovers between 26°C (79°F) and a pleasant 30°C (86°F). As the month unfolds, early summer brings a reliable average of 28°C (83°F), making it a beloved time for beachgoers and sun-seekers alike. This month transitions seamlessly from the balmy April weather, retaining a consistent warmth that invites outdoor adventures. With minuscule fluctuations from previous months and a gentle breeze from the coming monsoons, May perfectly balances sun-soaked days with the anticipation of lush, vibrant landscapes. This trend towards stable, inviting temperatures makes it an ideal time to enjoy the natural beauty of Nai Harn while embracing the vibrant local culture.
In Nai Harn, Thailand, the month of May marks a significant transition in precipitation, with rainfall reaching 225 mm (8.9 in) over 26 days. This surge follows a notably wet April, which begins to set the stage for the monsoon season. As residents and visitors prepare for the more humid conditions, May’s consistent rain underscores a trend of increasing precipitation that typically peaks in the summer months. The gradual rise from April’s 160 mm serves as a precursor to June and September’s heavy downpours, illustrating the tropical climate's shift into its most water-rich period. Thus, May serves not only as a month of rain but also as a herald of the lush landscapes ahead, inviting nature lovers to witness the vibrant transformation of this beautiful region.
In Nai Harn, Thailand, the humidity in May hovers around a comfortable 72%, making it one of the less humid months of the year. Following the trend from the preceding months, humidity levels have gradually decreased from a high of 76% in January to this steady May figure, marking a slight reprieve before the more humid months of June and July, which see levels rise to 79%. As the year progresses, the humidity tends to climb, peaking in the rainy season with levels reaching up to 84% from September to December. Therefore, May serves as a charming transitional month, offering a balance between comfortable weather and the impending tropical warmth.
In Nai Harn, Thailand, the UV Index in May remains at a formidable 14, categorized as extreme, with a burn time of just 10 minutes. This month continues the trend seen from January through April, where the UV Index peaks at 15 in March and April before slightly dropping. Despite this dip, May still demands vigilant sun protection, mirroring the high levels of intensity throughout the early months of the year. Notably, the UV Index trends downward slightly as the year progresses, with June and July also showing values around 13. Given these consistently high readings, it's essential for visitors and locals alike to stay informed and protected. For detailed information, check the Nai Harn UV Index.
UV Risk Categories
In Nai Harn, Thailand, the month of May basks in the warmth of approximately 315 hours of sunlight, making it a delightful time to visit. As spring transitions into the early summer, May enjoys a steady glow, slightly less than the peak of March with its impressive 345 hours. This beautiful seaside destination showcases a trend of consistently abundant sunshine from the start of the year, with a vibrant accumulation peaking in the heart of spring before settling as summer arrives. The sunlight hours remain commendably high, even as the rainy season approaches, with June and July maintaining impressive totals in the low 300s. Thus, visitors can revel in the May sunshine, enjoying outdoor adventures and blissful beach days before the monsoons grace this tropical haven.
In Nai Harn, Thailand, the likelihood of sunny weather tends to decline as the year progresses into May, with only a 16% chance of clear skies, making it one of the least sunny months. Observing the trends, you can see that the sun shines more frequently in the early parts of the year, peaking in February at 47%, and steadily waning towards the monsoon season. By April, the chance of sun dips to 21% before reaching its yearly low in May. With the onset of the rainy season just around the corner, May's weather may present a mix of overcast days and the occasional sunshine, making it less reliable for sun-seekers.
In Nai Harn, Thailand, daylight duration reveals a fascinating pattern throughout the year. From January to April, the days gradually lengthen, shifting from 11 hours to 12 hours as spring approaches. May, a transitional month, maintains that 12-hour span, continuing the trend seen in the preceding months. This consistency holds steady through the summer and into the early autumn, with June through September also offering a full 12 hours of daylight. A slight decrease occurs in October, as daylight dwindles back to 11 hours, leading to a return to shorter days from November through December. This rhythm of light and dark not only defines daily life in Nai Harn but also enhances the allure of its stunning landscapes throughout the seasons.
In Nai Harn, Thailand, the month of May reflects a gentle lull in wind activity as the average wind speed drops to 3.9 m/s (9 mph), making it one of the calmer months of the year. Following a gradual decline since February's brisk 5.5 m/s (12 mph), this soft breeze ushers in the early summer, contrasting with the invigorating winds of January and December, which are among the strongest at 6.3 m/s (14 mph) and 5.4 m/s (12 mph), respectively. As the months transition into June and July, the winds pick up again, hinting at the dynamic weather patterns typical of this tropical paradise. Overall, May serves as a serene interlude, inviting tranquility before the winds resume their lively dance.
Weather in Nai Harn varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Nai Harn, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January exhibit similar temperature ranges, with January having a slightly lower average temperature of 27°C (81°F) compared to May's 28°C (83°F). However, May experiences significantly higher precipitation, totaling 225 mm (8.9 in) over 26 days, while January sees only 117 mm (4.6 in) over just 11 days. Humidity levels are slightly higher in January at 76% compared to May's 72%, making January feel a bit more humid despite the overall lower precipitation. For more details about January weather, you can check out this link: Nai Harn weather in January.
May and February present distinct weather patterns, each with their own characteristics. In February, temperatures are slightly lower with a minimum of 25°C (78°F) and an average of 27°C (82°F), while in May, the temperatures rise, featuring a minimum of 26°C (78°F) and an average of 28°C (83°F). Both months have a maximum temperature of 30°C (86°F for May and 87°F for February), indicating warm conditions throughout. However, May experiences significantly more precipitation, totaling 225 mm (8.9 in) over 26 days, compared to February's mere 15 mm (0.6 in) across just 4 days. Humidity levels are quite similar, with February at 73% and May at 72%, making both months feel quite humid. For a deeper look at February weather, you can visit Nai Harn weather in February.
In comparing the weather in May and March, both months exhibit similar temperature ranges, with daytime highs reaching around 30°C (86°F). However, May experiences significantly more precipitation, totaling 225 mm (8.9 in) over 26 days, while March sees only 41 mm (1.6 in) across just 9 days. Additionally, humidity is slightly higher in May at 72%, compared to 74% in March. For a more detailed look at March weather, you can visit Nai Harn weather in March.
May and April weather show some similarities, but also notable differences. Both months have an average temperature of 28°C (83°F), with maximums reaching up to 30°C (86-87°F). However, May experiences slightly higher minimum temperatures at 26°C (78°F) compared to April's 25°C (78°F). Precipitation in May is significantly greater, totaling 225 mm (8.9 in) over 26 days, which exceeds April's 160 mm (6.3 in) over 22 days. Additionally, humidity levels are slightly higher in May at 72% compared to April's 71%. For more detailed information on April weather, you can visit Nai Harn weather in April.
In comparing the weather between May and June, both months exhibit similar average temperatures, with minimums around 25-26°C (78°F) and maximums reaching 30°C (86-87°F). However, June tends to have slightly less precipitation, with 202 mm (8.0 in) falling over 23 days compared to May's 225 mm (8.9 in) across 26 days. Additionally, humidity levels increase in June to 79%, compared to May's 72%, making the air feel a bit more humid. For more specific insights into June weather, you can check Nai Harn weather in June.
In comparing the weather of May and July, both months exhibit relatively high temperatures, with May experiencing a slightly higher maximum average of 30°C (86°F) compared to July's 29°C (85°F). However, the overall conditions in May are marked by higher precipitation levels, totaling 225 mm (8.9 in) over 26 days, whereas July sees less rainfall at 169 mm (6.7 in) over only 17 days. The humidity levels also increase slightly in July to 79%, compared to May's 72%. For more details on weather conditions, you can check out Nai Harn weather in July.
In May, the weather is characterized by slightly higher humidity at 72% and a notable amount of precipitation, with 225 mm falling over 26 days. The temperature ranges from a minimum of 26°C (78°F) to a maximum of 30°C (86°F), resulting in a comfortable average of 28°C (83°F). In contrast, August sees a marginally lower minimum temperature of 25°C (77°F) and also maintains an average of 28°C (82°F), but experiences less precipitation at 174 mm over 20 days. The humidity in August increases to 82%, making the atmosphere feel a bit more oppressively humid. For a detailed view of August weather patterns, you can check Nai Harn weather in August.
May and September present similar warm temperatures, with May showing slightly higher maximums at 30°C (86°F) compared to September's 29°C (85°F). Both months have an average temperature of 28°C (82°F), but September boasts a slightly higher minimum temperature of 25°C (78°F) compared to May's 26°C (78°F). When it comes to precipitation, September receives more rainfall at 251 mm (9.9 in) across 24 days, while May experiences 225 mm (8.9 in) over 26 days. Additionally, humidity levels are noticeably higher in September at 84%, compared to May's 72%. For more specific insights, you can check the detailed forecast here: Nai Harn weather in September.
May and October exhibit relatively similar temperatures, with May having a slightly warmer average of 28°C (83°F) compared to October's 27°C (81°F). However, October typically experiences higher precipitation, totaling 294 mm (11.6 in) over 26 days, which is a significant increase from May's 225 mm (8.9 in) during the same number of days. Additionally, October tends to be more humid, with levels reaching 83% compared to May's 72%. This makes October feel slightly more oppressive despite its marginally cooler temperatures. For more information on specific weather conditions, you can check Nai Harn weather in October.
May and November exhibit relatively similar temperatures, with May showing slightly warmer averages. May's temperatures range from a minimum of 26°C (78°F) to a maximum of 30°C (86°F) and sees an average temperature of 28°C (83°F). In contrast, November has a minimum of 25°C (76°F) and an average of 27°C (81°F), peaking at 30°C (87°F). However, November experiences more rainfall, totaling 279 mm (11.0 in) over 25 days, compared to May's 225 mm (8.9 in) over 26 days. Humidity is also higher in November, reaching 84% compared to 72% in May. For more detailed information, you can check Nai Harn weather in November.
In May, temperatures are generally warm, with minimums around 26°C (78°F) and averages peaking at 28°C (83°F), reaching a maximum of 30°C (86°F). This month also experiences significant rainfall, with precipitation levels at 225 mm (8.9 in) across 26 days, leading to a humidity level of 72%. In contrast, December offers slightly cooler temperatures, with a minimum of 25°C (77°F) and an average of 27°C (81°F), also reaching highs of 30°C (87°F). Precipitation decreases to 174 mm (6.9 in) over 14 days, but the humidity is relatively higher at 84%. Overall, while both months are warm, December tends to be drier and more humid. For a more detailed look at December weather, check out Nai Harn weather in December.
As May unfolds in Nai Harn, the weather becomes a unique blend of warmth and moisture, marking a noticeable shift from the preceding months. While temperatures remain pleasant, averaging around 28°C (83°F), the rise in humidity to 72% and an increased chance of rainfall, with 225 mm across 26 days, create a lush and tropical ambiance. Unlike the drier and more stable months before, May’s frequent showers invigorate the landscape and foster a vibrant natural beauty, making it an enchanting time to experience the island’s lush greenery. For a deeper dive into what to expect, check out the detailed insights at Nai Harn Climate.