Last updated: January 18, 2025
Surat Thani, Thailand, experiences a tropical monsoon climate classified under the Köppen-Geiger system as Am. The region witnesses a significant temperature variation, with a minimum recorded at 16°C (62°F) in February, rising to an average of 27°C (82°F) throughout the year. The hottest month, April, can see temperatures soar to a sweltering maximum of 40°C (105°F). This dynamic climate not only influences local weather patterns but also shapes the lifestyle and agricultural practices of its residents.
Surat Thani, Thailand, presents a distinct seasonal temperature pattern, characterized by a gradual warming from January to April, culminating in peak heat during the hottest months. January starts with a comfortable minimum of 19°C (66°F) and a maximum of 36°C (98°F), while February sees a slight drop in lows to 16°C (62°F) but an increase in maximum temperatures touching 38°C (101°F). March and April mark the transition to the warmest period, with consistent highs reaching up to 40°C (104°F in March and 105°F in April), suggesting a burgeoning heat that can be quite intense. As the monsoon season approaches in May, the temperatures slightly stabilize, hovering around 22°C (72°F) for minimums and averaging 28°C (83°F). The subsequent months of June through August maintain a steady warmth, with maximum temperatures fluctuating between 36°C and 38°C (97°F to 101°F), before gradually cooling as the year winds down into October and December, where highs drop to around 34°C (93°F). Despite the variations, the climate remains predominantly warm throughout the year, illustrating Surat Thani's tropical monsoon characteristics.
In December, Ko Samui experiences a minimum temperature of 24°C (76°F) and peaks at 32°C (89°F) in June, making it a warm destination year-round monthly temperatures in Ko Samui. Similarly, Ko Pha Ngan has a minimum of 24°C (75°F) in December and reaches a maximum of 31°C (89°F) in June, providing a comparable climate monthly temperatures in Ko Pha Ngan. Koh Tao mirrors these conditions, with a minimum of 24°C (75°F) in December and a maximum of 31°C (89°F) in May monthly temperatures in Koh Tao.
Surat Thani, Thailand, exhibits a distinct precipitation pattern that reflects its tropical monsoon climate. January begins the year with a notable rainfall of 129 mm (5.1 in) over approximately 12 days, signaling the start of the wet season. This trend fluctuates significantly in February, with rainfall dropping to just 27 mm (1.0 in) over 5 days, before gradually increasing again in March to 40 mm (1.6 in). The most substantial precipitation occurs from April through November, with April experiencing 170 mm (6.7 in), which sets the stage for the more intense summer rains.
The apex of rainfall in Surat Thani arrives during the peak months of October and November, where monthly totals soar to 272 mm (10.7 in) and 296 mm (11.6 in), respectively. This heavy precipitation leads to higher frequency of rain days, especially in October, which sees rainfall on 27 days. Conversely, the driest period occurs from February to March, where the average number of rain days remains low. Throughout the wet season, monthly averages fluctuate, with September recording 198 mm (7.8 in) and May reaching 190 mm (7.5 in), effectively nourishing the lush landscapes of this tropical region.
In Surat Thani, Thailand, the seasonal sunshine duration reveals a clear trend towards increased sunlight as the year progresses from winter into summer. Starting with 247 hours of sunshine in January, the region experiences a gradual increase, peaking in March with an impressive 344 hours. This upward trend highlights a shift as the days lengthen and temperatures warm, creating optimal conditions for sunlight. Although sunshine hours dip slightly to 308 hours in both April and May, these months still boast abundant sun, emphasizing the transition into the rainy season without a significant decline in brightness.
As the monsoon season approaches, sunshine hours begin to wane, with June and July offering 293 hours and 308 hours, respectively, reflecting the onset of increased rainfall but still maintaining a respectable amount of clear skies. By September, however, the sunshine hours decrease to 272 hours, signaling the peak of the rainy season. Following this period, October and November show a continued reduction, each with 274 hours, as cloud cover becomes more prevalent. By December, the sunshine duration slightly rebounds to 293 hours, indicating a return to clearer conditions as the year closes. Overall, the data illustrates the interplay between rainfall and sunshine in Surat Thani, showcasing a distinct pattern of bright, sun-filled days during the dry months, with an understandable reduction as the monsoon rains take hold.
The UV Index in Surat Thani, Thailand, showcases consistently high values throughout the year, indicative of the region's tropical climate and proximity to the equator. Starting in January, the UV Index registers at 12, categorized as extreme, with an alarmingly short burn time of just 10 minutes for unprotected skin. This trend escalates to a peak of 15 in both March and April, reaffirming the urgent need for sun protection in these months. Even with the onset of the rainy season in May, the index remains unyielding at 15, highlighting that sun safety is a year-round concern for residents and visitors alike.
From June through October, the UV Index stabilizes at 14, maintaining the extreme exposure category, which ensures that sun protection is essential for any outdoor activities. Despite a slight decrease to 12 in November and 11 in December, the risk of skin damage remains significant, with a burn time still limited to just 10 minutes. This persistent high UV Index throughout the year underscores the importance of adopting protective measures, such as wearing sunscreen, protective clothing, and sunglasses, to mitigate the associated health risks of extended sun exposure in Surat Thani.
UV Risk Categories
In Surat Thani, Thailand, daylight duration exhibits a consistent pattern influenced by its equatorial location, maintaining relatively stable hours throughout the year. January and February both offer about 11 hours of daylight, providing a gentle start to the year. As March approaches, the daylight increases to 12 hours, signifying the arrival of longer days that persist through much of the summer months. From April to August, this consistent 12-hour daylight duration allows residents and visitors ample time to engage in outdoor activities and enjoy the natural beauty of the region.
As the year transitions to the latter months, daylight hours begin to taper off again, with both October and November returning to 11 hours. December finishes the year similarly with 11 hours of daylight. This annual rhythm of daylight duration not only enhances the predictability of seasonal activities but also underscores the tropical climate of Surat Thani, where the variation in daylight is subtle compared to temperate regions. Overall, residents benefit from a comfortable balance of sunshine and warmth year-round, fostering a vibrant outdoor lifestyle.
Ko Pha Ngan, Thailand, experiences a tropical climate marked by warm temperatures throughout the year, with averages ranging from 27°C (81°F) in the cooler months to 29°C (84°F) during the warmer months. The island sees its highest rainfall in November, with 313 mm (12.3 in), while February typically has the least precipitation at just 39 mm (1.5 in). Sunshine hours are plentiful, peaking in March with 346 hours, ensuring ample sunny days despite seasonal rains. For detailed climate information, visit Ko Pha Ngan climate.
Ko Samui, Thailand experiences a tropical climate characterized by warm temperatures year-round. Average monthly temperatures range from 27°C (81°F) to 28°C (82°F), with peaks reaching up to 32°C (89°F) in the warmer months of May and June. Rainfall varies significantly, with October receiving the highest precipitation at 241 mm (9.5 in), while February and March are notably drier, averaging around 39 mm (1.5 in). Despite the rain, the island enjoys ample sunshine, particularly in March, which sees up to 346 hours of sun. For more detailed information, visit Ko Samui climate.
Koh Tao, Thailand enjoys a tropical climate with warm temperatures year-round, averaging between 27°C (81°F) and 30°C (86°F) during the day. The hottest months are April and May, where highs can reach up to 31°C (88°F) and 89°F respectively. Rainfall is prominent, especially from October to November, with October receiving the highest precipitation at 242 mm (9.5 in). Conversely, February sees the least rain at only 37 mm (1.5 in) and boasts the most sunshine hours in the early year with 307 hours. For more details, visit Koh Tao climate.
Surat Thani, Thailand, experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Daily temperatures generally range from a minimum of 21°C (71°F) in February to a maximum of 36°C (97°F) in April and July. The monsoon seasons in May, October, and November see the highest precipitation, with November receiving up to 317 mm (12.5 in). Despite the heavy rains, the region enjoys considerable sunshine, particularly in March, which records up to 344 hours. For more detailed weather information, visit Surat Thani climate.
In conclusion, Surat Thani, Thailand, offers a unique climate characterized by its tropical monsoon conditions, ample sunlight, and elevated UV levels throughout the year. The consistent patterns of temperature, precipitation, sunshine duration, and daylight hours reflect the region's equatorial setting, making it a captivating destination for both locals and travelers. With extreme UV Index readings and significant rainfall during the monsoon months, it becomes paramount for residents and visitors to prioritize sun safety and prepare for the seasonal shifts in weather. As Surat Thani continues to thrive under its warm climate, understanding these patterns enriches the appreciation for its natural beauty and influences daily life in this vibrant tropical locale.