Last updated: August 27, 2025
In September, Ban Ko Lan, Thailand, experiences a warm tropical climate characterized by a maximum temperature of 31°C (88°F) and an average of 28°C (83°F), with a comfortable minimum of 25°C (78°F). This month is marked by significant precipitation, receiving approximately 235 mm (9.3 in) of rain over 22 days, contributing to a high humidity level of 87%. Visitors should prepare for frequent showers while enjoying the lush, vibrant landscapes that this tropical paradise has to offer.
In September, Ban Ko Lan enjoys a pleasant climate, with temperatures ranging from a minimum of 25°C (78°F) to a maximum of 31°C (88°F). This month maintains an average temperature of 28°C (83°F), reflecting a slight drop in heat as the peak summer months fade. The evenings offer a touch of comfort as the mercury barely dips, while the warm days make it perfect for beach lovers and outdoor enthusiasts. As the rainy season progresses, expect occasional showers, but overall, September provides an inviting tropical atmosphere, perfect for exploring this stunning island paradise.
In September, Ban Ko Lan experiences a significant peak in precipitation, with 235 mm (9.3 in) of rain falling over 22 days, making it the wettest month of the year. This dramatic uptick in rainfall contrasts sharply with the preceding months and signals the height of the rainy season. The increase in both precipitation and rainy days sets a trend that begins in May, continues through August, and culminates in September's intense downpours. Following September, rainfall remains substantial in October with 226 mm (8.9 in), indicating that the moist conditions persist as the region transitions into the later months of the year. This pattern not only highlights the onset of lush landscapes but also underscores the importance of this time for local agriculture and ecosystems.
September in Ban Ko Lan, Thailand, marks the tail end of a particularly humid season, with an average humidity level of 87%. This represents a slight decrease from the peak of 88% observed in August, but the air remains thick and sticky, characteristic of the monsoon period. As the year transitions, humidity levels have steadily climbed from 59% in January to this September high, reflecting the growing warmth and moisture of the region. Following September, a gradual decline begins, bringing relief as October falls to 83%. This trend highlights the significant humidity fluctuation throughout the year, with the latter months often dominated by tropical moisture, especially in the peak summer months.
In September, Ban Ko Lan experiences a UV Index of 13, categorized as extreme, which means sunbathers should limit their exposure to just 10 minutes to prevent skin damage. This trend follows a summer marked by consistently high UV levels, where the index reached its peak at 14 from March through August. As the season transitions, the UV intensity only slightly decreases in both September and October, remaining at an extreme level that demands caution. Visitors to this beautiful island should remain vigilant about sun safety, especially given the ongoing high UV conditions throughout the year. For more details on the UV Index trends, visit Ban Ko Lan UV Index.
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As September rolls in, Ban Ko Lan, Thailand, continues to bask in the warmth of the sun, with an impressive 267 hours of sunshine. This marks a slight decline from the peak hours of summer, notably March with 336 hours and April at 321 hours. While it’s a dip, September still offers a delightful array of sunny days, making it an ideal time for beachgoers and nature lovers alike. The sunshine hours gradually taper off as the year progresses, yet the month maintains a solid brightness that bridges the vibrant summer months with the cooler, more tranquil days ahead. Visitors can relish the lingering warmth before the onset of autumn, making September a unique blend of summer's charm and the approaching serenity of fall.
In Ban Ko Lan, Thailand, the likelihood of experiencing sunny weather in September is notably low, hovering around just 9%. This trend of diminished sunshine continues a pattern that begins in more vibrant months like February, where sunshine chances peak at 74%, before sharply declining as the year progresses. By the time September arrives, it falls into a stretch of the year characterized by increasingly overcast conditions, following a particularly bleak stretch from June through August, where the sun barely makes an appearance. As autumn approaches, the sunny skies seem a distant memory, emphasizing September as one of the least favorable months for sun-seekers looking to bask in Ban Ko Lan's renowned tropical ambiance.
As September rolls into Ban Ko Lan, Thailand, the daylight duration remains consistent, with the sun gracing the region for 12 hours each day. This steady period of brightness continues the trend established from March through August, creating a perfect backdrop for outdoor activities and exploration. The long hours of daylight not only enhance the island's vibrant landscapes but also foster a lively atmosphere, inviting both locals and travelers to soak up the sun before the days gradually shorten in October. With this balance of light, September is truly a golden month for enjoying all that Ban Ko Lan has to offer.
In September, Ban Ko Lan experiences a gentle breeze with an average wind speed of 3.5 m/s (8 mph), marking the month as one of the calmer periods of the year. This slight dip in wind speed follows a trend observed from the peak winds of June and July, where gusts reached 4.9 m/s (11 mph) and 4.8 m/s (11 mph), respectively. As the year progresses into October, the wind picks up slightly to 3.8 m/s (9 mph), suggesting a gradual return to more active breezes. Overall, September offers a tranquil atmosphere, perfect for relaxation, contrasting with the lively winds that characterize the preceding summer months.
Weather in Ban Ko Lan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ban Ko Lan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is noticeably warmer and more humid, with average temperatures around 28°C (83°F) and humidity levels reaching 87%. The month features significant rainfall, with about 235 mm (9.3 in) spread over 22 days, creating a lush and vibrant environment. In contrast, January offers a milder climate with average temperatures around 27°C (81°F) and much lower humidity at 59%. Precipitation is scarce in January, totaling only 30 mm (1.2 in) over just 4 days, making it a drier and more comfortable month. For more details on January conditions, you can check the following link: Ban Ko Lan weather in January.
September and February exhibit notable differences in weather patterns. September experiences warmer temperatures, with minimums around 25°C (78°F) and maximums peaking at 31°C (88°F). In contrast, February sees a slightly cooler minimum of 21°C (70°F) while reaching similar maximums of 31°C (89°F).
Precipitation is significant in September, totaling 235 mm (9.3 in) over 22 days, leading to a humid environment with humidity levels at 87%. Meanwhile, February is much drier, with only 17 mm (0.7 in) of rain across just 4 days, resulting in a more comfortable humidity level of 58%. For a closer look at February's weather, you can visit Ban Ko Lan weather in February.
September and March present contrasting weather patterns. September experiences higher humidity at 87%, with temperatures ranging from a minimum of 25°C to a maximum of 31°C, and significant precipitation of 235 mm spread over 22 days. In contrast, March boasts slightly warmer temperatures, with a low of 24°C and a high of 32°C, but features much lower rainfall of only 30 mm over just 5 days, resulting in a much drier atmosphere with humidity at 61%. For more detailed information about the weather in March, you can visit Ban Ko Lan weather in March.
September and April present distinct contrasts in weather conditions. In September, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with a high average of 28°C (83°F). This month sees significant rainfall, totaling 235 mm (9.3 in) over approximately 22 days, contributing to a high humidity level of 87%. Conversely, April exhibits slightly higher temperatures, with a minimum of 21°C (71°F) and a maximum of 33°C (91°F), averaging around 29°C (85°F). The precipitation is much lower at 85 mm (3.3 in) spread over about 10 days, accompanied by a more comfortable humidity level of 70%. For more insights into April weather, you can check Ban Ko Lan weather in April.
In comparing the weather of September and May, we can observe that both months offer warm temperatures, but May generally experiences slightly higher averages. September features a minimum temperature of 25°C (78°F) and maximum of 31°C (88°F), while May has a slightly lower minimum at 24°C (75°F) and a higher maximum of 33°C (92°F). Precipitation levels are notably higher in September, with 235 mm (9.3 in) across 22 days, compared to May’s 139 mm (5.5 in) over 16 days. The humidity is also slightly higher in September at 87%, versus 80% in May. For a more detailed look at the climate specifics, check out Ban Ko Lan weather in May.
In comparing the weather between September and June, we find that September tends to be slightly cooler, with average temperatures ranging from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), while June exhibits a snugger range from 26°C (80°F) to 32°C (89°F). Precipitation is significantly higher in September, recording 235 mm (9.3 in) over 22 days, in contrast to June's 87 mm (3.4 in) across 19 days. Humidity levels are comparable, with September at 87% and June at 85%. For more detailed information on June weather specifics, you can check out Ban Ko Lan weather in June.
When comparing the weather in September and July, September experiences slightly cooler temperatures with a minimum of 25°C (78°F) and an average of 28°C (83°F), while July has a minimum of 26°C (79°F) and an average of 29°C (84°F). July is generally drier, with only 111 mm (4.4 in) of precipitation over 21 days, compared to September's 235 mm (9.3 in) of rainfall spread over 22 days. Humidity levels remain fairly similar in both months, with September at 87% and July at 86%. Overall, September tends to be wetter and a bit cooler than July. For more specifics on July weather, you can check Ban Ko Lan weather in July.
In comparing the weather patterns of September and August, we observe that September tends to be slightly cooler, with minimum temperatures averaging around 25°C (78°F) compared to August's minimum of 26°C (79°F). Both months experience high humidity, but August has a marginally higher average at 88% compared to September's 87%. Precipitation in September is significantly increased, with 235 mm (9.3 in) spread over 22 days, contrasting sharply with August's 123 mm (4.8 in) over 20 days. For more detailed information about August weather, you can visit Ban Ko Lan weather in August.
In September, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with an average of 28°C (83°F). The month is characterized by significant rainfall, totaling 235 mm (9.3 inches) over 22 days, and a humidity level of 87%. In contrast, October maintains similar temperature ranges, with a minimum of 25°C (77°F), an average of 28°C (82°F), and a slightly higher maximum of 32°C (89°F). Precipitation drops slightly to 226 mm (8.9 inches) while still occurring on 22 days, and humidity decreases to 83%. For a detailed look at October weather patterns, visit Ban Ko Lan weather in October.
In September, the weather is characterized by warmer temperatures, with a minimum of 25°C and an average of 28°C, peaking at 31°C. The month is also marked by a high level of humidity at 87% and significant rainfall, totaling 235 mm over 22 days. In contrast, November features slightly cooler temperatures, with a minimum of 23°C and an average of 28°C, while the maximum reaches 32°C. Additionally, November enjoys much less rainfall, with only 65 mm falling over 12 days and humidity dropping to 78%. For more detailed insights on weather patterns, check Ban Ko Lan weather in November.
In September, the weather is characterized by higher temperatures and significant rainfall, with average temperatures around 28°C (83°F) and humidity levels reaching 87%. The month experiences frequent downpours, resulting in a total precipitation of 235 mm over 22 days. In contrast, December offers a more pleasant climate, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 31°C (89°F) and much lower precipitation of just 31 mm over 4 days. The humidity also decreases to 70%, making December a more comfortable month overall. For more details, you can explore Ban Ko Lan weather in December.
As September arrives on Ban Ko Lan, visitors can expect a shift in weather characterized by higher humidity and increased precipitation compared to other months. With temperatures averaging around 28°C, the island remains comfortably warm, although the rainfall intensifies, bringing a lush vibrancy to the landscape. This month is marked by 22 rainy days, making it a significant departure from the drier spells of the preceding months. Travelers should prepare for a blend of sun and showers, embracing the rich tropical atmosphere while exploring the island's beauty. For a more comprehensive understanding of what to expect, check out the complete Ban Ko Lan Climate.