Last updated: August 27, 2025
In Bang Pa-in, Thailand, September offers a tropical experience characterized by warm temperatures and significant rainfall. The maximum temperature can reach up to 37°C (98°F), while the average hovers around 29°C (84°F), providing a consistently warm atmosphere. However, with a minimum of 24°C (76°F), the nights remain relatively comfortable. September is particularly noted for its high humidity levels at 88%, contributing to a muggy sensation. Rain is frequent, with an impressive precipitation total of 279 mm (11.0 in) spread over 25 days, making it one of the wetter months of the year. Visitors should prepare for both the heat and the abundant showers during this vibrant season.
As September rolls into Bang Pa-in, Thailand, the weather remains warm and inviting, with minimum temperatures hovering around 24°C (76°F) and averages settling at about 29°C (84°F). The maximum temperature slightly declines to 37°C (98°F), hinting at the transition towards more bearable autumn conditions. Compared to the sweltering peak of summer months, September offers a subtle relief, yet maintains a tropical charm that shapes this picturesque region. With relatively stable temperatures, visitors can enjoy outdoor activities while being immersed in the lush scenery that thrives in the Thai tropical climate. Overall, September serves as a pivotal month where the heat begins to wane, inviting more exploration and adventure.
In September, Bang Pa-in experiences a significant surge in precipitation, with an impressive 279 mm (11.0 in) of rain falling over 25 days. This marks the peak of the monsoon season, reflecting a broader upward trend observed from May through September, where rainfall consistently increases, culminating in this month's robust totals. Compared to the preceding months, such as August and July, September sees an escalation not just in volume but also in the frequency of rainfall days, solidifying its status as one of the wettest months of the year. This dramatic uptick emphasizes the region's transition into its rainy season, suggested by earlier months’ upward trajectory from 100 mm in April to a staggering peak in September, ultimately impacting local ecosystems and agricultural practices.
As September arrives in Bang Pa-in, Thailand, humidity reaches a peak of 88%, marking one of the year's most humid months. This notable increase follows the prior trend of rising humidity levels from August's 85%, creating a sweltering atmosphere as the rainy season continues its grip on the region. The steady ascent from the dry months of January (50%) through to March (41%) clearly highlights the seasonal transition, culminating in the high humidity levels typical of late monsoon. As October approaches, humidity begins to recede to 79%, hinting at a gradual return to more comfortable conditions, but for now, September's moisture-laden air reigns supreme, embodying the essence of Thailand's tropical climate.
In September, Bang Pa-in, Thailand, experiences a UV Index of 13, classified as extreme, necessitating limited sun exposure with a burn time of just 10 minutes. This marks a consistent pattern seen throughout the year, where the region maintains a high to extreme UV Index from February to August and continues in September. The trend indicates that sunlight intensity remains significant as the months shift toward the end of the rainy season. With October showing only a slight decrease to an index of 12, it’s crucial for outdoor enthusiasts and residents alike to prioritize skin protection. For more detailed insights, visit the Bang Pa-in UV Index.
UV Risk Categories
In Bang Pa-in, Thailand, September experiences a decline in sunshine, totaling 268 hours—a gentle dip following the peak of the sunny months. As summer gives way to fall, this drop is part of a broader trend, with daylight hours gradually decreasing from the highs of March and April, which basked in over 330 hours of sunlight. Despite this reduction, September still offers a generous amount of sun, making it a viable time for outdoor activities and exploration. As the year progresses towards October, sunshine makes a modest recovery to 287 hours, hinting at a vibrant transition into the cooler months ahead. The rhythmic ebb and flow of daylight in Bang Pa-in paints a beautiful portrait of seasonal change, capturing the essence of both warmth and the approach of Thailand's lush, refreshing autumn.
In Bang Pa-in, Thailand, the likelihood of enjoying sunny weather in September is quite low, with only a 10% chance of sunshine. This marks a significant drop compared to the sunnier months earlier in the year, particularly February with its impressive 79% chance of clear skies. As the rainy season progresses, the trend reveals a consistent decline in sunny days from April onward, peaking in mid-year with the lowest probabilities in August and September. Consequently, travelers seeking bright blue skies may want to consider alternative months, as September tends to favor cloud cover and rainfall rather than sunlight.
In Bang Pa-in, Thailand, the month of September continues the trend of consistent daylight, offering approximately 12 hours of sunlight each day. This rhythm of daylight persists from March through August, highlighting a period of abundant brightness that transitions smoothly into the slightly shorter days of October. The contrast is notable when we look at the year as a whole, as both January and February provide just 11 hours of daylight, while the sunnier months stretch into the late rainy season. As the days gradually shorten towards the year's end, September stands as a vibrant month of light before the return to 11-hour days in the cooler months ahead.
As September arrives in Bang Pa-in, Thailand, the gentle breezes begin to signal a subtle change in the air. With an average wind speed of 2.0 m/s (4 mph), this month experiences a slight dip in wind activity compared to the preceding summer months, where winds peaked at 3.0 m/s (7 mph) in June. Despite this reduction, September maintains a pleasant atmosphere, reminiscent of the softer whispers of spring as the temperature slowly begins to ease. The trend highlights a gradual transition toward the cooler months, with wind speeds slowly tapering off towards October. This serene shift invites both residents and visitors alike to embrace the tranquil charm of Bang Pa-in during this picturesque time of year.
Weather in Bang Pa-in varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bang Pa-in, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns. In September, temperatures typically range from a minimum of 24°C (76°F) to a scorching maximum of 37°C (98°F), with an average temperature of 29°C (84°F). This month also sees significant precipitation, with 279 mm (11.0 in) spread over 25 days and humidity levels soaring at 88%. In stark contrast, January enjoys milder conditions, featuring temperatures that range from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), averaging 27°C (81°F). Rainfall is minimal during this month, totaling just 17 mm (0.7 in) over only 3 days, and the humidity drops to a more comfortable 50%. For more detailed insights, you can check Bang Pa-in weather in January.
September and February present notably contrasting weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 37°C (98°F), with an average of 29°C (84°F). The month sees high humidity levels at 88% and significant rainfall, totaling 279 mm (11.0 in) over 25 days. In stark contrast, February features milder temperatures, with a minimum of 18°C (65°F) and an average of 28°C (83°F), while still reaching a maximum of 37°C (98°F). However, February experiences a drastically lower precipitation level of just 12 mm (0.5 in) over only 3 days, accompanied by a much drier humidity of 47%. For specific details on February weather, you can check out Bang Pa-in weather in February.
In comparing the weather between September and March, we see distinct differences in both temperature and precipitation levels. September has a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), with maximum highs reaching 37°C (98°F). It is also characterized by high humidity at 88% and significant rainfall, totaling 279 mm (11.0 in) over 25 days. In contrast, March exhibits slightly cooler minimum temperatures at 23°C (73°F) and a higher average of 30°C (86°F), with maximum temperatures peaking at 39°C (102°F). The humidity in March drops considerably to 41%, and precipitation is much lower, at only 47 mm (1.8 in) over just 5 days. For more insights on the weather patterns specific to March, you can explore Bang Pa-in weather in March.
When comparing the weather in September and April, notable differences emerge. September experiences a warmer average temperature of 29°C (84°F), with a minimum of 24°C (76°F) and maximum highs reaching up to 37°C (98°F). In contrast, April boasts a higher average temperature of 31°C (87°F) but can peak at a scorching 40°C (104°F). Despite April's higher potential for warmth, it has significantly lower precipitation levels at 100 mm (4.0 in) over just 15 days, compared to September's hefty 279 mm (11.0 in) over 25 rainy days. Humidity also makes a stark contrast: September's humidity is at a high 88%, while April is more comfortable at 51%. For more details on the April weather specifics, visit Bang Pa-in weather in April.
September and May present distinct weather patterns, with September typically experiencing a slightly lower average temperature of 29°C (84°F) compared to May's average of 30°C (87°F). However, May can reach higher maximum temperatures, peaking at 40°C (104°F) versus September's maximum of 37°C (98°F). In terms of precipitation, September is significantly wetter, with 279 mm (11.0 in) of rain spread over 25 days, while May receives 166 mm (6.5 in) across 21 days. The humidity levels are also notably different, with September's humidity at a high 88%, compared to May's 76%. For more specific details on the weather conditions during May, you can check Bang Pa-in weather in May.
When comparing the weather in September and June, we notice that both months experience relatively high temperatures, but September tends to be slightly cooler overall. In June, the minimum temperature is 25°C, with an average of 30°C, peaking at 39°C, making it the warmer month. Conversely, September's temperatures range from a minimum of 24°C to a maximum of 37°C, with an average of 29°C. Rainfall also differs significantly, as September sees considerably more precipitation with 279 mm over 25 days, compared to June's 135 mm over 22 days. Additionally, September has higher humidity at 88%, compared to June's 83%. For more details on June weather specifics, you can visit Bang Pa-in weather in June.
When comparing the weather in September to that of July, we see some notable differences. September generally experiences slightly lower temperatures, with a minimum of 24°C (76°F) and a maximum of 37°C (98°F), while July's temperatures start a bit higher, with a minimum of 25°C (77°F) and a maximum of 38°C (101°F). Both months have similar average temperatures, around 29°C (84°F for September and 85°F for July). However, September is significantly wetter, with 279 mm (11.0 in) of precipitation over 25 days, compared to July's 179 mm (7.1 in) over 26 days Bang Pa-in weather in July. Additionally, September has a higher humidity level at 88%, compared to July's 80%, making it feel more humid and steamy.
In comparing the weather between September and August, both months exhibit similar minimum temperatures of 24°C (76°F), with average temperatures slightly varying—August averaging at 29°C (85°F) versus September's 29°C (84°F). Notably, September experiences slightly cooler maximum temperatures, peaking at 37°C (98°F), while August sees higher temperatures reaching 38°C (101°F). Precipitation also shows a marked increase in September, with 279 mm (11.0 in) over 25 days compared to August's 194 mm (7.6 in) across the same number of days, resulting in a higher humidity level of 88% in September over August's 85%. For more details on August weather in this region, check Bang Pa-in weather in August.
September and October exhibit similar temperature ranges, with both months averaging around 29°C (84°F) and reaching highs of 37°C (98°F in September and 99°F in October). However, September tends to be more humid, with an average humidity of 88%, compared to October's 79%. In terms of precipitation, September sees significantly more rain, with 279 mm (11.0 in) over 25 days, while October has 212 mm (8.4 in) of rain spread over just 19 days. For more specific details regarding October's weather, you can refer to Bang Pa-in weather in October.
In comparing the weather between September and November, we see a noticeable shift. September tends to be hotter, with average temperatures reaching 29°C (84°F) and maximums hitting 37°C (98°F), alongside a high humidity level of 88% and significant precipitation of 279 mm (11.0 in) over 25 days. In contrast, November offers a respite from the intense heat, with a slight drop in average temperature to 28°C (83°F) and maximums around 36°C (97°F). The humidity decreases to 68%, and the rainfall drops significantly to just 50 mm (2.0 in) over 8 days, making November a much drier month. For more specific details on the weather in November, you can visit Bang Pa-in weather in November.
September and December present a stark contrast in weather conditions. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 37°C (98°F), with an average of 29°C (84°F). This month is characterized by significant rainfall, totaling 279 mm (11.0 in) over 25 days, coupled with high humidity levels at 88%. In contrast, December boasts milder temperatures, with a minimum of 15°C (60°F) and a maximum of 36°C (97°F), averaging 27°C (81°F). Rainfall is minimal in December, with only 18 mm (0.7 in) across just 3 days, and the humidity drops to 59%. For a more detailed look at December's weather, you can visit Bang Pa-in weather in December.
As September arrives in Bang Pa-in, the weather transforms with heightened humidity and a significant increase in rainfall, contrasting sharply with the drier months. With an average temperature of around 29°C and the peak reaching up to 37°C, the heat remains palpable, but the consistent precipitation—often cascading for 25 days—creates a unique atmosphere that fills the air with vitality. This month stands out as one of the wettest, with 279 mm of rain refreshing the landscape and fostering lush greenery. For those looking to plan their visit, it’s essential to prepare for the unpredictable weather that characterizes September. Discover more about all the climatic nuances at Bang Pa-in Climate.