Last updated: August 27, 2025
In Chon Buri, Thailand, September ushers in a tropical climate characterized by warm temperatures and substantial rainfall. With a maximum temperature reaching 35°C (95°F) and an average of 28°C (83°F), the month maintains a humid environment, with humidity levels around 87%. Rainfall is significant, averaging 262 mm (10.3 in) over 25 days, creating a lush and vibrant landscape. As the rainy season peaks, visitors can expect frequent showers interspersed with sunny spells, making it a unique time to experience the region's natural beauty.
In September, Chon Buri, Thailand, experiences warm and humid weather, typical of the transition into the rainy season. With minimum temperatures around 24°C (76°F) and average highs reaching 35°C (95°F), the climate remains comfortable yet sticky. The average temperature settles at 28°C (83°F), slightly lower than the peak summer months, reflecting a gradual cooling trend as the year progresses. Interestingly, while both the minimum and maximum temperatures show consistency with the preceding months, September hints at the start of a shift toward cooler temperatures, setting the stage for more pleasant days ahead in October.
September in Chon Buri, Thailand, is marked by significant rainfall, with precipitation peaking at 262 mm (10.3 in), making it the wettest month of the year. The 25 rainy days during this period highlight a trend of consistent and frequent downpours, as the region transitions from its mid-year monsoon. This surge in rainfall is a stark contrast to the drier months earlier in the year, such as January and February, each receiving only 27 mm (1.1 in) of rain across a handful of days. The increase in precipitation from August to September illustrates the height of Chon Buri's wet season, setting the stage for the still-abundant rainfall expected in October. Overall, September's deluge is a defining characteristic of the season, significantly shaping the region's climate and environment.
In September, Chon Buri experiences a humidity level of 87%, marking a slight decrease from the peak of 88% in August. This trend reflects a typical pattern as the region transitions from the sweltering summer months into the slightly cooler fall. The humidity steadily rises from a modest 59% in January, reaching its annual high in the mid-summer months of June and July, where it hovers around 85% - 86%. As the year progresses into autumn, humidity begins to wane, dropping to 83% by October and further declining to 78% in November. This consistent fluctuation highlights the tropical climate of Chon Buri, where high humidity is a defining characteristic of the warmer months.
In September, Chon Buri, Thailand, continues to grapple with an extreme UV Index of 13, demanding caution for outdoor enthusiasts. This level of UV exposure means that a mere 10 minutes of unprotected sun exposure can lead to sunburn. Following a summer of consistently high readings, with a peak of 14 in August, September marks a slight decrease but remains perilously close to the peak levels observed throughout the summer months. As the year transitions towards its latter stages, the UV index gradually stabilizes, with October also reflecting a 13 rating. To navigate the bright Thai sun safely, it's crucial to stay informed and protected. For detailed UV Index information, visit Chon Buri UV Index.
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September in Chon Buri, Thailand, offers a delightful retreat with 267 hours of sunshine, marking a subtle dip from the vibrant peak of summer. As the rainy season approaches, this month still boasts a generous amount of sunlight, outshining the heat of July and August, which both confirmed 287 hours. While daylight hours begin to wane as autumn nears, September still presents ample opportunities to bask in the warm rays, setting the stage for a transitional period that hints at the promise of clearer skies and sunnier days ahead in October with 284 hours. The trend reveals a gentle ebb and flow of sunshine throughout the year, making Chon Buri a charming destination for sun-seekers even as the seasons shift.
September in Chon Buri, Thailand, tends to lean towards the cloudy side, with only a 9% chance of sunny weather. This marks one of the lowest probabilities for sunshine throughout the year, following the pattern established in the rainy months of August and July, which also see minimal sunlight. As the region transitions from the heavy monsoon season, the likelihood of clear, blue skies remains bleak, contrasting sharply with the sunnier months of January and February, where the chances soar to 57% and 71% respectively. If you’re planning a visit in September, it might be wise to prepare for a mix of clouds and occasional rain rather than basking in the sun.
In September, Chon Buri enjoys a consistent 12 hours of daylight, mirroring the extended sunlight typical of the previous four months. This trend highlights a pleasant stability in day length, with daylight peaking in the spring and summer months of March through August, before gradually tapering off to 11 hours in October. This rhythmic pattern offers a wonderful balance for residents and visitors alike, fostering an inviting atmosphere for outdoor activities throughout the month. As the year progresses, the return to shorter days serves as a gentle reminder of the changing seasons, creating a captivating backdrop for life in this vibrant coastal city.
In September, Chon Buri, Thailand, experiences a gentle breeze with an average wind speed of 2.1 m/s (5 mph), marking a slight decline from the summer months. This decrease follows a pattern observed in prior months, where wind speeds tend to dip after the more robust gusts of June and July. The pleasant, softer winds of September create an inviting atmosphere, perfect for leisurely beach strolls and enjoying the tropical surroundings. As the year transitions into autumn, the wind remains moderate, promising comfortable conditions that blend seamlessly with the region’s vibrant scenic beauty.
Weather in Chon Buri varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Chon Buri, focusing on differences in temperature, rainfall, humidity, and UV levels.
September weather in Chon Buri is characterized by higher temperatures and significant rainfall, with average daily temperatures around 28°C (83°F) and peak conditions reaching up to 35°C (95°F). The month sees frequent precipitation on 25 days, accumulating to 262 mm (10.3 in), accompanied by high humidity levels of 87%. In contrast, January offers a more pleasant and drier climate, with minimum temperatures of 17°C (62°F) and an average of 27°C (81°F). The month experiences only 4 days of rainfall, totaling 27 mm (1.1 in), and lower humidity at 59%. For a detailed look at January's weather, you can check this link: Chon Buri weather in January.
September and February in Chon Buri showcase distinct weather patterns. In September, temperatures are generally warmer with minimums around 24°C (76°F) and maximums reaching up to 35°C (95°F), accompanied by high humidity levels of 87%. This month also experiences significant rainfall, totaling 262 mm (10.3 in) over about 25 days. In contrast, February tends to be milder, with minimum temperatures dropping to 19°C (66°F), while still averaging 28°C (82°F) and peaking at 35°C (95°F). The precipitation dramatically decreases to just 27 mm (1.1 in) over only 5 days, and humidity falls to a more comfortable 58%. For more detailed information on February weather, check Chon Buri weather in February.
In comparing the weather of September and March, one can see notable differences in temperature and precipitation patterns. September experiences slightly higher average and maximum temperatures, with averages around 28°C (83°F) and highs reaching up to 35°C (95°F). However, it also brings significantly more rainfall, with precipitation totaling 262 mm (10.3 in) over 25 days and a high humidity of 87%. In contrast, March features a similar minimum temperature of 22°C (72°F) but an average of 29°C (85°F) and a maximum reaching 36°C (97°F). The month is considerably drier, with only 60 mm (2.4 in) of rain over 11 days and a lower humidity level of 61%. For more detailed weather insights, you can check Chon Buri weather in March.
When comparing the weather in September and April, we see notable differences in temperature and precipitation. September experiences average temperatures around 28°C (83°F), with a maximum of 35°C (95°F) and a high humidity level of 87%. It also sees substantial rainfall, accumulating 262 mm (10.3 in) over about 25 days. In contrast, April boasts a slightly higher average temperature of 29°C (85°F) and can reach peaks of 37°C (99°F), but it has significantly less rainfall at 122 mm (4.8 in) spread over 18 days, accompanied by a lower humidity of 70%. For more detailed insights, you can refer to Chon Buri weather in April.
September's weather features slightly higher average humidity at 87% compared to May's 80%. While both months experience warm temperatures, September typically sees a lower average maximum of 35°C (95°F), in contrast to May's peak of 37°C (99°F). September is also characterized by more rainfall, with 262 mm (10.3 in) spread over 25 days, whereas May has 166 mm (6.5 in) over 22 days. For more detailed insights on the weather conditions during May, you can refer to Chon Buri weather in May.
In comparing the weather of September and June, we see that both months feature similar temperature ranges, with September having a slightly lower minimum temperature of 24°C (76°F) compared to June's 25°C (77°F). The average temperature in September is 28°C (83°F), while June averages at 30°C (86°F). Notably, September experiences significantly higher precipitation, with 262 mm (10.3 in) over 25 days, compared to June’s 109 mm (4.3 in) across 22 days. Humidity levels are also comparable, with September at 87% and June at 85%. For more detailed insights, check out Chon Buri weather in June.
When comparing the weather in September to July, September tends to be slightly cooler with an average temperature of 28°C (83°F) compared to July's 29°C (85°F). While both months experience high temperatures, July can reach a maximum of 36°C (97°F), just above September's maximum of 35°C (95°F). Notably, September sees significantly more precipitation, totaling 262 mm (10.3 in) across 25 days, while July's rainfall is lower at 168 mm (6.6 in) over the same number of days. Humidity levels are quite similar in both months, with September at 87% and July at 86%. For more details on July weather, visit Chon Buri weather in July.
In comparing the weather patterns of September and August, September sees a slight drop in average temperature, resting at 28°C (83°F), compared to August’s warmer average of 29°C (84°F). Both months experience similar maximum temperatures of around 35°C (95°F), but September is characterized by significantly higher precipitation, totaling 262 mm (10.3 in) over 25 days, compared to August's 160 mm (6.3 in) over 24 days. Interestingly, humidity levels remain fairly consistent between the two months, with September at 87% and August at 88%. For a more detailed look at August weather, you can check Chon Buri weather in August.
In comparing the weather between September and October, September tends to be slightly more humid, with an average humidity of 87% compared to October's 83%. Both months share similar average temperatures, with September having a minimum of 24°C (76°F) and a maximum of 35°C (95°F), while October shows a minimum of 23°C (74°F) and a slightly higher maximum of 36°C (96°F). Precipitation levels are also notable, as September sees more rain with 262 mm (10.3 in) over 25 days, whereas October experiences 228 mm (9.0 in) across 23 days. For more detailed information, you can check the link: Chon Buri weather in October.
In comparing September and November weather, September tends to be warmer and much wetter. With average temperatures hovering around 28°C (83°F) but reaching highs of 35°C (95°F), the humidity is notably high at 87%. Additionally, September experiences significant rainfall, accumulating 262 mm (10.3 in) over 25 days. In contrast, November maintains the same average temperature of 28°C (83°F) and also peaks at a high of 35°C (96°F), but the climate is much drier, with only 59 mm (2.3 in) of precipitation over 10 days and lower humidity at 78%. For more details about November weather specifically, you can check Chon Buri weather in November.
In September, the weather is characterized by high humidity at 87% and frequent rain, with an average temperature of 28°C (83°F) and substantial precipitation of 262 mm over 25 days. This makes September feel quite muggy and damp. In contrast, December offers a much more pleasant climate, with lower humidity at 70% and only 28 mm of rain falling over just 3 days. The temperatures remain warm, averaging 27°C (81°F), but with a notable drop in the minimum temperature to 16°C (61°F), making December a more comfortable month overall. For more details, you can check Chon Buri weather in December.
September in Chon Buri is characterized by warm temperatures and significant rainfall, making it distinctly different from other months. The average temperature hovers around a balmy 28°C (83°F), with highs reaching up to 35°C (95°F), but it's the heavy precipitation—a staggering 262 mm (10.3 in) over 25 days—that truly sets it apart. Humidity peaks at an average of 87%, creating a tropical environment that can feel quite oppressive. If you're planning a visit during this month, come prepared for the showers that frequently grace this coastal area. For more insights into how the weather evolves throughout the year, check out Chon Buri Climate.