September Weather in Trang, Thailand

Last updated: August 27, 2025

In September, Trang, Thailand experiences a tropical climate characterized by warm temperatures and high humidity. With a maximum temperature reaching 34°C (93°F) and an average temperature of 27°C (81°F), visitors can expect a balmy atmosphere. However, the month also brings significant rainfall, totaling 264 mm (10.4 in) over approximately 25 days, making it one of the wettest times of the year. Humidity levels hover around a notable 84%, contributing to the overall heat and offering a lush environment that is both vibrant and invigorating. Whether exploring the lush landscapes or local culture, September in Trang promises an unmistakable sense of tropical vitality.

September Temperature in Trang

In September, Trang, Thailand experiences mild tropical temperatures that signal the transition from the rainy season to the cooler months ahead. With a minimum temperature of 24°C (75°F) and an average of 27°C (81°F), the city remains comfortably warm, perfect for exploring its lush landscapes. The maximum reaches 34°C (93°F), offering plenty of opportunities for sun-soaked adventures. Compared to the hotter months of April and May, September provides a slight respite from the peak heat, yet the humidity can still be a factor. As the region prepares to welcome October’s coolness, visitors can enjoy the picturesque scenery without the oppressive heat typical of earlier in the year.

September Weather in Trang: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Trang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trang, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec818283838282828181818181
Data source: Temperature data for Trang generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Trang

September in Trang, Thailand marks a significant point in the annual precipitation cycle, as it receives 264 mm (10.4 in) of rainfall over 25 days. This makes it a tantalizingly wet month, a natural progression from the heavy downpours of August, which recorded 224 mm. The consistent increase in precipitation from April onward highlights the region's transition into the heart of its rainy season, peaking just before October's even heavier 338 mm. Such abundant rainfall not only nourishes the lush landscapes but also contributes to the vibrant ecosystem that characterizes the area, embracing the rhythm of Thailand's tropical climate. As we flow into October, the trend shows no signs of abating, keeping the region lush and vibrant.

September Precipitation Trends in Trang

The chart displays monthly precipitation patterns in Trang, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Trang, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1021242181274215190224264338285147
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Trang

In September, Trang, Thailand experiences a noticeable rise in humidity, peaking at 84%. This elevation marks a shift from the preceding months, where humidity levels gradually increased from 79% in June and July to 82% in August. The consistent upward trend highlights the onset of the wet season, as September continues the trend established in August with heightened moisture in the air. The humidity remains high in the months that follow, suggesting that this time of year is characterized by a lush and moist environment, setting the tone for the tropical climate that envelops the region.

September Average Humidity in Trang

This chart illustrates the average monthly humidity levels in Trang, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Trang is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%73%74%71%72%79%79%82%84%83%84%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Trang

As September rolls in Trang, Thailand, residents and visitors alike should prepare for another month of extreme UV exposure, with the UV Index remaining steady at 14. This indicates that 10 minutes of unprotected sun exposure can quickly lead to sunburn. Notably, the UV Index has remained consistently high throughout the year, peaking in March at 16 and gradually settling around 14 in the latter months. This trend reflects the importance of sun safety year-round in this tropical paradise, where the sun’s rays are both potent and relentless. For more information on UV safety, check out Trang UV Index.

Maximum UV Index Levels in Trang for September

The chart shows the monthly maximum UV Index (UVI) for Trang in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Trang typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121416151413131414141211
Data source: Trang September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Trang

September in Trang, Thailand, brings a delightful average of 294 sunshine hours, offering a warm and inviting atmosphere as the rainy season winds down. While slightly less sunny than the peak months of March and July, which bask in over 340 hours of sunshine, September still provides ample daylight for outdoor adventures and exploration. The month transitions gracefully from the lively summer, reflecting a gradual shift in weather as it aligns with the cooler October, which sees a dip to 279 hours. This blend of sunshine and inviting temperatures makes September a charming time to experience the natural beauty and vibrant culture of Trang.

Monthly Sunshine Duration in Trang: September Highlighted

The September sunshine duration represents the total number of hours Trang experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec250h309h344h309h308h301h324h318h294h279h262h291h
Data source: Trang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Trang During September

When considering the likelihood of sunny weather in September in Trang, Thailand, it's essential to note a significant trend in the data reflecting the region's seasonal patterns. As the rainy season approaches, September sees the chance of sun plummet to a mere 6%, marking it as one of the least favorable months for sun-seekers. This trend is part of a larger narrative of decreasing sunshine, as the warmer months from January to April boast higher probabilities of clear skies, ranging from 22% to 47%. However, post-April, the sunshine odds dwindle, with September and the following months like October and November consistently recording lower figures. Travelers should prepare for a high likelihood of rain rather than basking under the sun during this month.

Percentage of Sunny Days in September in Trang

The chart illustrates the percentage of sunny days in Trang throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Trang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%47%39%23%13%23%16%12%6%8%4%30%
Data source: Trang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Trang in September

In Trang, Thailand, September marks a continuation of the vibrant daylight typical of the region, where daylight duration reaches a notable 12 hours. This delightful consistency in daylight begins in March and persists through the summer months, reflecting the tropical climate that bathes the area in warm sunshine. As September unfolds, residents and visitors alike enjoy the balance of day and night, before the daylight begins to taper off in October, settling back to 11 hours as the year transitions into its cooler months. This trend highlights the stable and predictable patterns of daylight in Trang, making it an appealing destination for those who relish the sun.

Average Daylight Hours in Trang for September

The chart illustrates the variation in daylight duration in Trang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 43m11h 52m12h 4m12h 16m12h 27m12h 32m12h 29m12h 20m12h 8m11h 56m11h 45m11h 40m
Data source: Trang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Trang

As September rolls into Trang, Thailand, the gentle embrace of the September wind offers a refreshing sigh after the summer heat, with average wind speeds reaching 1.9 m/s (4 mph). This subtle breeze is part of a larger trend that sees the winds gradually tapering off from the summer months, where speeds hovered around 2.2 m/s (5 mph) in August. Notably, these lower September winds signal a transition towards the calmer conditions often found as the year winds down, dipping even lower in the coming months. As the year progresses, the winds will fluctuate slightly, becoming brisker in December, but for now, September invites residents and visitors alike to enjoy its serene yet invigorating atmosphere, perfect for outdoor exploration amidst the lush landscapes.

Average September Wind Speed in Trang

The chart displays monthly wind speed patterns in Trang, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.02.31.71.71.92.22.21.9 m/s2.01.72.7
Data source: Trang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Trang Compares to Other Months

Weather in Trang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Trang, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather is typically quite warm and humid, with average temperatures around 27°C (81°F) and maximums reaching up to 34°C (93°F). The month sees significant rainfall, totaling 264 mm (10.4 in) across 25 days, resulting in a high humidity level of 84%. In contrast, January offers slightly cooler conditions, with minimum temperatures of 22°C (71°F) and maximums peaking at 35°C (96°F), while still averaging 27°C (81°F). However, it experiences much less precipitation, with only 102 mm (4.0 in) falling over just 9 days and a humidity level of 76%. For a more detailed look at January weather, you can check Trang weather in January.

September weather in Trang is characterized by higher humidity and significant rainfall, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (93°F). This month experiences around 264 mm (10.4 in) of precipitation over approximately 25 days, making it one of the wetter months of the year. In contrast, February typically boasts drier and warmer conditions, where temperatures range from a minimum of 21°C (69°F) to a maximum of 36°C (97°F). With only about 12 mm (0.5 in) of rain over 2 days and humidity at 73%, February offers a much more comfortable climate for outdoor activities. For more detailed information, you can visit Trang weather in February.

In September, the weather is characterized by higher humidity and frequent rainfall, with an average temperature of 27°C (81°F) and total precipitation reaching 264 mm (10.4 in) over 25 days. In contrast, March experiences warmer temperatures, peaking at 36°C (98°F), but significantly less rain, with only 42 mm (1.6 in) over 8 days, leading to a drier and less humid climate at 74%. This makes March feel more comfortable overall compared to the wet and humid conditions of September. For more details, you can check Trang weather in March.

In September, the weather is characterized by a warm average temperature of 27°C (81°F), with maximum highs reaching up to 34°C (93°F). This month also sees significant rainfall, averaging 264 mm (10.4 in) over 25 days, accompanied by high humidity levels at 84%. In contrast, April experiences a slightly higher average temperature of 28°C (83°F) and can get much warmer, with maximum temperatures soaring to 37°C (98°F). However, it receives less rainfall overall, totaling 180 mm (7.1 in) across 21 days, and boasts lower humidity at 71%. For a detailed look at April weather, you can visit Trang weather in April.

In comparing the weather of September and May, both months exhibit warm conditions with minimal temperature variations. September features a minimum temperature of 24°C (75°F) and an average of 27°C (81°F), peaking at 34°C (93°F). In contrast, May has a slightly higher average temperature of 28°C (83°F) and a maximum of 35°C (95°F). Both months experience significant rainfall, with September receiving 264 mm (10.4 in) over 25 days, while May has even more at 274 mm (10.8 in) over 28 days. Notably, September's humidity level is higher at 84%, compared to May's 72%. For more details on May weather, check out Trang weather in May.

In comparing the weather of September and June, both months exhibit similar temperature ranges, with minimums at 24°C (75°F) and maximums reaching 34°C (93°F). However, September tends to be slightly wetter, receiving 264 mm (10.4 in) of precipitation over 25 days, whereas June has a bit less rain, at 214 mm (8.4 in) over 24 days. Additionally, September has higher humidity levels at 84%, compared to June's 79%. For more detailed information, you can visit Trang weather in June.

In September, the weather is characterized by slightly warmer temperatures, with an average of 27°C (81°F) compared to July's average of 28°C (82°F). However, September sees more precipitation, totaling 264 mm (10.4 in) over 25 days, compared to July's 190 mm (7.5 in) over 20 days. Additionally, humidity levels are higher in September at 84%, while July has a humidity of 79%. This makes September feel more humid and wetter overall. For more details on July weather, check out Trang weather in July.

In comparing the weather between September and August, we see some notable similarities and differences. Both months maintain an average temperature of 27°C (81°F), but September tends to be slightly warmer with a maximum temperature reaching up to 34°C (93°F) compared to August's 33°C (92°F). Precipitation levels are higher in September, with 264 mm (10.4 in) recorded over 25 days, compared to August's 224 mm (8.8 in) over 24 days. Additionally, September exhibits slightly higher humidity levels at 84%, just above August's 82%. For further details on August weather, you can check Trang weather in August.

In September, the weather remains quite warm with average temperatures around 27°C (81°F) and maximum highs of 34°C (93°F). However, this month also sees high levels of precipitation, totaling 264 mm (10.4 in) over 25 days, contributing to a humid atmosphere with an average humidity of 84%.

In contrast, October experiences a slight increase in maximum temperatures, reaching up to 35°C (94°F), while the average remains at 27°C (81°F). Rainfall increases as well, with October recording 338 mm (13.3 in) of precipitation over 27 days, resulting in a similarly humid environment, albeit slightly less humid at 83%. For more details, check out Trang weather in October.

September and November in Trang share similar temperature ranges, with September recording a minimum of 24°C (75°F), an average of 27°C (81°F), and a maximum of 34°C (93°F), while November features a slightly lower minimum of 23°C (74°F) and the same average and maximum temperatures. However, November tends to be wetter, with precipitation increasing to 285 mm (11.2 in) over 26 days, compared to September's 264 mm (10.4 in) across 25 days. Both months exhibit high humidity levels of 84%, contributing to a muggy atmosphere typical of tropical climates. For more details on November weather, check out Trang weather in November.

In comparing the weather of September and December, both months share similar average temperatures, ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F) and an average of 27°C (81°F). However, September experiences notably higher precipitation, with 264 mm (10.4 in) over 25 rainy days, while December sees a significant reduction in rainfall to 147 mm (5.8 in) across just 15 days. Despite this change in precipitation, the humidity remains consistent at 84% in both months, creating a similarly muggy atmosphere. For a detailed look at December's weather, you can check Trang weather in December.

Compare Trang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Trang

As September unfolds in Trang, it brings a notable shift in weather patterns compared to the other months. The increased humidity at 84% creates a muggy atmosphere, complemented by frequent rainfall, with 25 days of precipitation contributing to a total of 264 mm. While temperatures remain warm, averaging around 27°C, it's the heightened chance of rain that sets September apart, making it a key time for lush landscapes and vibrant greenery. For a deeper dive into Trang’s weather intricacies, be sure to check out the complete details at Trang Climate.