September Weather in Suan Luang, Thailand

Last updated: August 27, 2025

In September, Suan Luang, Thailand experiences a warm and humid climate, with average temperatures hovering around 29°C (84°F). The peak temperature can reach a scorching 35°C (96°F), while the night brings a cooler dip to 24°C (76°F). This month is characterized by significant rainfall, totaling 266 mm (10.5 in) over approximately 26 days, resulting in an average humidity level of 87%. The combination of high temperatures and frequent showers creates a lush, vibrant environment, making September a unique time to explore the natural beauty of Suan Luang.

September Temperature in Suan Luang

In Suan Luang, Thailand, September marks a transitional phase in temperatures, as the lingering warmth of summer starts to ease. With a minimum temperature of 24°C (76°F) and a maximum reaching 35°C (96°F), the month maintains a comfortable average of 29°C (84°F). Compared to the sweltering highs seen from April through August, where temperatures often flirt with 37°C (99°F) and beyond, September provides a much-needed reprieve. As the rainy season progresses, the humidity may increase, but the overall drop in peak temperatures suggests a subtle shift towards cooler days. Embracing this brief respite, visitors can enjoy the blend of warm sun and occasional rain, making it an opportune time to explore the vibrant outdoor culture of the region.

September Weather in Suan Luang: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Suan Luang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suan Luang, 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).
JanFebMarAprMayJunJulAugSepOctNovDec808285868686858484838280
Data source: Temperature data for Suan Luang generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Suan Luang

September marks a significant peak in precipitation for Suan Luang, Thailand, with 266 mm (10.5 in) of rainfall recorded over 26 days. This month stands out as the wettest of the year, surpassing the heavy rains of both July and August. As the monsoon reaches its height, daily downpours become more frequent, creating a lush and vibrant environment. This surge in precipitation not only replenishes the local ecosystem but also signals a transition toward the latter half of the rainy season. While October follows with substantial rainfall too, September’s relentless showers underscore a dramatic climax in the annual weather pattern, showcasing the intensity of the tropical climate in this region.

September Precipitation Trends in Suan Luang

The chart displays monthly precipitation patterns in Suan Luang, 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 Suan Luang, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3220481181551191851792662265125
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Suan Luang

September in Suan Luang, Thailand, welcomes a modest decrease in humidity, settling at 87% after the peak summer months. This marks a slight drop from August's sweltering 88%, yet it remains indicative of the region's tropical climate, where humidity consistently runs high. The pattern of rising moisture from the cooler January averages of 59% to the summer's peak in June at 85% reveals a clear natural progression towards more humid conditions. As the year transitions into the dry season, October promises some respite with humidity dipping to 83%, hinting at the ebb and flow of Thailand's distinctive weather. Overall, September ties together the summer heat and the forthcoming relief, embodying the essence of Suan Luang's tropical allure.

September Average Humidity in Suan Luang

This chart illustrates the average monthly humidity levels in Suan Luang, 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 Suan Luang is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%58%61%70%80%85%86%88%87%83%78%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Suan Luang

September in Suan Luang, Thailand, sees the UV Index remain consistently high at 13, classifying it in the extreme exposure category with a burn time of just 10 minutes. This trend reflects the ongoing intensity of the sun as summer transitions to monsoon, emphasizing the need for sun protection measures. Notably, September’s UV Index is slightly lower than the peak in August (14), but it still necessitates caution. This month, like much of the preceding summer, demands vigilance against harmful UV rays, reminding residents and visitors alike to stay informed and protected. For more insights, check the Suan Luang UV Index.

Maximum UV Index Levels in Suan Luang for September

The chart shows the monthly maximum UV Index (UVI) for Suan Luang 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 Suan Luang typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121413141313141312109
Data source: Suan Luang 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 Suan Luang

As September rolls in, Suan Luang, Thailand, experiences a subtle transition in its sunshine hours, with 263 hours of bright exposure. This marks a decline from the vibrant summer months, reflecting the region's shift towards the cooler and slightly cloudier days of early autumn. While the hours remain generous compared to other months, it’s evident that the peak sunshine trend has waned since March, which boasts a splendid 334 hours. Interestingly, September bears a closer resemblance to the overcast summer months of July and August than to the sun-drenched days of April and May. As the year progresses, the sun continues to play hide and seek, yet Suan Luang remains a radiant locale, inviting visitors to bask in its warm embrace.

Monthly Sunshine Duration in Suan Luang: September Highlighted

The September sunshine duration represents the total number of hours Suan Luang 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.
JanFebMarAprMayJunJulAugSepOctNovDec253h298h334h318h320h299h284h280h263h285h299h316h
Data source: Suan Luang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Suan Luang During September

In Suan Luang, Thailand, the likelihood of sunny weather in September is notably low, with a mere 10% chance of sunshine. This trend fits into the broader pattern of decreasing sun exposure as the year progresses, peaking in the cooler months of January and February with chances of 58% and 74%, respectively. Following these months, the probability of sunny days sharply declines, hitting its lowest point during the rainy season from April to August, where sunshine dips to single digits. While October does see a slight uptick to 14%, September stands out as one of the gloomiest months, suggesting that visitors should prepare for overcast skies and rainy spells during this time.

Percentage of Sunny Days in September in Suan Luang

The chart illustrates the percentage of sunny days in Suan Luang 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 Suan Luang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%74%54%17%33%17%11%9%10%14%29%63%
Data source: Suan Luang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Suan Luang in September

In Suan Luang, Thailand, September marks a shift in the seasonal rhythm of daylight, as the city enjoys 12 hours of sunlight—a continuation of the consistent daylight patterns seen since March. This period of equal daylight carries on from the mid-year months, reflecting a stable climate that caters to outdoor enthusiasts and nature lovers alike. As the days shorten slightly in October, the gradual transition begins, but September stands out as a time when sunlight is plentiful and evenings are warm, offering ample opportunity to bask in the beauty of this vibrant region before the shorter days of the later months set in.

Average Daylight Hours in Suan Luang for September

The chart illustrates the variation in daylight duration in Suan Luang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 40m12h 2m12h 25m12h 45m12h 54m12h 49m12h 33m12h 11m11h 48m11h 28m11h 19m
Data source: Suan Luang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Suan Luang

In September, Suan Luang experiences a gentle breeze with an average wind speed of 2.0 m/s (5 mph), a slight dip from the summer months. This reduction follows a broader trend observed from June to August, where wind speeds peaked at 3.0 m/s (7 mph) and gradually softened as the seasons shifted. The transition into fall brings a more mellow atmosphere, reminiscent of the serene calm that characterizes this time of year in Thailand. Interestingly, September’s winds mirror those of both October and November, suggesting a consistent breeze that accompanies the onset of the latter months, providing a soothing backdrop for outdoor activities and relaxation in this lush setting.

Average September Wind Speed in Suan Luang

The chart displays monthly wind speed patterns in Suan Luang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.32.81.92.33.02.82.62.0 m/s2.02.22.5
Data source: Suan Luang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Suan Luang Compares to Other Months

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

In September, the weather is significantly warmer and more humid, with average temperatures ranging from 24°C (76°F) to a high of 35°C (96°F). The month is also quite rainy, receiving 266 mm (10.5 inches) of precipitation over 26 days, resulting in a humidity level of 87%. In contrast, January offers a much more temperate climate, with minimum temperatures of 15°C (60°F) and a comfortable average of 27°C (81°F). Rainfall is minimal at just 32 mm (1.3 inches) over only 4 days, and humidity drops to 59%, creating a much drier atmosphere. For more details on January weather, you can visit Suan Luang weather in January.

The weather in September is significantly warmer and more humid than in February. With average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 35°C (96°F) and an average precipitation of 266 mm (10.5 in) over 26 days, September is quite wet and sticky, boasting high humidity levels of 87%. In contrast, February offers a more comfortable climate, with slightly lower temperatures ranging from a minimum of 19°C (66°F) to a maximum of 35°C (95°F) and only 20 mm (0.8 in) of precipitation over just 5 days. This leads to a much lower humidity of 58%, making February a drier and more pleasant month overall. For more detailed insights into February's weather, you can check Suan Luang weather in February.

September and March exhibit distinct weather characteristics. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 35°C (96°F), with an average of 29°C (84°F). This month is also notably wet, receiving 266 mm (10.5 in) of precipitation over 26 days and high humidity levels at 87%. In contrast, March features slightly cooler minimum temperatures at 22°C (72°F) and a higher maximum of 36°C (98°F), with an average temperature nearly identical to September's at 29°C (85°F). However, March is much drier, experiencing only 48 mm (1.9 in) of rain across just 8 days, and considerably lower humidity at 61%. For more detailed insights into March's weather, you can visit Suan Luang weather in March.

When comparing the weather in September and April, it is evident that both months experience warm temperatures, but with some notable differences. September has a slightly higher minimum temperature of 24°C (76°F) and a maximum of 35°C (96°F), contributing to an average of 29°C (84°F). Additionally, September is marked by significantly higher rainfall, totaling 266 mm (10.5 in) over 26 days, along with higher humidity levels at 87%. In contrast, April boasts a warm average of 30°C (86°F), with maximum temperatures soaring up to 37°C (99°F). The precipitation in April is much lower at 118 mm (4.7 in) over 14 days, and the humidity is relatively comfortable at 70%. For more specific details about April weather, you can visit Suan Luang weather in April.

September and May present distinct weather patterns, with September typically featuring slightly cooler averages and higher humidity. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 35°C (96°F), with an average of 29°C (84°F) and significant rainfall of 266 mm (10.5 in) over 26 days. In contrast, May boasts a higher maximum temperature of 38°C (101°F) and averages 30°C (86°F), but it experiences less precipitation at 155 mm (6.1 in) over 22 days. The humidity levels are also slightly elevated in September at 87%, compared to 80% in May. For more detailed weather insights, you can check Suan Luang weather in May.

When comparing the weather in September and June, we see that both months experience warm temperatures, with June having slightly higher averages. September boasts a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), while June’s temperatures range from a minimum of 25°C (78°F) to an average of 30°C (86°F). Additionally, June reaches a maximum of 36°C (97°F), compared to September’s maximum of 35°C (96°F). Precipitation is notably higher in September, with 266 mm (10.5 in) spread over 26 days, while June experiences only 119 mm (4.7 in) over 22 days. Humidity levels are quite similar, resting at 87% for September and 85% for June. For a closer look at what the weather is like during June, you can check Suan Luang weather in June.

In comparing the weather between September and July, both months exhibit warm temperatures with July slightly warmer overall. September features a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), while July has a minimum of 25°C (78°F) and also an average of 29°C (85°F). The maximum temperature in July reaches up to 36°C (98°F), compared to September's peak of 35°C (96°F). Interestingly, September experiences higher precipitation with 266 mm (10.5 in) over 26 days, compared to July's 185 mm (7.3 in) over 27 days. Humidity levels are quite similar, at 87% for September and 86% for July, creating a consistently muggy atmosphere. For more details on July weather in this region, you can refer to Suan Luang weather in July.

In comparing the weather of September and August, we see that both months feature similar average temperatures, with September averaging 29°C (84°F) and August slightly higher at 29°C (85°F). However, September brings a notable increase in precipitation, with 266 mm (10.5 in) falling over 26 days, compared to August's 178 mm (7.0 in) across 25 days. Additionally, September has a slightly lower maximum temperature of 35°C (96°F) compared to August's peak of 36°C (98°F). Humidity levels remain high in both months, with August at 88% and September at 87%. For a more detailed overview, check out Suan Luang weather in August.

In September, the weather is characterized by higher temperatures and increased humidity, with a minimum of 24°C (76°F) and an average of 29°C (84°F), reaching a maximum of 35°C (96°F). The month also sees significant rainfall, accumulating 266 mm (10.5 in) over 26 days, resulting in a humidity level of 87%. In contrast, October offers slightly cooler temperatures, with a minimum of 23°C (73°F) and an average of 28°C (83°F), while still peaking at 35°C (95°F). Precipitation decreases to 226 mm (8.9 in) over 21 days, and humidity drops to 83%. For more detailed weather information, you can check Suan Luang weather in October.

In September, the weather is markedly warmer and more humid, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 35°C (96°F) and an average of 29°C (84°F). The month is also characterized by significant rainfall, receiving 266 mm (10.5 in) over 26 days, resulting in a humidity level of 87%. In contrast, November brings slightly cooler temperatures, with a minimum of 21°C (70°F) and an average of 28°C (83°F), while still peaking at 35°C (96°F). The precipitation drops significantly to 51 mm (2.0 in) across just 9 days, and humidity eases to 78%. For more details on the weather in November, visit Suan Luang weather in November.

September and December present stark contrasts in weather conditions. In September, temperatures typically range from a minimum of 24°C (76°F) to a maximum of 35°C (96°F), with an average of 29°C (84°F). This month is characterized by high levels of humidity at 87% and substantial rainfall, totaling 266 mm (10.5 in) over 26 days. In contrast, December offers cooler temperatures, with minimums dropping to 14°C (58°F) and an average of 27°C (80°F), while still peaking at 35°C (95°F). Rainfall is considerably lighter in December, with only 25 mm (1.0 in) recorded over just three days, and humidity decreases to 70%. For those interested in more details about December's climate, check out Suan Luang weather in December.

Compare Suan Luang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Suan Luang

September in Suan Luang is marked by high humidity and significant precipitation, setting it apart from the drier months. With an average temperature hovering around a comfortable 29°C (84°F), the warmth is tempered by frequent rain, creating a lush, vibrant atmosphere. The 26 days of rainfall contribute to a moist environment that is ideal for flourishing greenery but may also dampen outdoor plans. This month is characterized by a unique blend of tropical warmth and showers, making September a distinctly different experience in Suan Luang’s climate calendar. For more details, visit Suan Luang Climate.