Last updated: August 27, 2025
In September, Phaya Thai, Thailand, experiences a warm and humid climate characterized by an average temperature of 29°C (84°F), peaking at a maximum of 36°C (97°F). The minimum temperature settles around 24°C (76°F), providing a consistent warmth throughout the month. However, be prepared for significant precipitation, as September records an impressive 245 mm (9.6 in) over the course of 24 rainy days. With a humid environment averaging 87%, this month presents a vibrant, albeit wet, tropical experience for visitors and residents alike.
In September, Phaya Thai, Thailand, experiences a mild transition as temperatures subtly begin to shift. With a minimum of 24°C (76°F) and an average of 29°C (84°F), the weather remains comfortably warm, yet the maximum temperature settles at 36°C (97°F), signaling a slight cooldown compared to the peak of the rainy season. This month serves as a bridge from the steamy summer months into the more temperate autumn, with humidity levels still noticeable but gradually less oppressive than in the preceding months. September presents a favorable environment for exploration, as the average climate invites both locals and tourists to relish the beauty of the city while enjoying the lush greenery that the rain has bestowed.
In September, Phaya Thai, Thailand, experiences a significant uptick in precipitation, with an impressive 245 mm (9.6 in) of rain falling over 24 days. This marks the peak of the rainy season, following a progressive increase in rainfall from earlier months. The heavy downpours contribute to a stark contrast with February's mere 14 mm (0.5 in), showcasing the region's transition into its wettest period. As the monsoon continues into October with slightly increased precipitation at 250 mm (9.9 in), the pattern highlights not only the region's vulnerability to heavy rains but also the rhythm of life that adapts to these seasonal shifts. Thus, September stands out as a defining moment in Phaya Thai's yearly climate, underscoring the importance of water in the local ecosystem and its undeniable influence on daily life.
As September arrives in Phaya Thai, Thailand, humidity levels remain notably high, averaging 87%. This marks a slight decline from August's peak of 88%, yet maintains a hefty presence throughout the month. The trend reveals a gradual increase in humidity from the cooler, drier months of January and February, culminating in a tropical peak during the mid-year months. With September still firmly within the rainy season, residents and visitors alike can expect warm, sticky conditions that linger into October, where humidity levels drop only slightly to 83%. This pattern underscores the region's characteristic tropical climate, which invites both the vibrant greenery and occasional downpours that define this time of year.
In September, Phaya Thai, Thailand, experiences a UV Index of 13, categorizing the sun exposure as extreme and establishing a burn time of just 10 minutes. This month marks a slight decrease from the higher indices recorded during July and August, both peaking at 14. However, the UV levels remain significantly elevated, underscoring the need for sun protection as the region transitions towards the end of the rainy season. In fact, September is consistently representative of the extreme levels that dominate the earlier months from February through July, making it crucial for residents and visitors alike to stay aware of sun safety. For more detailed information, check out the Phaya Thai UV Index.
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As September unfolds in Phaya Thai, Thailand, the warmth of summer begins to wane, yielding to a gentle transition into the cooler months. With 268 hours of sunshine, September showcases a charming dip in daylight compared to the vibrant peaks of February and March, which boast an impressive 299 and 336 hours respectively. This gradual decrease in sunlight hints at the approach of the rainy season, as the sun’s radiant dominance gives way to increasingly soft, overcast days. However, despite the moderation in sunlit hours, the month retains its allure with enough bright days to encourage outdoor exploration amidst the rich cultural tapestry of the city. As October approaches, Phaya Thai anticipates a slight revival in sunshine, making it an ideal time for both locals and visitors to bask in the unique blend of urban life and nature before the rains fully arrive.
In Phaya Thai, Thailand, September marks one of the least sunny months of the year, with only a 10% chance of sun. This trend follows a sharp decline in sunny days from the higher probabilities in earlier months, such as February at 76% and a steady drop from June, where the likelihood plummets to just 17%. As the monsoon season peaks during this time, the region experiences increased cloud cover and rain, making it a less favorable time for sun-seekers. While the sun may be elusive in September, those visiting can still enjoy the lush greenery that accompanies the rainy season, adding a unique charm to their experience.
In Phaya Thai, Thailand, the rhythm of daylight throughout the year presents a fascinating trend. As the year begins, January and February bask in 11 hours of daylight, creating a gentle transition into the longer days of spring. By March, daylight begins to stretch to 12 hours, a duration that continues consistently through April, May, June, July, August, and September, enhancing outdoor activities and vibrant lifestyles. This period of prolonged daylight peaks in the mid-year months, allowing for more sunshine-filled experiences. However, as October arrives, daylight retreats back to 11 hours, signaling the gentle shift toward the end of the year, where November and December similarly offer shorter days. This ebb and flow of daylight not only showcases the beauty of the changing seasons but also reflects the natural cycles that define life in Phaya Thai.
As September rolls into Phaya Thai, Thailand, the wind gently whispers through the streets, averaging a moderate 2.0 m/s (5 mph). This slight decrease from the summer breeze mirrors the transitioning seasons, as the wind speeds gradually ebb from the more lively 3.0 m/s (7 mph) seen in June and March. Despite this dip, September retains a refreshing atmosphere, with breezes reminiscent of earlier months like May and August, where the winds danced around 2.4 m/s (5 mph). The trend indicates a gradual stabilization in wind patterns, suggesting a calm transition into the cooler months ahead, while still gracing the region with a touch of lightness and ease.
Weather in Phaya Thai varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Phaya Thai, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns. In September, the climate is characterized by higher temperatures, with a minimum of 24°C (76°F) and an average of 29°C (84°F), peaking at a sweltering 36°C (97°F). This month also experiences considerable rainfall, totaling 245 mm (9.6 in) over 24 days, contributing to a high humidity level of 87%. In stark contrast, January features cooler temperatures, with a minimum of 16°C (61°F) and an average of 27°C (81°F), reaching a maximum of 35°C (94°F). The precipitation in January is minimal, with only 29 mm (1.1 in) falling across just 3 days, resulting in a significantly lower humidity of 59%. For more details on January weather, check out Phaya Thai weather in January.
September's weather is characterized by significantly warmer temperatures, with average highs reaching 36°C (97°F) and an average humidity of 87%. This month is also marked by substantial rainfall, with 245 mm (9.6 in) of precipitation spread over 24 days. In contrast, February experiences milder conditions, featuring a lower minimum temperature of 19°C (66°F) and an average high of 35°C (96°F). Additionally, February is much drier, receiving only 14 mm (0.5 in) of rain over just three days, with humidity dropping to a comfortable 58%. For more details on weather conditions specific to February, you can visit Phaya Thai weather in February.
In comparing the weather between September and March, one can see notable differences in temperature and precipitation. September typically experiences a min temperature of 24°C (76°F) and an average of 29°C (84°F), while March boasts slightly cooler evening temps with a minimum of 22°C (72°F) and a higher average temperature of 30°C (86°F). Although March reaches a maximum of 37°C (99°F), it is significantly drier than September, which sees a staggering 245 mm (9.6 in) of rainfall over 24 days compared to March's modest 44 mm (1.7 in) over just 5 days. Additionally, September’s humidity level is much higher at 87%, compared to the 61% humidity seen in March. For more detailed weather insights, you can refer to Phaya Thai weather in March.
September and April present distinct weather patterns, with September typically experiencing slightly higher humidity at 87% compared to April's 70%. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), averaging around 29°C (84°F), while April sees a similar average of 30°C (87°F) but can reach up to 38°C (100°F) at its peak. Precipitation is notably higher in September, with 245 mm (9.6 in) falling over 24 days, compared to April's 107 mm (4.2 in) across just 12 days. For more detailed information, check out Phaya Thai weather in April.
September and May both feature warm temperatures, but September tends to have a slightly cooler average with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F). In contrast, May can reach higher extremes, with temperatures peaking at 40°C (103°F). Both months experience significant humidity, with September averaging 87% compared to May's 80%. Rainfall is more prevalent in September, with 245 mm (9.6 in) over 24 days, while May receives less precipitation at 142 mm (5.6 in) over 19 days. For more details on May's weather, you can check Phaya Thai weather in May.
In comparing the weather of September to that of June, we observe some notable differences. September tends to be slightly cooler with a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), while June showcases a minimum of 25°C (78°F) and an average temperature of 30°C (86°F). In terms of heat, both months reach similar maximum temperatures, with September peaking at 36°C (97°F) and June at 37°C (99°F). However, September is significantly wetter, receiving 245 mm (9.6 in) of rainfall over 24 days, compared to June’s 112 mm (4.4 in) over 22 days. The humidity levels are also quite similar, with September at 87% and June at 85%. For a more detailed look at the June weather, you can visit Phaya Thai weather in June.
In comparing the weather between July and September, we see notable similarities and differences. Both months experience high temperatures, with September having a minimum of 24°C (76°F) and an average of 29°C (84°F), while July's minimum is slightly higher at 25°C (78°F) with a similarly average 29°C (85°F). However, July can reach a peak of 37°C (99°F), compared to September's maximum of 36°C (97°F).
Precipitation levels differ significantly as well; September is marked by notably heavier rainfall, totaling 245 mm (9.6 in) over 24 days, compared to July, which receives 159 mm (6.2 in) over 26 days. Humidity remains high in both months, with September at 87% and July at 86%. For more detailed information on July weather specifics, you can check Phaya Thai weather in July.
In comparing the weather between August and September, both months exhibit similar average temperatures, with September showing a slight decrease in minimum temperature at 24°C (76°F) compared to August’s 25°C (77°F). Maximum temperatures are also slightly lower in September, reaching 36°C (97°F), while August peaks at 37°C (99°F). However, September experiences significantly higher precipitation, recording 245 mm (9.6 in) across 24 days, in contrast to August's 163 mm (6.4 in) over 23 days. Humidity levels remain fairly constant, with September at 87% and August slightly higher at 88%. For more specific details, you can check Phaya Thai weather in August.
September and October share similar average temperatures, with September slightly warmer, peaking at 36°C (97°F) compared to October's maximum of 35°C (96°F). Both months experience high humidity levels, though October sees a slight decrease to 83% from September's 87%. In terms of precipitation, October records a marginal increase to 250 mm (9.9 in) over 21 days, while September totals 245 mm (9.6 in) across 24 days, indicating a slightly drier pattern in October. For more specific details about October weather in the Phaya Thai area, you can check out Phaya Thai weather in October.
In September, the weather is characterized by warmer temperatures, with a minimum of 24°C (76°F) and an average of 29°C (84°F), peaking at 36°C (97°F). This month also experiences significant rainfall, with a total precipitation of 245 mm (9.6 in) across 24 days and high humidity levels at 87%. In contrast, November offers a slightly cooler climate, with minimum temperatures of 21°C (70°F) and an average of 28°C (83°F), reaching a maximum of 35°C (95°F). Notably, the month sees much less precipitation, totaling 61 mm (2.4 in) over only 9 days and lower humidity at 78%. For more details on the specific weather conditions in November, you can visit Phaya Thai weather in November.
September and December present quite contrasting weather patterns. In September, the temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), with an average of 29°C (84°F). This month also experiences significant rainfall, totaling 245 mm (9.6 in) over 24 days, contributing to a high humidity level of 87%. In contrast, December enjoys milder temperatures, with minima around 15°C (59°F) and maxima of 35°C (95°F), averaging 27°C (80°F). Rainfall is minimal, only 24 mm (0.9 in) over 2 days, and humidity levels drop to a more comfortable 70%. For more detailed information about December weather, you can visit Phaya Thai weather in December.
As September arrives in Phaya Thai, the weather takes a notable turn, characterized by heightened humidity levels and frequent rainfall. With nearly 24 days of precipitation, this month stands out as one of the wettest in the region, contrasting sharply with the drier months of the year. Temperatures remain warm, but the increased cloud cover and rain can make the heat feel more oppressive. This combination creates a unique atmosphere that is both steamy and refreshing, offering a different experience compared to the sunnier, dryer spells of the preceding months. For a detailed overview of the seasonal variations, check out our page on Phaya Thai Climate.