September Weather in Phimai, Thailand

Last updated: August 27, 2025

September in Phimai, Thailand, brings a warm and humid climate characterized by a maximum temperature of 35°C (96°F) and an average of 28°C (83°F), making it a season for heat lovers. Nights are relatively cooler, with a minimum temperature around 24°C (75°F). However, this month is also marked by significant rainfall, totaling 242 mm (9.5 in) over 23 days, creating lush landscapes and a vibrant atmosphere. With humidity levels soaring at 88%, the air feels quite heavy, making the tropical environment palpable. Visitors should prepare for both sunny breaks and unexpected downpours while exploring this fascinating region.

September Temperature in Phimai

In September, Phimai, Thailand experiences a gentle transition as the heat of summer begins to wane. The minimum temperature hovers at a comfortable 24°C (75°F), while the average temperature settles at a pleasant 28°C (83°F), providing a welcome respite from the peak summer swelter. With a maximum of 35°C (96°F), this month offers a more temperate climate compared to the scorching peaks observed earlier in the year, particularly in April and May. As the rainy season approaches, the atmosphere becomes increasingly humid, yet the overall warmth remains inviting for outdoor exploration. This trend of gradually cooling temperatures makes September an ideal time for visitors to enjoy the cultural richness and natural beauty of Phimai without the oppressive heat that characterizes the earlier months.

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

The chart illustrates September temperature patterns in Phimai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phimai, 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).
JanFebMarAprMayJunJulAugSepOctNovDec778085858585848382817976
Data source: Temperature data for Phimai 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 Phimai

In September, Phimai, Thailand, experiences a dramatic peak in precipitation, totaling an impressive 242 mm (9.5 in) over 23 days of rain. This marks the zenith of the wet season, a stark contrast to the relatively dry months at the year's start, like January and February, when rainfall barely reaches 7 mm (0.3 in). As the year progresses, rainfall steadily escalates, particularly from May onward, culminating in September's intense deluge. The monsoon-like conditions not only nourish the lush landscapes of Phimai but also signify a crucial replenishment of local waterways, setting the stage for a vibrant natural ecosystem. Following September, rainfall begins to taper off slightly in October, reminding us of the seasonal ebb and flow that characterizes this enchanting region.

September Precipitation Trends in Phimai

The chart displays monthly precipitation patterns in Phimai, 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 Phimai, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec783383165110207193242172348
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Phimai

As the calendar shifts to September in Phimai, Thailand, the weather takes on a notably humid character, with levels reaching an impressive 88%. This marks a gradual increase from the earlier months, where humidity was relatively low, peaking at 41% in March. The transition from the dry season to the wet season becomes evident as May brings a significant rise to 76%, followed by a steady climb through June and July. By the time September arrives, the humidity feels palpable, adding to the tropical ambiance of the region. The trend in humidity reveals a clear seasonal pattern: while January to April provides a reprieve with drier air, the latter months see an unmistakable shift towards a more drenched climate, culminating in the humid embrace of September before the gradual decline into October.

September Average Humidity in Phimai

This chart illustrates the average monthly humidity levels in Phimai, 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 Phimai is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec50%47%41%51%76%83%80%86%88%79%68%59%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Phimai

In September, Phimai, Thailand, experiences an extreme UV Index of 14, maintaining the trend of high levels seen throughout the summer months. With a burn time of just 10 minutes, the sun’s intensity remains a significant concern for outdoor enthusiasts and sun-seekers alike. This month, along with its predecessors, underscores a consistent call for sun safety as Phimai endures challenging ultraviolet radiation levels. Notably, the UV Index reaches its peak of 14 from March to August, before slightly dipping in October. As bright skies prevail, it’s essential to stay informed and protect your skin. For more detailed insights, visit Phimai UV Index.

Maximum UV Index Levels in Phimai for September

The chart shows the monthly maximum UV Index (UVI) for Phimai 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 Phimai typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9131414141314141413109
Data source: Phimai 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 Phimai

September in Phimai, Thailand, offers a gentle transition in sunshine as the sweltering summer months draw to a close. With 276 hours of sunlight, September sees a modest decrease from the peak of 326 hours in March, reflecting the gradual shift towards the rainy season. While still basking in ample sunlight, the days start to shorten, hinting at the imminent arrival of cooler and cloudier months. This time of year invites both locals and visitors to enjoy the last lingering days of summer, with an abundance of warm sunlight that perfectly complements the vibrant landscapes and rich history of this charming town. As October approaches, the sunshine barely dims with 281 hours, maintaining the allure of Phimai as a warm destination even as the seasons change.

Monthly Sunshine Duration in Phimai: September Highlighted

The September sunshine duration represents the total number of hours Phimai 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.
JanFebMarAprMayJunJulAugSepOctNovDec258h298h326h313h323h298h285h283h276h281h296h314h
Data source: Phimai September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Phimai During September

In September, Phimai, Thailand experiences a significant dip in sunny days, with a mere 12% chance of clear skies. This marks the tail end of the rainy season, where the vibrant greenery of the landscape is contrasted by the unpredictable weather. Observing the broader trend throughout the year, we see a stark contrast: from January's robust 71% sunshine down to the dismal figures of late summer. As the months progress from the dry season into the rainy season, sunny days become increasingly scarce, peaking again in the late fall with a 44% chance of sun in November. Thus, if you’re hoping for a sun-soaked September in Phimai, you might want to have an umbrella handy instead!

Percentage of Sunny Days in September in Phimai

The chart illustrates the percentage of sunny days in Phimai 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 Phimai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec71%84%61%26%38%17%13%12%12%19%44%62%
Data source: Phimai September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Phimai in September

September in Phimai, Thailand, offers a delightful balance of 12 hours of daylight, mirroring the consistent daylight duration experienced in the preceding months. As the year transitions from the long, sun-drenched days of June, which boasts the most daylight at 13 hours, the pattern settles into a rhythm where the daylight remains steady through the summer and into early autumn. Following September, daylight gradually begins to wane, dipping down to 11 hours in October and continuing on this trend through the final months of the year. This gradual shift reflects the natural ebb and flow of sunlight, aligning perfectly with the shifting seasons and providing a steady environment for both residents and visitors to enjoy the vibrancy of Phimai.

Average Daylight Hours in Phimai for September

The chart illustrates the variation in daylight duration in Phimai throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 19m11h 37m12h 2m12h 28m12h 49m13h12h 54m12h 36m12h 11m11h 46m11h 24m11h 13m
Data source: Phimai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Phimai

As September unfolds in Phimai, Thailand, the average wind speed dips to 1.9 m/s (4 mph), marking a gentle breeze that contrasts sharply with the higher velocities of the preceding months. This slight reduction follows a summer punctuated by more robust winds, peaking at 3.2 m/s (7 mph) in July. The transition into September reflects the calming of the seasonal patter, leading to a tranquil atmosphere that's perfect for leisurely outdoor activities. As the month progresses, the winds remain relatively mild, hinting at the approach of the cooler, more animated months ahead in October and November, where the speeds are anticipated to rise once again. This cyclical rhythm of wind patterns not only shapes the local climate but also enhances the charm of Phimai during this serene period.

Average September Wind Speed in Phimai

The chart displays monthly wind speed patterns in Phimai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.12.52.11.81.93.13.22.61.9 m/s2.33.13.7
Data source: Phimai September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Phimai Compares to Other Months

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

September and January present contrasting weather patterns. September experiences significantly warmer temperatures, with averages around 28°C (83°F) and a maximum of 35°C (96°F), alongside high humidity at 88% and considerable rainfall of 242 mm (9.5 in) over 23 days. In contrast, January offers a cooler climate, with average temps of 25°C (77°F) and maxima reaching up to 37°C (98°F), but with vastly reduced precipitation at just 7 mm (0.3 in) over a single day and a much lower humidity rate of 50%. This makes January a dry and relatively pleasant month compared to the wet and humid September. For more on January weather, you can check Phimai weather in January.

The weather in September is characterized by much higher humidity and significant precipitation, with average temperatures ranging from a mild 24°C (75°F) to a sizzling maximum of 35°C (96°F). In contrast, February offers a drier and warmer climate, with temperatures reaching up to 39°C (102°F) but with significantly lower humidity at 47% and minimal rainfall of just 8 mm over 2 days. This stark difference highlights September's wet and humid conditions compared to February's dry heat. For more detailed information on February weather, check out Phimai weather in February.

September and March present strikingly different weather patterns. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 35°C (96°F), with an average of 28°C (83°F). The month is characterized by high humidity at 88% and significant rainfall, totaling 242 mm (9.5 in) over 23 days. In contrast, March experiences higher maximum temperatures, soaring to 41°C (105°F), with a comfortable average of 29°C (85°F) and a minimum of 19°C (66°F). Rainfall is minimal, with only 33 mm (1.3 in) occurring over just 6 days, and the humidity drops to a more pleasant 41%. For more details on March weather specifically in Phimai, check out this link: Phimai weather in March.

September and April present contrasting weather patterns. In September, the temperatures range from a minimum of 24°C (75°F) to a maximum of 35°C (96°F), accompanied by high humidity at 88% and significant rainfall of 242 mm (9.5 in) over 23 days. In contrast, April experiences a wider temperature range, with a minimum of 16°C (62°F) and a maximum soaring to 41°C (107°F). This month sees much less precipitation, at 82 mm (3.2 in) across 15 days, and the humidity drops to a more comfortable 51%. Thus, while September is marked by warmth and moisture, April tends towards hotter temperatures with drier air. For more details, you can refer to Phimai weather in April.

In September, the weather tends to be quite hot, with minimum temperatures around 24°C (75°F) and average highs reaching up to 35°C (96°F). This month also experiences significant precipitation, totaling 242 mm (9.5 in) over 23 days, contributing to a high humidity level of 88%. In contrast, May sees slightly cooler temperatures, with minimums around 20°C (68°F) and maximums peaking at a scorching 41°C (106°F), making it the hottest month. However, rainfall in May is somewhat less, at 165 mm (6.5 in) over 20 days, accompanied by lower humidity levels of 76%. For more detailed information about the weather conditions in May, you can visit Phimai weather in May.

In comparing the weather between September and June, both months display warm temperatures, though June exhibits hotter extremes. In June, the average temperature reaches 30°C (86°F), with maximums soaring up to 40°C (104°F), while September's average is slightly lower at 28°C (83°F), with maximums reaching 35°C (96°F). Precipitation is notably higher in September, totaling 242 mm (9.5 in) over 23 days, compared to June's 110 mm (4.3 in) over 20 days. Additionally, September has higher humidity at 88%, compared to June's 83%. For more details, you can check out Phimai weather in June.

In comparing the weather conditions of September and July, September tends to be slightly cooler, with average temperatures around 28°C (83°F) compared to July's 29°C (84°F). However, July experiences higher maximum temperatures, reaching up to 38°C (100°F), while September caps at 35°C (96°F). Both months see significant rainfall, but September surpasses July with 242 mm (9.5 in) of precipitation over 23 days, compared to July's 206 mm (8.1 in) over 22 days. Additionally, September has a higher humidity level at 88% versus July’s 80%. For those interested in more detailed weather information for July, you can check Phimai weather in July.

In comparing the weather between August and September, we see some notable differences. Both months have similar minimum temperatures, with September maintaining a steady low of 24°C (75°F). However, September has a slightly lower average temperature of 28°C (83°F) compared to August's 29°C (84°F), and max temperatures are also slightly lower in September, reaching up to 35°C (96°F) versus August's 36°C (97°F).

One significant difference is the increased precipitation in September, with 242 mm (9.5 in) of rain over 23 days, compared to August's 193 mm (7.6 in) over 25 days. Additionally, September's humidity is slightly higher at 88%, while August sits at 85%. Overall, September tends to be wetter and a touch cooler than August. For more detailed information, you can check Phimai weather in August.

In comparing the weather patterns of September and October, it's clear that September tends to be hotter and more humid. With average temperatures peaking at 28°C (83°F) and a maximum of 35°C (96°F), it also sees higher precipitation levels of 242 mm (9.5 in) across 23 days, leading to a noticeable humidity of 88%. In contrast, October brings a slight relief with lower temperatures, averaging 27°C (81°F) and a minimum of 20°C (68°F). The month experiences less rainfall, totaling 172 mm (6.8 in) over 18 days, contributing to a more comfortable humidity level of 79%. For those interested in the specifics of weather conditions, you can find more details at Phimai weather in October.

September and November present contrasting weather conditions. In September, temperatures are warmer with a minimum of 24°C (75°F) and an average of 28°C (83°F), reaching up to a scorching 35°C (96°F). However, this month experiences significant rainfall, averaging 242 mm (9.5 in) over 23 days, accompanied by high humidity at 88%. In contrast, November sees milder temperatures, with a minimum of 17°C (64°F) and an average of 26°C (80°F), while still peaking at 35°C (95°F). This month enjoys considerably less precipitation, totaling just 34 mm (1.3 in) over only 6 days, and lower humidity levels at 68%. For a detailed look at November weather in Phimai, check out Phimai weather in November.

The weather in September is characterized by high temperatures and significant rainfall, with minimums around 24°C (75°F), average highs of 28°C (83°F), and maximums reaching 35°C (96°F). This month experiences heavy precipitation, totaling 242 mm (9.5 in) over 23 days, and a humidity level of 88%, creating a very humid atmosphere.

In contrast, December offers a much drier and cooler climate. The minimum temperature drops to 12°C (54°F), while the averages are around 25°C (77°F), and it still peaks at 35°C (96°F) on warmer days. December sees only 8 mm (0.3 in) of rainfall over just 1 day, with humidity decreasing to 59%.

For more details on weather conditions specific to December, you can refer to Phimai weather in December.

Compare Phimai's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Phimai

September in Phimai is characterized by higher humidity and significant rainfall, setting it apart from the drier months. With frequent rainstorms and cloudy skies, temperatures remain relatively mild compared to the peak heat of the preceding months, creating a more comfortable atmosphere for visitors. This month sees considerable precipitation, making it one of the wettest periods of the year. For those looking to explore the unique beauty of Phimai during this vibrant season, understanding the climate nuances is essential. To learn more about what to expect throughout the year, visit Phimai Climate.