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September Weather in Thung Sai, Thailand

Last updated: August 27, 2025

In Thung Sai, Thailand, the average temperature in September hovers around 29°C (84°F), with minimums dipping to 24°C (76°F) and maximums soaring up to 36°C (98°F). Expect a good amount of rain, with 276 mm (10.9 in) of precipitation spread across 24 days. Coupled with an average humidity of 84%, this month brings a humid and wet experience!

September Temperature in Thung Sai

In September in Thung Sai, the average temperature is 29°C (84°F). Maximums can reach 36°C (98°F), while minimums can be as low as 24°C (76°F). This makes Thung Sai an ideal destination for those seeking warm weather and plenty of sunshine.

September Weather in Thung Sai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Thung Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thung Sai, September typically has an average temperature of 29°C (84°F), with highs reaching up to 36°C (98°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec788086888886858484838177
Data source: Temperature data for Thung Sai 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 Thung Sai

In Thung Sai in September, the precipitation amount is 276 mm (10.9 in) spread over 24 days.

September Precipitation Trends in Thung Sai

The chart displays monthly precipitation patterns in Thung Sai, 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 Thung Sai, September typically receives around 276 mm (10.9 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec181517821461912282772761883622
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Thung Sai

In Thung Sai in September, humidity is 84%. With an average temperature of 29°C (84°F), this humidity feels like a warm blanket enveloping you, making travel sticky and somewhat stifling, yet invigorating, as every step is accompanied by a gentle, humid embrace.

September Average Humidity in Thung Sai

This chart illustrates the average monthly humidity levels in Thung Sai, 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 Thung Sai is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%48%45%49%71%84%84%87%84%71%62%55%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Thung Sai

In Thung Sai in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Thung Sai, you can check here.

Maximum UV Index Levels in Thung Sai for September

The chart shows the monthly maximum UV Index (UVI) for Thung Sai 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 Thung Sai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121313141314141413109
Data source: Thung Sai 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.

How September Weather in Thung Sai Compares to Other Months

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

This table compares monthly weather conditions in Thung Sai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)17 mm (0.7 inches)51%very high
February Weather27°C (80°F)15 mm (0.6 inches)48%extreme
March Weather30°C (86°F)17 mm (0.7 inches)45%extreme
April Weather31°C (88°F)82 mm (3.2 inches)49%extreme
May Weather31°C (88°F)146 mm (5.7 inches)71%extreme
June Weather30°C (87°F)191 mm (7.5 inches)84%extreme
July Weather29°C (85°F)228 mm (9.0 inches)84%extreme
August Weather29°C (85°F)277 mm (10.9 inches)87%extreme
September Weather29°C (84°F)276 mm (10.9 inches)84%extreme
October Weather28°C (83°F)188 mm (7.4 inches)71%extreme
November Weather27°C (81°F)36 mm (1.4 inches)62%very high
December Weather25°C (77°F)22 mm (0.9 inches)55%very high

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