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September Weather in Khun Tan, Thailand

Last updated: August 27, 2025

In September, the average temperature in Khun Tan, Thailand hovers around 27°C (81°F). However, temperatures can vary significantly, with minimums dipping to 20°C (69°F) and maximums soaring up to 36°C (96°F). Visitors can expect substantial rainfall, with 259 mm (10.2 in) of precipitation over 27 days, contributing to an average humidity level of 85%. Plan accordingly to enjoy this vibrant destination!

September Temperature in Khun Tan

In September in Khun Tan, the average temperature is 27°C (81°F). Maximums can reach 36°C (96°F), while minimums can drop to as low as 20°C (69°F). This warm climate makes Khun Tan an ideal destination for travelers seeking pleasant weather and outdoor adventures.

September Weather in Khun Tan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Khun Tan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Khun Tan, September typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (96°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec707380828483828181797569
Data source: Temperature data for Khun Tan 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 Khun Tan

In Khun Tan in September, the precipitation amount is 259 mm (10.2 in) spread over 27 days.

September Precipitation Trends in Khun Tan

The chart displays monthly precipitation patterns in Khun Tan, 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 Khun Tan, September typically receives around 259 mm (10.2 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec281171021332183204002591732921
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Khun Tan

In Khun Tan in September humidity is 85%. With an average temperature of 27°C (81°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier as sweat clings to your skin and the air feels almost tangible, which can be quite challenging for traveling.

September Average Humidity in Khun Tan

This chart illustrates the average monthly humidity levels in Khun Tan, 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 Khun Tan is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec57%53%45%39%66%79%90%92%85%72%64%60%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Khun Tan

In Khun Tan 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 Khun Tan, you can check here.

Maximum UV Index Levels in Khun Tan for September

The chart shows the monthly maximum UV Index (UVI) for Khun Tan 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 Khun Tan typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9101313141314141413108
Data source: Khun Tan 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 Khun Tan Compares to Other Months

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

This table compares monthly weather conditions in Khun Tan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)28 mm (1.1 inches)57%very high
February Weather23°C (73°F)10 mm (0.4 inches)53%very high
March Weather26°C (80°F)7 mm (0.3 inches)45%extreme
April Weather28°C (82°F)102 mm (4.0 inches)39%extreme
May Weather29°C (84°F)133 mm (5.2 inches)66%extreme
June Weather28°C (83°F)218 mm (8.6 inches)79%extreme
July Weather28°C (82°F)320 mm (12.6 inches)90%extreme
August Weather27°C (81°F)400 mm (15.7 inches)92%extreme
September Weather27°C (81°F)259 mm (10.2 inches)85%extreme
October Weather26°C (79°F)173 mm (6.8 inches)72%extreme
November Weather24°C (75°F)29 mm (1.1 inches)64%very high
December Weather21°C (69°F)21 mm (0.8 inches)60%very high

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