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September Weather in Nakhon Thai, Thailand

Last updated: August 27, 2025

In Nakhon Thai, Thailand, the average temperature in September reaches a warm 27°C (80°F), with a pleasant range where minimums can drop to 21°C (71°F) and maximums soar to 33°C (91°F). Expect a precipitation amount of 289 mm (11.4 in) spread over 26 days, contributing to an average humidity of a tropical 86%.

September Temperature in Nakhon Thai

In September in Nakhon Thai, the average temperature is 27°C (80°F). Maximums can reach 33°C (91°F), and minimums can be as low as 21°C (71°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy all that Nakhon Thai has to offer.

September Weather in Nakhon Thai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nakhon Thai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nakhon Thai, September typically has an average temperature of 27°C (80°F), with highs reaching up to 33°C (91°F) and lows dropping to around 21°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec747680828281808080797773
Data source: Temperature data for Nakhon Thai 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 Nakhon Thai

In Nakhon Thai in September, the precipitation amount is 289 mm (11.4 in) recorded over a span of 26 days.

September Precipitation Trends in Nakhon Thai

The chart displays monthly precipitation patterns in Nakhon Thai, 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 Nakhon Thai, September typically receives around 289 mm (11.4 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec142327111170219293322289154219
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nakhon Thai

In Nakhon Thai in September, humidity is 86%. With an average temperature of 27°C (80°F), this humidity feels like a warm, sticky blanket enveloping you, making travel feel heavy and exhausting as you navigate the sultry air.

September Average Humidity in Nakhon Thai

This chart illustrates the average monthly humidity levels in Nakhon Thai, 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 Nakhon Thai is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec52%49%39%40%69%81%83%87%86%74%63%57%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nakhon Thai

In Nakhon Thai 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 Nakhon Thai, you can check here.

Maximum UV Index Levels in Nakhon Thai for September

The chart shows the monthly maximum UV Index (UVI) for Nakhon Thai 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 Nakhon Thai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121314141314151413109
Data source: Nakhon Thai 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 Nakhon Thai Compares to Other Months

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

This table compares monthly weather conditions in Nakhon Thai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)14 mm (0.6 inches)52%very high
February Weather24°C (76°F)23 mm (0.9 inches)49%extreme
March Weather27°C (81°F)27 mm (1.1 inches)39%extreme
April Weather28°C (82°F)111 mm (4.4 inches)40%extreme
May Weather28°C (83°F)170 mm (6.7 inches)69%extreme
June Weather27°C (82°F)219 mm (8.6 inches)81%extreme
July Weather27°C (80°F)293 mm (11.5 inches)83%extreme
August Weather26°C (80°F)322 mm (12.7 inches)87%extreme
September Weather27°C (80°F)289 mm (11.4 inches)86%extreme
October Weather26°C (80°F)154 mm (6.1 inches)74%extreme
November Weather25°C (78°F)21 mm (0.8 inches)63%very high
December Weather23°C (73°F)9 mm (0.4 inches)57%very high

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