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September Weather in Si Narong, Thailand

Last updated: August 27, 2025

In September, the average temperature in Si Narong, Thailand is a warm 28°C (82°F). You'll experience minimum temperatures around 23°C (74°F) and can expect a maximum of 35°C (95°F). However, be prepared for significant rainfall, with an average precipitation of 259 mm (10.2 in) over 23 days. The humidity level is quite high at 89%, making it feel even warmer!

September Temperature in Si Narong

In September, in Si Narong, the average temperature is 28°C (82°F). Maximums can reach 35°C (95°F), and minimums can be as low as 23°C (74°F). This makes Si Narong a warm and pleasant destination for travelers looking to enjoy a sunny getaway.

September Weather in Si Narong: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Si Narong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Narong, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec777985858585838382817976
Data source: Temperature data for Si Narong 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 Si Narong

In Si Narong in September, the precipitation amount is 259 mm (10.2 in), occurring over 23 days.

September Precipitation Trends in Si Narong

The chart displays monthly precipitation patterns in Si Narong, 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 Si Narong, September typically receives around 259 mm (10.2 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec51830691261101811892591623912
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Si Narong

In Si Narong in September humidity is 89%. With an average temperature of 28°C (82°F), this humidity feels like a thick, warm blanket enveloping you, making every step feel slightly heavier and the air dense, which can be quite stifling for traveling.

September Average Humidity in Si Narong

This chart illustrates the average monthly humidity levels in Si Narong, 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 Si Narong is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec56%50%41%44%71%84%87%90%89%83%74%68%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Si Narong

In Si Narong 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 Si Narong, you can check here.

Maximum UV Index Levels in Si Narong for September

The chart shows the monthly maximum UV Index (UVI) for Si Narong 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 Si Narong typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131414151414141413109
Data source: Si Narong 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 Si Narong Compares to Other Months

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

This table compares monthly weather conditions in Si Narong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)5 mm (0.2 inches)56%very high
February Weather26°C (79°F)18 mm (0.7 inches)50%extreme
March Weather29°C (85°F)30 mm (1.2 inches)41%extreme
April Weather29°C (85°F)69 mm (2.7 inches)44%extreme
May Weather29°C (85°F)126 mm (5.0 inches)71%extreme
June Weather29°C (85°F)110 mm (4.3 inches)83%extreme
July Weather28°C (83°F)181 mm (7.1 inches)87%extreme
August Weather28°C (83°F)189 mm (7.5 inches)90%extreme
September Weather28°C (82°F)259 mm (10.2 inches)89%extreme
October Weather27°C (81°F)162 mm (6.4 inches)83%extreme
November Weather26°C (79°F)39 mm (1.5 inches)74%very high
December Weather24°C (76°F)12 mm (0.5 inches)68%very high

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