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September Weather in Surin, Thailand

Last updated: August 27, 2025

In September, the average temperature in Surin, Thailand is a warm 28°C (83°F), with a minimum of 23°C (74°F) and a maximum reaching up to 35°C (95°F). Visitors should prepare for the potential of rain, as the region experiences an average precipitation of 280 mm (11.0 in) over 23 days. Additionally, the atmosphere can feel quite humid, with an average humidity level of 89%.

September Temperature in Surin

In September in Surin, the average temperature is 28°C (83°F). Maximum temperatures can reach 35°C (95°F), while the minimum can drop to as low as 23°C (74°F). This warm climate makes Surin an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Surin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Surin, September typically has an average temperature of 28°C (83°F), with highs reaching up to 35°C (95°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec777985858585848382817976
Data source: Temperature data for Surin 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 Surin

In Surin, in September, the precipitation amount is 280 mm (11.0 in) over a span of 23 days.

September Precipitation Trends in Surin

The chart displays monthly precipitation patterns in Surin, 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 Surin, September typically receives around 280 mm (11.0 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec51427661431132192132801814310
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Surin

In Surin in September, humidity is 89%. With an average temperature of 28°C (83°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities feel sticky and strenuous, and requiring constant hydration to stay comfortable while exploring.

September Average Humidity in Surin

This chart illustrates the average monthly humidity levels in Surin, 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 Surin 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 Surin

In Surin 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 Surin, you can check here.

Maximum UV Index Levels in Surin for September

The chart shows the monthly maximum UV Index (UVI) for Surin 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 Surin typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131414151314141413109
Data source: Surin 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 Surin Compares to Other Months

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

This table compares monthly weather conditions in Surin, 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)14 mm (0.6 inches)50%extreme
March Weather29°C (85°F)27 mm (1.1 inches)41%extreme
April Weather30°C (86°F)66 mm (2.6 inches)44%extreme
May Weather30°C (85°F)143 mm (5.6 inches)71%extreme
June Weather30°C (86°F)113 mm (4.5 inches)83%extreme
July Weather29°C (84°F)219 mm (8.6 inches)87%extreme
August Weather28°C (83°F)213 mm (8.4 inches)90%extreme
September Weather28°C (83°F)280 mm (11.0 inches)89%extreme
October Weather27°C (81°F)181 mm (7.1 inches)83%extreme
November Weather26°C (80°F)43 mm (1.7 inches)74%very high
December Weather24°C (76°F)10 mm (0.4 inches)68%very high

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