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September Weather in Sai Noi, Thailand

Last updated: August 27, 2025

In September, the average temperature in Sai Noi, Thailand reaches a warm 29°C (84°F), with a comfortable minimum of 24°C (76°F) and a hot maximum of 37°C (98°F). Expect rainy days, as precipitation totals 248 mm (9.8 in) over about 23 days, contributing to a high average humidity of 87%. Enjoy the tropical climate, but don’t forget your umbrella!

September Temperature in Sai Noi

In September in Sai Noi, the average temperature is 29°C (84°F). The maximum can reach 37°C (98°F), and the minimum can be as low as 24°C (76°F). Be sure to pack light and breathable clothing for a comfortable trip.

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

The chart illustrates September temperature patterns in Sai Noi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sai Noi, September typically has an average temperature of 29°C (84°F), with highs reaching up to 37°C (98°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec818286878786858584838380
Data source: Temperature data for Sai Noi 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 Sai Noi

In Sai Noi in September, the total precipitation amount is 248 mm (9.8 in), occurring over a span of 23 days.

September Precipitation Trends in Sai Noi

The chart displays monthly precipitation patterns in Sai Noi, 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 Sai Noi, September typically receives around 248 mm (9.8 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec2110471111651311551702482386221
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sai Noi

In Sai Noi in September, humidity is 87%. With an average temperature of 29°C (84°F), this humidity feels like a warm blanket enveloping you, making traveling a challenge as you navigate the heavy, moist air that clings to your skin.

September Average Humidity in Sai Noi

This chart illustrates the average monthly humidity levels in Sai Noi, 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 Sai Noi is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%58%61%70%80%85%86%88%87%83%78%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sai Noi

In Sai Noi in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Sai Noi.

Maximum UV Index Levels in Sai Noi for September

The chart shows the monthly maximum UV Index (UVI) for Sai Noi 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 Sai Noi typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911121313121313131198
Data source: Sai Noi 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 Sai Noi Compares to Other Months

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

This table compares monthly weather conditions in Sai Noi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)20 mm (0.8 inches)59%very high
February Weather28°C (83°F)10 mm (0.4 inches)58%extreme
March Weather30°C (86°F)47 mm (1.8 inches)61%extreme
April Weather31°C (87°F)111 mm (4.4 inches)70%extreme
May Weather30°C (87°F)165 mm (6.5 inches)80%extreme
June Weather30°C (86°F)131 mm (5.2 inches)85%extreme
July Weather29°C (85°F)155 mm (6.1 inches)86%extreme
August Weather29°C (85°F)170 mm (6.7 inches)88%extreme
September Weather29°C (84°F)248 mm (9.8 inches)87%extreme
October Weather29°C (84°F)238 mm (9.4 inches)83%extreme
November Weather28°C (83°F)62 mm (2.4 inches)78%very high
December Weather27°C (81°F)21 mm (0.8 inches)70%very high

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