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September Weather in Sap Yai, Thailand

Last updated: August 27, 2025

In September, the average temperature in Sap Yai, Thailand is a warm 27°C (81°F), with a minimum of 22°C (72°F) and a maximum reaching up to 33°C (93°F). Expect significant precipitation, averaging 307 mm (12.1 in) over 25 days, and a notable humidity level of 88%. Perfect for those who love a tropical vibe!

September Temperature in Sap Yai

In September in Sap Yai, the average temperature is 27°C (81°F). Maximums can reach 33°C (93°F), and minimums can be as low as 22°C (72°F). This pleasant climate makes Sap Yai an ideal destination for travelers seeking warmth and comfort during their trip.

September Weather in Sap Yai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sap Yai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sap Yai, September typically has an average temperature of 27°C (81°F), with highs reaching up to 33°C (93°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec767782828282818080807975
Data source: Temperature data for Sap Yai 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 Sap Yai

In Sap Yai in September, the total precipitation amount is 307 mm (12.1 in), spread over 25 days.

September Precipitation Trends in Sap Yai

The chart displays monthly precipitation patterns in Sap Yai, 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 Sap Yai, September typically receives around 307 mm (12.1 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec72043100200202276273307187187
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sap Yai

In Sap Yai in September, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

September Average Humidity in Sap Yai

This chart illustrates the average monthly humidity levels in Sap Yai, 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 Sap Yai is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec50%47%41%51%76%83%80%86%88%79%68%59%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sap Yai

In Sap Yai 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 Sap Yai, you can check here.

Maximum UV Index Levels in Sap Yai for September

The chart shows the monthly maximum UV Index (UVI) for Sap Yai 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 Sap Yai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121414141314141413109
Data source: Sap Yai 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 Sap Yai Compares to Other Months

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

This table compares monthly weather conditions in Sap Yai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)7 mm (0.3 inches)50%very high
February Weather25°C (78°F)19 mm (0.8 inches)47%extreme
March Weather28°C (82°F)43 mm (1.7 inches)41%extreme
April Weather28°C (83°F)100 mm (3.9 inches)51%extreme
May Weather28°C (83°F)200 mm (7.9 inches)76%extreme
June Weather28°C (82°F)202 mm (7.9 inches)83%extreme
July Weather27°C (81°F)276 mm (10.9 inches)80%extreme
August Weather27°C (80°F)273 mm (10.7 inches)85%extreme
September Weather27°C (81°F)307 mm (12.1 inches)88%extreme
October Weather27°C (80°F)187 mm (7.4 inches)79%extreme
November Weather26°C (79°F)18 mm (0.7 inches)68%very high
December Weather24°C (75°F)7 mm (0.3 inches)59%very high

Compare Sap Yai's Climate with Cities Worldwide