September Weather in Cha-uat, Thailand

Last updated: August 27, 2025

In Cha-uat, Thailand, the average temperature in September hovers around 28°C (82°F), making it a warm destination for travelers. Expect minimum temperatures of 23°C (74°F) and occasional highs reaching 37°C (99°F). Rainfall is frequent, with an average precipitation amount of 181 mm (7.1 in) spread over 25 days, complemented by a high humidity level of 84%.

September Temperature in Cha-uat

In September in Cha-uat, the average temperature is 28°C (82°F). Maximums can reach up to 37°C (99°F), while minimums can drop to as low as 23°C (74°F). This warm and pleasant climate makes Cha-uat an ideal destination for travelers looking to enjoy sunny weather.

September Weather in Cha-uat: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cha-uat, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cha-uat, September typically has an average temperature of 28°C (82°F), with highs reaching up to 37°C (99°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for Cha-uat generated using information from the Copernicus Climate Change Service.

September Precipitation in Cha-uat

In Cha-uat in September, the precipitation amount is 181 mm (7.1 in) spread over a period of 25 days.

September Precipitation Trends in Cha-uat

The chart displays monthly precipitation patterns in Cha-uat, 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 Cha-uat, September typically receives around 181 mm (7.1 inches) of precipitation spread over approximately 25 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Cha-uat

In Cha-uat in September humidity is 84%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel sticky and exhausting for traveling.

September Average Humidity in Cha-uat

This chart illustrates the average monthly humidity levels in Cha-uat, 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 Cha-uat is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cha-uat

In Cha-uat 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 Cha-uat, you can check here.

Maximum UV Index Levels in Cha-uat for September

The chart shows the monthly maximum UV Index (UVI) for Cha-uat 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 Cha-uat typically reaches 14, which falls under the extreme exposure category.

Data source: Cha-uat 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 Cha-uat Compares to Other Months

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

This table compares monthly weather conditions in Cha-uat, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	138 mm (5.4 inches)	76%	extreme
February Weather	27°C (81°F)	35 mm (1.4 inches)	73%	extreme
March Weather	28°C (83°F)	46 mm (1.8 inches)	74%	extreme
April Weather	29°C (84°F)	150 mm (5.9 inches)	71%	extreme
May Weather	29°C (84°F)	172 mm (6.8 inches)	72%	extreme
June Weather	28°C (83°F)	134 mm (5.3 inches)	79%	extreme
July Weather	29°C (84°F)	116 mm (4.6 inches)	79%	extreme
August Weather	28°C (83°F)	117 mm (4.6 inches)	82%	extreme
September Weather	28°C (82°F)	181 mm (7.1 inches)	84%	extreme
October Weather	27°C (82°F)	247 mm (9.7 inches)	83%	extreme
November Weather	27°C (81°F)	317 mm (12.5 inches)	84%	extreme
December Weather	27°C (80°F)	243 mm (9.6 inches)	84%	extreme