September Weather in Si Sa Ket, Thailand

Last updated: August 27, 2025

In September, the average temperature in Si Sa Ket, Thailand hovers around 28°C (83°F), making it a warm destination. Visitors can expect temperatures to range from a comfortable 24°C (75°F) to a sweltering 35°C (95°F). However, be prepared for some rain, as the area experiences about 289 mm (11.4 in) of precipitation over 24 days, with an average humidity of 89%. Embrace the warmth, but don’t forget your umbrella!

September Temperature in Si Sa Ket

In September in Si Sa Ket, the average temperature is 28°C (83°F). The maximum can reach 35°C (95°F), and the minimum can be as low as 24°C (75°F). This warm and pleasant climate makes it an ideal time for exploring and enjoying outdoor activities in Si Sa Ket.

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

The chart illustrates September temperature patterns in Si Sa Ket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Sa Ket, 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 24°C (75°F).

Data source: Temperature data for Si Sa Ket generated using information from the Copernicus Climate Change Service.

September Precipitation in Si Sa Ket

In Si Sa Ket in September, the total precipitation amount is 289 mm (11.4 in), occurring over a span of 24 days.

September Precipitation Trends in Si Sa Ket

The chart displays monthly precipitation patterns in Si Sa Ket, 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 Sa Ket, September typically receives around 289 mm (11.4 inches) of precipitation spread over approximately 24 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 Si Sa Ket

In Si Sa Ket 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 Si Sa Ket

This chart illustrates the average monthly humidity levels in Si Sa Ket, 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 Sa Ket is approximately 89%, 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 Si Sa Ket

In Si Sa Ket 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 Si Sa Ket.

Maximum UV Index Levels in Si Sa Ket for September

The chart shows the monthly maximum UV Index (UVI) for Si Sa Ket 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 Sa Ket typically reaches 13, which falls under the extreme exposure category.

Data source: Si Sa Ket 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 Sa Ket Compares to Other Months

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

This table compares monthly weather conditions in Si Sa Ket, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	4 mm (0.2 inches)	56%	very high
February Weather	26°C (79°F)	9 mm (0.4 inches)	50%	extreme
March Weather	29°C (85°F)	26 mm (1.0 inches)	41%	extreme
April Weather	30°C (86°F)	59 mm (2.3 inches)	44%	extreme
May Weather	30°C (86°F)	137 mm (5.4 inches)	71%	extreme
June Weather	29°C (85°F)	123 mm (4.9 inches)	83%	extreme
July Weather	29°C (84°F)	209 mm (8.2 inches)	87%	extreme
August Weather	28°C (83°F)	201 mm (7.9 inches)	90%	extreme
September Weather	28°C (83°F)	289 mm (11.4 inches)	89%	extreme
October Weather	27°C (81°F)	171 mm (6.7 inches)	83%	extreme
November Weather	26°C (80°F)	44 mm (1.7 inches)	74%	very high
December Weather	25°C (77°F)	11 mm (0.4 inches)	68%	very high