September Weather in Dan Sai, Thailand

Last updated: August 27, 2025

In September, the average temperature in Dan Sai, Thailand is a warm 26°C (78°F), with minimums dipping to 20°C (68°F) and maximums reaching up to 33°C (92°F). Expect 225 mm (8.9 in) of precipitation spread over 23 days, resulting in a humidity level of 86% that adds to the tropical feel of the season.

September Temperature in Dan Sai

In September in Dan Sai, the average temperature is 26°C (78°F). The maximum can reach 33°C (92°F), while the minimum can be as low as 20°C (68°F). This mild and pleasant climate makes Dan Sai an ideal destination for travelers looking to enjoy warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Dan Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dan Sai, September typically has an average temperature of 26°C (78°F), with highs reaching up to 33°C (92°F) and lows dropping to around 20°C (68°F).

Data source: Temperature data for Dan Sai generated using information from the Copernicus Climate Change Service.

September Precipitation in Dan Sai

In Dan Sai in September, the precipitation amount is 225 mm (8.9 in) over the course of 23 days.

September Precipitation Trends in Dan Sai

The chart displays monthly precipitation patterns in Dan Sai, 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 Dan Sai, September typically receives around 225 mm (8.9 inches) of precipitation spread over approximately 23 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 Dan Sai

In Dan Sai in September, humidity is 86%. With an average temperature of 26°C (78°F), this humidity feels like an overwhelming blanket that clings to your skin, making any outdoor activity feel more strenuous and causing you to seek shade and refreshment more often during your travels.

September Average Humidity in Dan Sai

This chart illustrates the average monthly humidity levels in Dan Sai, 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 Dan Sai is approximately 86%, 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 Dan Sai

In Dan Sai 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 Dan Sai, you can check here.

Maximum UV Index Levels in Dan Sai for September

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

Data source: Dan Sai 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 Dan Sai Compares to Other Months

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

This table compares monthly weather conditions in Dan Sai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	10 mm (0.4 inches)	52%	very high
February Weather	23°C (73°F)	11 mm (0.4 inches)	49%	extreme
March Weather	26°C (79°F)	17 mm (0.7 inches)	39%	extreme
April Weather	27°C (80°F)	73 mm (2.9 inches)	40%	extreme
May Weather	27°C (80°F)	150 mm (5.9 inches)	69%	extreme
June Weather	26°C (80°F)	187 mm (7.4 inches)	81%	extreme
July Weather	26°C (79°F)	230 mm (9.1 inches)	83%	extreme
August Weather	25°C (78°F)	288 mm (11.3 inches)	87%	extreme
September Weather	26°C (78°F)	225 mm (8.9 inches)	86%	extreme
October Weather	25°C (77°F)	133 mm (5.2 inches)	74%	extreme
November Weather	24°C (75°F)	13 mm (0.5 inches)	63%	very high
December Weather	21°C (70°F)	10 mm (0.4 inches)	57%	very high