September Weather in Khun Han, Thailand

Last updated: August 27, 2025

In Khun Han, Thailand, the average temperature in September hovers around 27°C (80°F), with lows dipping to 22°C (73°F) and highs reaching up to 33°C (92°F). Expect a precipitation of 360 mm (14.2 in) spread over 28 days, contributing to the region's lush scenery. With an average humidity of 89%, the atmosphere feels quite tropical, making this a uniquely vibrant time of year!

September Temperature in Khun Han

In September in Khun Han, the average temperature is 27°C (80°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 22°C (73°F). This pleasant climate makes it an ideal time for travelers to explore the beautiful surroundings and enjoy outdoor activities.

September Weather in Khun Han: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Khun Han, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Khun Han, September typically has an average temperature of 27°C (80°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (73°F).

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

September Precipitation in Khun Han

In Khun Han in September, the total precipitation amount is 360 mm (14.2 in) over the course of 28 days.

September Precipitation Trends in Khun Han

The chart displays monthly precipitation patterns in Khun Han, 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 Khun Han, September typically receives around 360 mm (14.2 inches) of precipitation spread over approximately 28 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 Khun Han

In Khun Han in September humidity is 89%. With an average temperature of 27°C (80°F), this humidity feels like a warm, sticky embrace, making travel feel heavy and reminiscent of a sauna, where even the slightest exertion can leave you feeling drenched and yearning for a cool breeze.

September Average Humidity in Khun Han

This chart illustrates the average monthly humidity levels in Khun Han, 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 Khun Han 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 Khun Han

In Khun Han 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 Khun Han, you can check here.

Maximum UV Index Levels in Khun Han for September

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

Data source: Khun Han 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 Khun Han Compares to Other Months

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

This table compares monthly weather conditions in Khun Han, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	6 mm (0.2 inches)	56%	very high
February Weather	25°C (77°F)	10 mm (0.4 inches)	50%	extreme
March Weather	27°C (82°F)	73 mm (2.9 inches)	41%	extreme
April Weather	28°C (82°F)	110 mm (4.3 inches)	44%	extreme
May Weather	28°C (82°F)	203 mm (8.0 inches)	71%	extreme
June Weather	28°C (82°F)	213 mm (8.4 inches)	83%	extreme
July Weather	27°C (80°F)	287 mm (11.3 inches)	87%	extreme
August Weather	27°C (80°F)	289 mm (11.4 inches)	90%	extreme
September Weather	27°C (80°F)	360 mm (14.2 inches)	89%	extreme
October Weather	26°C (79°F)	212 mm (8.4 inches)	83%	extreme
November Weather	25°C (78°F)	72 mm (2.8 inches)	74%	extreme
December Weather	24°C (75°F)	22 mm (0.9 inches)	68%	very high