September Weather in Tha Li, Thailand

Last updated: August 27, 2025

In September, the average temperature in Tha Li, Thailand is a warm 27°C (80°F), with daily highs reaching up to 34°C (93°F) and lows dipping to 21°C (71°F). Visitors can expect 215 mm (8.5 in) of precipitation spread over 24 days, contributing to an average humidity of 86%. Whether you’re looking to enjoy the warmth or prepare for some rain, this tropical blend creates a unique experience in Tha Li!

September Temperature in Tha Li

In September in Tha Li, the average temperature is 27°C (80°F), with maximums reaching up to 34°C (93°F) and minimums dipping as low as 21°C (71°F). This comfortable climate makes it an ideal time for traveling, exploring, and enjoying outdoor activities in Tha Li.

September Weather in Tha Li: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Tha Li, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tha Li, September typically has an average temperature of 27°C (80°F), with highs reaching up to 34°C (93°F) and lows dropping to around 21°C (71°F).

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

September Precipitation in Tha Li

In Tha Li in September, the total precipitation amount is 215 mm (8.5 in) spread out over 24 days.

September Precipitation Trends in Tha Li

The chart displays monthly precipitation patterns in Tha Li, 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 Tha Li, September typically receives around 215 mm (8.5 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 Tha Li

In Tha Li in September, humidity is 86%. With an average temperature of 27°C (80°F), this humidity feels like a warm, sticky blanket enveloping you, making travel feel heavy and exhausting as you navigate the sultry air.

September Average Humidity in Tha Li

This chart illustrates the average monthly humidity levels in Tha Li, 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 Tha Li 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 Tha Li

In Tha Li 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 Tha Li, you can check here.

Maximum UV Index Levels in Tha Li for September

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

Data source: Tha Li 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 Tha Li Compares to Other Months

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

This table compares monthly weather conditions in Tha Li, 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)	8 mm (0.3 inches)	52%	very high
February Weather	23°C (74°F)	15 mm (0.6 inches)	49%	extreme
March Weather	27°C (80°F)	32 mm (1.2 inches)	39%	extreme
April Weather	27°C (81°F)	110 mm (4.3 inches)	40%	extreme
May Weather	28°C (82°F)	177 mm (7.0 inches)	69%	extreme
June Weather	28°C (82°F)	184 mm (7.2 inches)	81%	extreme
July Weather	27°C (81°F)	193 mm (7.6 inches)	83%	extreme
August Weather	27°C (81°F)	262 mm (10.3 inches)	87%	extreme
September Weather	27°C (80°F)	215 mm (8.5 inches)	86%	extreme
October Weather	26°C (79°F)	135 mm (5.3 inches)	74%	extreme
November Weather	24°C (76°F)	15 mm (0.6 inches)	63%	very high
December Weather	21°C (71°F)	10 mm (0.4 inches)	57%	very high