September Weather in Lahan Sai, Thailand

Last updated: August 27, 2025

In September, the average temperature in Lahan Sai, Thailand hovers around 28°C (82°F), with a minimum of 23°C (73°F) and a maximum reaching 36°C (97°F). Visitors should be prepared for significant precipitation, with an average of 212 mm (8.4 in) spread over 22 days. The atmosphere is notably humid, boasting an average humidity level of 89%.

September Temperature in Lahan Sai

In September in Lahan Sai, the average temperature is 28°C (82°F). Maximums can reach 36°C (97°F), while minimums can drop to as low as 23°C (73°F). This pleasant weather makes Lahan Sai an ideal destination for travelers seeking warm and enjoyable conditions.

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

The chart illustrates September temperature patterns in Lahan Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lahan Sai, September typically has an average temperature of 28°C (82°F), with highs reaching up to 36°C (97°F) and lows dropping to around 23°C (73°F).

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

September Precipitation in Lahan Sai

In Lahan Sai in September, the total precipitation amount is 212 mm (8.4 in) spread over 22 days.

September Precipitation Trends in Lahan Sai

The chart displays monthly precipitation patterns in Lahan 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 Lahan Sai, September typically receives around 212 mm (8.4 inches) of precipitation spread over approximately 22 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 Lahan Sai

In Lahan Sai in September humidity is 89%. With an average temperature of 28°C (82°F), this humidity feels like a thick, warm blanket enveloping you, making every step feel slightly heavier and the air dense, which can be quite stifling for traveling.

September Average Humidity in Lahan Sai

This chart illustrates the average monthly humidity levels in Lahan 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 Lahan Sai 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 Lahan Sai

In Lahan 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 Lahan Sai, you can check here.

Maximum UV Index Levels in Lahan Sai for September

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

Data source: Lahan 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 Lahan Sai Compares to Other Months

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

This table compares monthly weather conditions in Lahan Sai, 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)	6 mm (0.3 inches)	56%	very high
February Weather	26°C (80°F)	15 mm (0.6 inches)	50%	extreme
March Weather	29°C (85°F)	36 mm (1.4 inches)	41%	extreme
April Weather	29°C (84°F)	90 mm (3.6 inches)	44%	extreme
May Weather	29°C (84°F)	162 mm (6.4 inches)	71%	extreme
June Weather	29°C (84°F)	98 mm (3.9 inches)	83%	extreme
July Weather	28°C (83°F)	153 mm (6.0 inches)	87%	extreme
August Weather	28°C (83°F)	157 mm (6.2 inches)	90%	extreme
September Weather	28°C (82°F)	212 mm (8.4 inches)	89%	extreme
October Weather	27°C (81°F)	150 mm (5.9 inches)	83%	extreme
November Weather	26°C (79°F)	44 mm (1.7 inches)	74%	extreme
December Weather	24°C (76°F)	12 mm (0.5 inches)	68%	very high