September Weather in Nam Som, Thailand

Last updated: August 27, 2025

In September, the average temperature in Nam Som, Thailand is a warm 28°C (82°F), with minimums dipping to 22°C (72°F) and highs reaching up to 36°C (97°F). Expect heavy rainfall, with an average precipitation of 232 mm (9.1 in) over 24 days, contributing to a high humidity level of 86%. Stay cool and prepared for the tropical climate!

September Temperature in Nam Som

In September in Nam Som, the average temperature is 28°C (82°F). Maximums can reach 36°C (97°F), while minimums can drop to as low as 22°C (72°F). It's an ideal time for travelers seeking warm weather and plenty of sunshine.

September Weather in Nam Som: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nam Som, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nam Som, 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 22°C (72°F).

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

September Precipitation in Nam Som

In Nam Som in September, the total precipitation amount is 232 mm (9.1 in) spread over 24 days.

September Precipitation Trends in Nam Som

The chart displays monthly precipitation patterns in Nam Som, 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 Nam Som, September typically receives around 232 mm (9.1 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 Nam Som

In Nam Som in September, humidity is 86%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket wrapped around you, making travel quite challenging as you navigate the thick, moisture-laden air that can leave you feeling sticky and fatigued.

September Average Humidity in Nam Som

This chart illustrates the average monthly humidity levels in Nam Som, 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 Nam Som 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 Nam Som

In Nam Som 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 Nam Som, you can check here.

Maximum UV Index Levels in Nam Som for September

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

Data source: Nam Som 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 Nam Som Compares to Other Months

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

This table compares monthly weather conditions in Nam Som, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	5 mm (0.2 inches)	52%	very high
February Weather	24°C (76°F)	15 mm (0.6 inches)	49%	extreme
March Weather	28°C (82°F)	35 mm (1.4 inches)	39%	extreme
April Weather	29°C (84°F)	81 mm (3.2 inches)	40%	extreme
May Weather	29°C (84°F)	205 mm (8.1 inches)	69%	extreme
June Weather	29°C (84°F)	232 mm (9.1 inches)	81%	extreme
July Weather	28°C (83°F)	268 mm (10.5 inches)	83%	extreme
August Weather	28°C (83°F)	333 mm (13.1 inches)	87%	extreme
September Weather	28°C (82°F)	232 mm (9.1 inches)	86%	extreme
October Weather	27°C (81°F)	124 mm (4.9 inches)	74%	extreme
November Weather	26°C (78°F)	10 mm (0.4 inches)	63%	very high
December Weather	23°C (73°F)	8 mm (0.3 inches)	57%	very high