September Weather in Phanom Thuan, Thailand

Last updated: August 27, 2025

In September, the average temperature in Phanom Thuan, Thailand hovers around 29°C (84°F), with a minimum of 24°C (76°F) and occasionally reaching a sweltering 38°C (100°F). This month also brings about 240 mm (9.4 in) of rainfall spread over 23 days, resulting in an average humidity of 86%—so be prepared for a warm and humid experience!

September Temperature in Phanom Thuan

In September in Phanom Thuan, the average temperature is 29°C (84°F). Maximum temperatures can reach 38°C (100°F), while the minimum can drop to as low as 24°C (76°F). Be prepared for warm weather and stay hydrated while exploring the beautiful sights!

September Weather in Phanom Thuan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Phanom Thuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phanom Thuan, September typically has an average temperature of 29°C (84°F), with highs reaching up to 38°C (100°F) and lows dropping to around 24°C (76°F).

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

September Precipitation in Phanom Thuan

In Phanom Thuan in September, the precipitation amount is 240 mm (9.4 in), spread over 23 days.

September Precipitation Trends in Phanom Thuan

The chart displays monthly precipitation patterns in Phanom Thuan, 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 Phanom Thuan, September typically receives around 240 mm (9.4 inches) of precipitation spread over approximately 23 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Phanom Thuan

In Phanom Thuan in September, humidity is 86%. With an average temperature of 29°C (84°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel stifling and sweat-inducing, which can be challenging for travelers looking to explore.

September Average Humidity in Phanom Thuan

This chart illustrates the average monthly humidity levels in Phanom Thuan, 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 Phanom Thuan 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 Phanom Thuan

In Phanom Thuan 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 Phanom Thuan, you can check here.

Maximum UV Index Levels in Phanom Thuan for September

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

Data source: Phanom Thuan 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 Phanom Thuan Compares to Other Months

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

This table compares monthly weather conditions in Phanom Thuan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	18 mm (0.7 inches)	53%	extreme
February Weather	28°C (83°F)	13 mm (0.5 inches)	54%	extreme
March Weather	30°C (87°F)	31 mm (1.2 inches)	56%	extreme
April Weather	31°C (88°F)	95 mm (3.8 inches)	65%	extreme
May Weather	31°C (87°F)	153 mm (6.0 inches)	77%	extreme
June Weather	30°C (87°F)	115 mm (4.5 inches)	86%	extreme
July Weather	29°C (85°F)	136 mm (5.4 inches)	89%	extreme
August Weather	29°C (85°F)	161 mm (6.3 inches)	89%	extreme
September Weather	29°C (84°F)	240 mm (9.4 inches)	86%	extreme
October Weather	28°C (83°F)	201 mm (7.9 inches)	78%	extreme
November Weather	28°C (82°F)	59 mm (2.3 inches)	69%	very high
December Weather	27°C (80°F)	16 mm (0.6 inches)	60%	very high