September Weather in Son, Thailand

Last updated: August 27, 2025

In September, the average temperature in Son, Thailand hovers around 28°C (82°F), with daily temperatures ranging from a minimum of 25°C (78°F) to a maximum of 30°C (86°F). Visitors should be prepared for a wet month, as precipitation amounts can reach 306 mm (12.0 in) over 24 days. Coupled with this, the average humidity remains high at 84%, creating a warm and muggy atmosphere.

September Temperature in Son

In September in Son, the average temperature is 28°C (82°F), with maximums reaching 30°C (86°F) and minimums dropping to as low as 25°C (78°F). This pleasant weather makes it an ideal time for outdoor activities and exploring all that Son has to offer.

September Weather in Son: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Son, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Son, September typically has an average temperature of 28°C (82°F), with highs reaching up to 30°C (86°F) and lows dropping to around 25°C (78°F).

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

September Precipitation in Son

In Son, in September, the precipitation amount is 306 mm (12.0 in) over a span of 24 days.

September Precipitation Trends in Son

The chart displays monthly precipitation patterns in Son, 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 Son, September typically receives around 306 mm (12.0 inches) of precipitation spread over approximately 24 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 Son

In Son in September humidity is 84%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel sticky and exhausting for traveling.

September Average Humidity in Son

This chart illustrates the average monthly humidity levels in Son, 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 Son is approximately 84%, 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 Son

In Son 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 Son, you can check here.

Maximum UV Index Levels in Son for September

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

Data source: Son 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 Son Compares to Other Months

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

This table compares monthly weather conditions in Son, 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)	71 mm (2.8 inches)	76%	extreme
February Weather	28°C (82°F)	12 mm (0.5 inches)	73%	extreme
March Weather	28°C (83°F)	42 mm (1.7 inches)	74%	extreme
April Weather	28°C (83°F)	167 mm (6.6 inches)	71%	extreme
May Weather	28°C (83°F)	249 mm (9.8 inches)	72%	extreme
June Weather	28°C (83°F)	188 mm (7.4 inches)	79%	extreme
July Weather	28°C (83°F)	179 mm (7.1 inches)	79%	extreme
August Weather	28°C (83°F)	233 mm (9.2 inches)	82%	extreme
September Weather	28°C (82°F)	306 mm (12.0 inches)	84%	extreme
October Weather	27°C (82°F)	275 mm (10.8 inches)	83%	extreme
November Weather	27°C (81°F)	258 mm (10.2 inches)	84%	extreme
December Weather	27°C (81°F)	96 mm (3.8 inches)	84%	extreme