September Weather in Si Songkhram, Thailand

Last updated: August 27, 2025

In September, the average temperature in Si Songkhram, Thailand is a delightful 28°C (82°F). Visitors can expect a comfortable range, with minimums of 21°C (71°F) and maximums soaring to 35°C (95°F). However, be prepared for some rain, as the region experiences 292 mm (11.5 in) of precipitation over 23 days. With an average humidity of 86%, it’s a perfect time to stay hydrated and enjoy the vibrant atmosphere!

September Temperature in Si Songkhram

In September in Si Songkhram, the average temperature is 28°C (82°F), with maximums reaching up to 35°C (95°F) and minimums dropping to as low as 21°C (71°F). This favorable climate makes Si Songkhram an ideal destination for travelers looking to enjoy warm and pleasant weather.

September Weather in Si Songkhram: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Si Songkhram, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Songkhram, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 21°C (71°F).

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

September Precipitation in Si Songkhram

In Si Songkhram in September, the total precipitation amount is 292 mm (11.5 in) spread over 23 days.

September Precipitation Trends in Si Songkhram

The chart displays monthly precipitation patterns in Si Songkhram, 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 Si Songkhram, September typically receives around 292 mm (11.5 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 Si Songkhram

In Si Songkhram 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 Si Songkhram

This chart illustrates the average monthly humidity levels in Si Songkhram, 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 Si Songkhram 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 Si Songkhram

In Si Songkhram 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 Si Songkhram, you can check here.

Maximum UV Index Levels in Si Songkhram for September

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

Data source: Si Songkhram 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 Si Songkhram Compares to Other Months

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

This table compares monthly weather conditions in Si Songkhram, 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 (73°F)	9 mm (0.3 inches)	59%	very high
February Weather	23°C (74°F)	15 mm (0.6 inches)	54%	extreme
March Weather	27°C (81°F)	41 mm (1.6 inches)	45%	extreme
April Weather	28°C (83°F)	61 mm (2.4 inches)	40%	extreme
May Weather	29°C (84°F)	202 mm (7.9 inches)	65%	extreme
June Weather	28°C (83°F)	337 mm (13.3 inches)	82%	extreme
July Weather	28°C (82°F)	527 mm (20.7 inches)	90%	extreme
August Weather	27°C (82°F)	509 mm (20.1 inches)	92%	extreme
September Weather	28°C (82°F)	292 mm (11.5 inches)	86%	extreme
October Weather	27°C (81°F)	123 mm (4.8 inches)	80%	extreme
November Weather	25°C (77°F)	17 mm (0.7 inches)	72%	very high
December Weather	22°C (72°F)	5 mm (0.2 inches)	66%	very high