September Weather in Saint Pauls, United States

Last updated: June 24, 2025

In September, the average temperature in Saint Pauls, United States hovers around 24°C (76°F), creating a pleasant atmosphere for outdoor activities. However, temperatures can vary, dipping as low as 10°C (50°F) and soaring up to 35°C (96°F). Visitors should be prepared for some rain, as the area receives an average precipitation of 162 mm (6.4 in) over 9 days, all while enjoying a comfortable average humidity level of 79%.

September Temperature in Saint Pauls

In September in Saint Pauls, the average temperature is 24°C (76°F). The maximum can reach 35°C (96°F) and the minimum can be as low as 10°C (50°F). This makes it a perfect time for travelers to enjoy a variety of outdoor activities while experiencing mild and warm weather.

September Weather in Saint Pauls: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint Pauls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Pauls, September typically has an average temperature of 24°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Saint Pauls

In Saint Pauls in September, the precipitation amount is 162 mm (6.4 in) over the course of 9 days.

September Precipitation Trends in Saint Pauls

The chart displays monthly precipitation patterns in Saint Pauls, 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 Saint Pauls, September typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 9 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 Saint Pauls

In Saint Pauls in September, humidity is 79%. With an average temperature of 24°C (76°F), this humidity feels like a thick blanket wrapped around you, making traveling somewhat uncomfortable and sticky, as you navigate through the warmth while constantly seeking shade and hydration.

September Average Humidity in Saint Pauls

This chart illustrates the average monthly humidity levels in Saint Pauls, 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 Saint Pauls is approximately 79%, 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 Saint Pauls

In Saint Pauls in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Saint Pauls.

Maximum UV Index Levels in Saint Pauls for September

The chart shows the monthly maximum UV Index (UVI) for Saint Pauls 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 Saint Pauls typically reaches 9, which falls under the very high exposure category.

Data source: Saint Pauls 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 Saint Pauls Compares to Other Months

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

This table compares monthly weather conditions in Saint Pauls, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	84 mm (3.3 inches)	85%	moderate
February Weather	11°C (52°F)	90 mm (3.5 inches)	82%	high
March Weather	13°C (56°F)	69 mm (2.7 inches)	81%	very high
April Weather	18°C (64°F)	97 mm (3.8 inches)	80%	very high
May Weather	23°C (73°F)	119 mm (4.7 inches)	81%	extreme
June Weather	25°C (78°F)	126 mm (5.0 inches)	81%	extreme
July Weather	27°C (81°F)	126 mm (4.9 inches)	81%	extreme
August Weather	26°C (80°F)	144 mm (5.7 inches)	80%	very high
September Weather	24°C (76°F)	162 mm (6.4 inches)	79%	very high
October Weather	20°C (68°F)	54 mm (2.1 inches)	80%	very high
November Weather	12°C (54°F)	81 mm (3.2 inches)	85%	high
December Weather	10°C (50°F)	118 mm (4.6 inches)	86%	moderate