September Weather in Portageville, United States

Last updated: June 24, 2025

The average temperature in Portageville, United States during September is a pleasant 23°C (74°F). Expect temperatures to fluctuate, with a minimum of 9°C (49°F) and a maximum of 35°C (96°F). Be prepared for some rain, as precipitation averages 83 mm (3.3 in) over 8 days. Overall, the atmosphere is quite humid, with an average humidity of 75%.

September Temperature in Portageville

In September in Portageville, the average temperature is 23°C (74°F). Maximums can reach 35°C (96°F) and minimums can be as low as 9°C (49°F). It’s a great time to explore Portageville, so pack accordingly to enjoy a range of outdoor activities!

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

The chart illustrates September temperature patterns in Portageville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portageville, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (96°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in Portageville

In Portageville in September, the precipitation amount reaches 83 mm (3.3 in) over the course of 8 days.

September Precipitation Trends in Portageville

The chart displays monthly precipitation patterns in Portageville, 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 Portageville, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 8 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 Portageville

In Portageville in September, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

September Average Humidity in Portageville

This chart illustrates the average monthly humidity levels in Portageville, 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 Portageville is approximately 75%, 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 Portageville

In Portageville 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 Portageville.

Maximum UV Index Levels in Portageville for September

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

Data source: Portageville 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 Portageville Compares to Other Months

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

This table compares monthly weather conditions in Portageville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	108 mm (4.3 inches)	86%	moderate
February Weather	5°C (42°F)	151 mm (5.9 inches)	84%	high
March Weather	11°C (52°F)	174 mm (6.9 inches)	84%	high
April Weather	15°C (59°F)	151 mm (6.0 inches)	80%	very high
May Weather	21°C (70°F)	127 mm (5.0 inches)	82%	very high
June Weather	25°C (78°F)	103 mm (4.1 inches)	83%	extreme
July Weather	27°C (81°F)	93 mm (3.7 inches)	79%	extreme
August Weather	26°C (78°F)	104 mm (4.1 inches)	76%	very high
September Weather	23°C (74°F)	83 mm (3.3 inches)	75%	very high
October Weather	17°C (63°F)	115 mm (4.5 inches)	74%	high
November Weather	9°C (48°F)	102 mm (4.0 inches)	85%	moderate
December Weather	7°C (44°F)	101 mm (4.0 inches)	88%	moderate