September Weather in Arthur, United States

Last updated: June 24, 2025

In September, the average temperature in Arthur, United States hovers around 19°C (66°F). Expect a minimum of 1°C (35°F) and a potential high of 36°C (97°F). Rainfall is moderate, with about 40 mm (1.6 in) over 5 days, while humidity tends to linger at a comfortable 70%. Enjoy the diverse weather this month brings!

September Temperature in Arthur

In September in Arthur, the average temperature is 19°C (66°F). Maximum temperatures can reach as high as 36°C (97°F), while minimums can drop to as low as 1°C (35°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates September temperature patterns in Arthur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arthur, September typically has an average temperature of 19°C (66°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (35°F).

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

September Precipitation in Arthur

In Arthur in September, the precipitation amount is 40 mm (1.6 in) over the course of 5 days.

September Precipitation Trends in Arthur

The chart displays monthly precipitation patterns in Arthur, 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 Arthur, September typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 5 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 Arthur

In Arthur in September humidity is 70%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel a bit sticky and prompting frequent breaks for water as you explore the sights.

September Average Humidity in Arthur

This chart illustrates the average monthly humidity levels in Arthur, 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 Arthur is approximately 70%, 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 Arthur

In Arthur 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 Arthur.

Maximum UV Index Levels in Arthur for September

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

Data source: Arthur 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 Arthur Compares to Other Months

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

This table compares monthly weather conditions in Arthur, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	13 mm (0.5 inches)	73%	moderate
February Weather	-3°C (26°F)	19 mm (0.7 inches)	80%	moderate
March Weather	4°C (39°F)	63 mm (2.5 inches)	64%	high
April Weather	8°C (46°F)	52 mm (2.1 inches)	64%	very high
May Weather	14°C (57°F)	133 mm (5.2 inches)	76%	very high
June Weather	21°C (71°F)	59 mm (2.3 inches)	79%	extreme
July Weather	24°C (75°F)	62 mm (2.4 inches)	77%	extreme
August Weather	22°C (72°F)	46 mm (1.8 inches)	79%	very high
September Weather	19°C (66°F)	40 mm (1.6 inches)	70%	very high
October Weather	9°C (48°F)	38 mm (1.5 inches)	64%	high
November Weather	4°C (39°F)	21 mm (0.8 inches)	75%	moderate
December Weather	0°C (31°F)	20 mm (0.8 inches)	78%	moderate