September Weather in Mayer, United States

Last updated: June 24, 2025

In September, the average temperature in Mayer, United States hovers around 18°C (64°F), but expect a range from a refreshing 2°C (36°F) to a warm 33°C (91°F). With an average humidity of 81%, the air can feel quite damp. Prepare for 109 mm (4.3 in) of precipitation spread over about 10 days, so don’t forget your umbrella!

September Temperature in Mayer

In September in Mayer, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 2°C (36°F). This makes Mayer a great destination for travelers looking to experience a range of temperatures, from warm days to cooler nights.

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

The chart illustrates September temperature patterns in Mayer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mayer, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Mayer

In Mayer in September, the precipitation amount is 109 mm (4.3 in) spread over 10 days.

September Precipitation Trends in Mayer

The chart displays monthly precipitation patterns in Mayer, 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 Mayer, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 10 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 Mayer

In Mayer in September, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

September Average Humidity in Mayer

This chart illustrates the average monthly humidity levels in Mayer, 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 Mayer is approximately 81%, 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 Mayer

In Mayer in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Mayer.

Maximum UV Index Levels in Mayer for September

The chart shows the monthly maximum UV Index (UVI) for Mayer 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 Mayer typically reaches 7, which falls under the high exposure category.

Data source: Mayer 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 Mayer Compares to Other Months

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

This table compares monthly weather conditions in Mayer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	24 mm (0.9 inches)	87%	low
February Weather	-9°C (16°F)	28 mm (1.1 inches)	90%	moderate
March Weather	0°C (32°F)	55 mm (2.2 inches)	85%	moderate
April Weather	6°C (43°F)	81 mm (3.2 inches)	84%	high
May Weather	15°C (59°F)	113 mm (4.5 inches)	78%	very high
June Weather	22°C (72°F)	82 mm (3.2 inches)	80%	very high
July Weather	23°C (74°F)	97 mm (3.8 inches)	81%	very high
August Weather	21°C (71°F)	153 mm (6.0 inches)	81%	very high
September Weather	18°C (64°F)	109 mm (4.3 inches)	81%	high
October Weather	9°C (48°F)	101 mm (4.0 inches)	84%	moderate
November Weather	0°C (33°F)	32 mm (1.2 inches)	88%	moderate
December Weather	-5°C (23°F)	42 mm (1.7 inches)	84%	low