September Weather in Green, United States

Last updated: June 24, 2025

The average temperature in Green, United States during September is a pleasant 17°C (63°F). However, temperatures can vary significantly, with minimums dipping to 2°C (37°F) and maximums soaring up to 38°C (100°F). Visitors can expect an average precipitation of 64 mm (2.5 in) spread over 6 days, accompanied by a comfortable average humidity of 66%.

September Temperature in Green

In September in Green, the average temperature is 17°C (63°F), with highs reaching up to 38°C (100°F) and lows dipping as low as 2°C (37°F). It's advisable to pack for a range of temperatures to ensure comfort during your travels.

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

The chart illustrates September temperature patterns in Green, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Green, September typically has an average temperature of 17°C (63°F), with highs reaching up to 38°C (100°F) and lows dropping to around 2°C (37°F).

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

September Precipitation in Green

In Green in September, the total precipitation amount is 64 mm (2.5 in) during a span of 6 days.

September Precipitation Trends in Green

The chart displays monthly precipitation patterns in Green, 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 Green, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 6 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 Green

In Green in September, humidity is 66%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making travel refreshing yet slightly muggy, perfect for leisurely strolls or picturesque outdoor explorations, but travelers should be prepared for occasional discomfort as they navigate the vibrant sights.

September Average Humidity in Green

This chart illustrates the average monthly humidity levels in Green, 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 Green is approximately 66%, 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 Green

In Green in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Green.

Maximum UV Index Levels in Green for September

The chart shows the monthly maximum UV Index (UVI) for Green 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 Green typically reaches 8, which falls under the very high exposure category.

Data source: Green 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 Green Compares to Other Months

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

This table compares monthly weather conditions in Green, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	146 mm (5.7 inches)	84%	moderate
February Weather	5°C (41°F)	188 mm (7.4 inches)	85%	moderate
March Weather	7°C (45°F)	129 mm (5.1 inches)	86%	high
April Weather	10°C (50°F)	121 mm (4.8 inches)	83%	very high
May Weather	13°C (56°F)	64 mm (2.5 inches)	83%	very high
June Weather	17°C (62°F)	32 mm (1.3 inches)	83%	very high
July Weather	20°C (68°F)	2 mm (0.1 inches)	78%	very high
August Weather	20°C (68°F)	7 mm (0.3 inches)	67%	very high
September Weather	17°C (63°F)	64 mm (2.5 inches)	66%	very high
October Weather	11°C (53°F)	75 mm (3.0 inches)	77%	high
November Weather	7°C (46°F)	116 mm (4.6 inches)	87%	moderate
December Weather	4°C (40°F)	153 mm (6.0 inches)	87%	low