September Weather in Roseland, United States

Last updated: June 24, 2025

In September, the average temperature in Roseland, United States is a warm 28°C (82°F). Temperatures can dip to a minimum of 21°C (70°F) and soar to a maximum of 35°C (95°F). Expect a wet month with 181 mm (7.1 in) of precipitation spread over 23 days, and maintain your comfort as you embrace the high average humidity of 83%.

September Temperature in Roseland

In September, in Roseland, the average temperature is 28°C (82°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 21°C (70°F). It's an ideal time to enjoy outdoor activities and experience the vibrant culture of Roseland.

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

The chart illustrates September temperature patterns in Roseland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roseland, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 21°C (70°F).

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

September Precipitation in Roseland

In Roseland in September, the total precipitation amount is 181 mm (7.1 in) distributed over 23 days.

September Precipitation Trends in Roseland

The chart displays monthly precipitation patterns in Roseland, 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 Roseland, September typically receives around 181 mm (7.1 inches) of precipitation spread over approximately 23 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 Roseland

In Roseland in September humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

September Average Humidity in Roseland

This chart illustrates the average monthly humidity levels in Roseland, 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 Roseland is approximately 83%, 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 Roseland

In Roseland in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Roseland.

Maximum UV Index Levels in Roseland for September

The chart shows the monthly maximum UV Index (UVI) for Roseland 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 Roseland typically reaches 11, which falls under the extreme exposure category.

Data source: Roseland 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 Roseland Compares to Other Months

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

This table compares monthly weather conditions in Roseland, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	33 mm (1.3 inches)	83%	high
February Weather	21°C (70°F)	49 mm (1.9 inches)	80%	very high
March Weather	22°C (71°F)	23 mm (0.9 inches)	75%	very high
April Weather	24°C (75°F)	69 mm (2.7 inches)	68%	extreme
May Weather	26°C (79°F)	123 mm (4.9 inches)	65%	extreme
June Weather	27°C (82°F)	215 mm (8.4 inches)	73%	extreme
July Weather	28°C (83°F)	246 mm (9.7 inches)	77%	extreme
August Weather	28°C (83°F)	250 mm (9.8 inches)	80%	extreme
September Weather	28°C (82°F)	181 mm (7.1 inches)	83%	extreme
October Weather	26°C (80°F)	110 mm (4.3 inches)	83%	very high
November Weather	22°C (73°F)	56 mm (2.2 inches)	83%	high
December Weather	20°C (68°F)	48 mm (1.9 inches)	84%	moderate