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September Weather in North Royalton, United States

Last updated: June 24, 2025

In September, the average temperature in North Royalton, United States reaches a mild 20°C (67°F), making it a pleasant time to visit. However, be prepared for fluctuations; temperatures can dip to a minimum of 5°C (42°F) and soar to a maximum of 33°C (92°F). Visitors should also anticipate 91 mm (3.6 in) of precipitation spread across about 11 days, coupled with an average humidity of 77%. Stay comfortable and ready for a range of weather conditions!

September Temperature in North Royalton

In September in North Royalton, the average temperature is 20°C (67°F). Maximums can reach 33°C (92°F) and minimums can drop as low as 5°C (42°F). This varied climate makes North Royalton an ideal destination for travelers seeking both warmth and cooler moments throughout their visit.

September Weather in North Royalton: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in North Royalton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Royalton, September typically has an average temperature of 20°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec293239496170747267564135
Data source: Temperature data for North Royalton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in North Royalton

In North Royalton in September, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.

September Precipitation Trends in North Royalton

The chart displays monthly precipitation patterns in North Royalton, 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 North Royalton, September typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec839498125126153144111911109492
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in North Royalton

In North Royalton in September, humidity is 77%. With an average temperature of 20°C (67°F), this humidity feels like a thick, warm blanket wrapping around you, making travel uncomfortable and sticky, and often leading to a quick need for shade or refreshing drinks.

September Average Humidity in North Royalton

This chart illustrates the average monthly humidity levels in North Royalton, 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 North Royalton is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in North Royalton

In North Royalton 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 North Royalton.

Maximum UV Index Levels in North Royalton for September

The chart shows the monthly maximum UV Index (UVI) for North Royalton 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 North Royalton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: North Royalton 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 North Royalton Compares to Other Months

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

This table compares monthly weather conditions in North Royalton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)83 mm (3.3 inches)88%moderate
February Weather0°C (32°F)94 mm (3.7 inches)88%moderate
March Weather4°C (40°F)98 mm (3.9 inches)87%high
April Weather10°C (50°F)125 mm (4.9 inches)87%very high
May Weather16°C (62°F)126 mm (5.0 inches)81%very high
June Weather21°C (70°F)153 mm (6.0 inches)83%very high
July Weather24°C (75°F)144 mm (5.7 inches)82%very high
August Weather22°C (72°F)111 mm (4.4 inches)76%very high
September Weather20°C (67°F)91 mm (3.6 inches)77%very high
October Weather14°C (57°F)110 mm (4.3 inches)82%high
November Weather5°C (42°F)94 mm (3.7 inches)89%moderate
December Weather2°C (35°F)92 mm (3.6 inches)86%low

Compare North Royalton's Climate with Cities Worldwide