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September Weather in Clarence, United States

Last updated: June 24, 2025

In Clarence, United States, the average temperature in September hovers around 22°C (71°F). Expect a minimum of 5°C (41°F) and a maximum of 35°C (95°F), offering a pleasant range for outdoor activities. During this month, anticipate 65 mm (2.5 in) of precipitation spread over approximately 7 days, with an average humidity of 76%.

September Temperature in Clarence

In September in Clarence, the average temperature is 22°C (71°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 5°C (41°F). This diverse temperature range makes Clarence an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Clarence, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarence, September typically has an average temperature of 22°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec293144536576797571564236
Data source: Temperature data for Clarence 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 Clarence

In Clarence in September, the precipitation amount is 65 mm (2.5 in) over a span of 7 days.

September Precipitation Trends in Clarence

The chart displays monthly precipitation patterns in Clarence, 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 Clarence, September typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec61551151041911198496651115140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Clarence

In Clarence in September, humidity is 76%. With an average temperature of 22°C (71°F), this humidity feels like traveling through a warm, dense mist that clings to your skin, making every step feel heavier and the air seem thicker, which can be quite draining for outdoor activities.

September Average Humidity in Clarence

This chart illustrates the average monthly humidity levels in Clarence, 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 Clarence is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Clarence

In Clarence 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 Clarence.

Maximum UV Index Levels in Clarence for September

The chart shows the monthly maximum UV Index (UVI) for Clarence 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 Clarence typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Clarence 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 Clarence Compares to Other Months

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

This table compares monthly weather conditions in Clarence, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)61 mm (2.4 inches)82%moderate
February Weather0°C (32°F)55 mm (2.2 inches)80%moderate
March Weather7°C (45°F)115 mm (4.5 inches)80%high
April Weather12°C (53°F)104 mm (4.1 inches)80%very high
May Weather19°C (66°F)191 mm (7.5 inches)82%very high
June Weather24°C (76°F)119 mm (4.7 inches)83%extreme
July Weather26°C (79°F)84 mm (3.3 inches)81%extreme
August Weather24°C (76°F)96 mm (3.8 inches)80%very high
September Weather22°C (71°F)65 mm (2.5 inches)76%very high
October Weather14°C (57°F)111 mm (4.4 inches)76%high
November Weather6°C (42°F)51 mm (2.0 inches)85%moderate
December Weather2°C (36°F)40 mm (1.6 inches)86%moderate

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