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September Weather in Conneaut, United States

Last updated: June 24, 2025

In Conneaut, United States, the average temperature in September hovers around 19°C (67°F), with a comfortable range between a minimum of 10°C (50°F) and a maximum of 29°C (84°F). Visitors can expect approximately 85 mm (3.4 in) of precipitation over about 10 days, contributing to an average humidity of 77%. Perfect for those who appreciate a mild, slightly moist climate!

September Temperature in Conneaut

In September in Conneaut, the average temperature is 19°C (67°F). Maximums can reach 29°C (84°F) and minimums can be as low as 10°C (50°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities in Conneaut.

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

The chart illustrates September temperature patterns in Conneaut, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Conneaut, September typically has an average temperature of 19°C (67°F), with highs reaching up to 29°C (84°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec293036445566737267574336
Data source: Temperature data for Conneaut 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 Conneaut

In Conneaut in September, the precipitation amount is 85 mm (3.4 in) over the course of 10 days.

September Precipitation Trends in Conneaut

The chart displays monthly precipitation patterns in Conneaut, 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 Conneaut, September typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10210099113112911208685143132123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Conneaut

In Conneaut in September, humidity is 77%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel slightly more challenging as the air clings to your skin, turning every step into a leisurely stroll through a sauna.

September Average Humidity in Conneaut

This chart illustrates the average monthly humidity levels in Conneaut, 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 Conneaut 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 Conneaut

In Conneaut 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 Conneaut.

Maximum UV Index Levels in Conneaut for September

The chart shows the monthly maximum UV Index (UVI) for Conneaut 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 Conneaut typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Conneaut 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 Conneaut Compares to Other Months

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

This table compares monthly weather conditions in Conneaut, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)102 mm (4.0 inches)88%moderate
February Weather-1°C (31°F)100 mm (4.0 inches)88%moderate
March Weather2°C (36°F)99 mm (3.9 inches)87%high
April Weather7°C (44°F)113 mm (4.5 inches)87%very high
May Weather13°C (55°F)112 mm (4.4 inches)81%very high
June Weather19°C (66°F)91 mm (3.6 inches)83%very high
July Weather23°C (73°F)120 mm (4.7 inches)82%very high
August Weather22°C (72°F)86 mm (3.4 inches)76%very high
September Weather19°C (67°F)85 mm (3.4 inches)77%very high
October Weather14°C (57°F)143 mm (5.6 inches)82%high
November Weather6°C (43°F)132 mm (5.2 inches)89%moderate
December Weather2°C (36°F)123 mm (4.9 inches)86%low

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