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September Weather in Sinclairville, United States

Last updated: June 24, 2025

In September, the average temperature in Sinclairville, United States hovers around 17°C (63°F). Expect a range of 3°C (38°F) as the minimum and peaking at 31°C (88°F) for those warmer days. Be prepared for some rain, with average precipitation hitting 90 mm (3.5 in) over approximately 11 days, all while experiencing an average humidity level of 76%.

September Temperature in Sinclairville

In September in Sinclairville, the average temperature is 17°C (63°F). Maximum temperatures can reach 31°C (88°F), while minimum temperatures can drop as low as 3°C (38°F). It's a great time to visit Sinclairville, as the weather is mild and suitable for various outdoor activities.

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

The chart illustrates September temperature patterns in Sinclairville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sinclairville, September typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec262834455766716963533832
Data source: Temperature data for Sinclairville 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 Sinclairville

In Sinclairville in September, the total precipitation amounts to 90 mm (3.5 in) over the course of 11 days.

September Precipitation Trends in Sinclairville

The chart displays monthly precipitation patterns in Sinclairville, 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 Sinclairville, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10310810312813014716411890153132124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sinclairville

In Sinclairville in September humidity is 76%. With an average temperature of 17°C (63°F), this humidity feels like traveling through a warm, enveloping blanket, making every outdoor adventure feel sticky and heavy, yet pleasantly refreshing when you find a cool breeze.

September Average Humidity in Sinclairville

This chart illustrates the average monthly humidity levels in Sinclairville, 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 Sinclairville is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sinclairville

In Sinclairville 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 Sinclairville.

Maximum UV Index Levels in Sinclairville for September

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

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

This table compares monthly weather conditions in Sinclairville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)103 mm (4.1 inches)91%moderate
February Weather-2°C (28°F)108 mm (4.2 inches)91%moderate
March Weather1°C (35°F)103 mm (4.0 inches)88%high
April Weather7°C (45°F)127 mm (5.0 inches)88%very high
May Weather14°C (58°F)130 mm (5.1 inches)82%very high
June Weather19°C (66°F)147 mm (5.8 inches)79%very high
July Weather21°C (71°F)164 mm (6.4 inches)77%very high
August Weather20°C (69°F)118 mm (4.6 inches)72%very high
September Weather17°C (63°F)90 mm (3.5 inches)76%very high
October Weather12°C (53°F)153 mm (6.0 inches)83%high
November Weather3°C (38°F)132 mm (5.2 inches)88%moderate
December Weather0°C (32°F)124 mm (4.9 inches)87%low

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