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September Weather in Woonsocket, United States

Last updated: June 24, 2025

In September, the average temperature in Woonsocket, United States hovers around 19°C (66°F), with minimum temperatures dipping to 4°C (40°F) and soaring up to a maximum of 34°C (94°F). Expect 8 days of rain, accumulating approximately 90 mm (3.5 in) of precipitation, all while maintaining an average humidity of 75%.

September Temperature in Woonsocket

In September in Woonsocket, the average temperature is 19°C (66°F). Maximums can reach 34°C (94°F) and minimums can be as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Woonsocket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Woonsocket, September typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec313338485968747366564334
Data source: Temperature data for Woonsocket 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 Woonsocket

In Woonsocket in September, the precipitation amount is 90 mm (3.5 in) spread over 8 days, indicating a relatively wet period for the region.

September Precipitation Trends in Woonsocket

The chart displays monthly precipitation patterns in Woonsocket, 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 Woonsocket, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec70869612610095137949014197119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Woonsocket

In Woonsocket in September humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

September Average Humidity in Woonsocket

This chart illustrates the average monthly humidity levels in Woonsocket, 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 Woonsocket is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Woonsocket

In Woonsocket 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 Woonsocket.

Maximum UV Index Levels in Woonsocket for September

The chart shows the monthly maximum UV Index (UVI) for Woonsocket 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 Woonsocket typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
Data source: Woonsocket 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 Woonsocket Compares to Other Months

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

This table compares monthly weather conditions in Woonsocket, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)70 mm (2.8 inches)84%moderate
February Weather1°C (34°F)86 mm (3.4 inches)84%moderate
March Weather4°C (39°F)96 mm (3.8 inches)82%high
April Weather9°C (49°F)126 mm (5.0 inches)79%very high
May Weather15°C (59°F)100 mm (3.9 inches)75%very high
June Weather20°C (69°F)95 mm (3.7 inches)78%very high
July Weather23°C (74°F)137 mm (5.4 inches)76%very high
August Weather23°C (73°F)94 mm (3.7 inches)76%very high
September Weather19°C (66°F)90 mm (3.5 inches)75%very high
October Weather13°C (56°F)141 mm (5.6 inches)75%high
November Weather6°C (43°F)97 mm (3.8 inches)80%moderate
December Weather1°C (35°F)119 mm (4.7 inches)80%low

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