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September Weather in Southbridge, United States

Last updated: June 24, 2025

In September, the average temperature in Southbridge, United States hovers around 18°C (65°F). Expect a wide range of temperatures, with a minimum of 3°C (38°F) and a maximum peaking at 34°C (93°F). During the month, you might experience approximately 102 mm (4.0 in) of precipitation over 9 days. Don't forget to prepare for the relatively high average humidity of 75%!

September Temperature in Southbridge

In September in Southbridge, the average temperature is 18°C (65°F). Maximums can reach 34°C (93°F), and minimums can be as low as 3°C (38°F). This makes it a great time to explore outdoor activities while being prepared for both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Southbridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Southbridge, September typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec293237475868737265554133
Data source: Temperature data for Southbridge 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 Southbridge

In Southbridge in September, the total precipitation amount is 102 mm (4.0 in) over a span of 9 days.

September Precipitation Trends in Southbridge

The chart displays monthly precipitation patterns in Southbridge, 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 Southbridge, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec71909213010599163118102143103129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Southbridge

In Southbridge in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

September Average Humidity in Southbridge

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

In Southbridge 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 Southbridge.

Maximum UV Index Levels in Southbridge for September

The chart shows the monthly maximum UV Index (UVI) for Southbridge 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 Southbridge typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Southbridge 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 Southbridge Compares to Other Months

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

This table compares monthly weather conditions in Southbridge, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)71 mm (2.8 inches)84%moderate
February Weather0°C (32°F)90 mm (3.6 inches)84%moderate
March Weather3°C (37°F)92 mm (3.6 inches)82%high
April Weather8°C (48°F)130 mm (5.1 inches)79%very high
May Weather14°C (58°F)105 mm (4.1 inches)75%very high
June Weather20°C (68°F)99 mm (3.9 inches)78%very high
July Weather23°C (74°F)163 mm (6.4 inches)76%very high
August Weather22°C (72°F)118 mm (4.7 inches)76%very high
September Weather18°C (65°F)102 mm (4.0 inches)75%very high
October Weather13°C (55°F)143 mm (5.6 inches)75%high
November Weather5°C (41°F)103 mm (4.1 inches)80%moderate
December Weather0°C (33°F)129 mm (5.1 inches)80%low

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