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September Weather in Bridgeport, United States

Last updated: June 24, 2025

In September, the average temperature in Bridgeport, United States hovers around 19°C (66°F), with a minimum dip to 1°C (34°F) and a sizzling maximum of 38°C (101°F). Expect a moderate precipitation of 22 mm (0.9 in) spread over 3 days, while the average humidity remains at a notable 75%.

September Temperature in Bridgeport

In September in Bridgeport, the average temperature is 19°C (66°F), with maximums soaring to 38°C (101°F) and minimums dipping as low as 1°C (34°F). This climate offers a versatile experience for travelers, making it ideal for both warm-weather activities and cooler evening outings.

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

The chart illustrates September temperature patterns in Bridgeport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bridgeport, September typically has an average temperature of 19°C (66°F), with highs reaching up to 38°C (101°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec302840475670767366484033
Data source: Temperature data for Bridgeport 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 Bridgeport

In Bridgeport in September, the precipitation amount is 22 mm (0.9 in) over a span of 3 days.

September Precipitation Trends in Bridgeport

The chart displays monthly precipitation patterns in Bridgeport, 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 Bridgeport, September typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec1220585011638473622382317
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bridgeport

In Bridgeport 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 Bridgeport

This chart illustrates the average monthly humidity levels in Bridgeport, 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 Bridgeport is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%76%62%60%74%82%82%84%75%73%74%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bridgeport

In Bridgeport 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 Bridgeport.

Maximum UV Index Levels in Bridgeport for September

The chart shows the monthly maximum UV Index (UVI) for Bridgeport 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 Bridgeport typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Bridgeport 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 Bridgeport Compares to Other Months

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

This table compares monthly weather conditions in Bridgeport, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)12 mm (0.5 inches)72%moderate
February Weather-2°C (28°F)20 mm (0.8 inches)76%moderate
March Weather4°C (40°F)58 mm (2.3 inches)61%high
April Weather8°C (47°F)50 mm (1.9 inches)60%very high
May Weather13°C (56°F)116 mm (4.6 inches)74%very high
June Weather21°C (71°F)38 mm (1.5 inches)82%extreme
July Weather24°C (76°F)46 mm (1.8 inches)82%extreme
August Weather23°C (73°F)36 mm (1.4 inches)84%very high
September Weather19°C (66°F)22 mm (0.9 inches)75%very high
October Weather9°C (48°F)38 mm (1.5 inches)73%high
November Weather5°C (41°F)23 mm (0.9 inches)74%moderate
December Weather0°C (33°F)17 mm (0.7 inches)77%moderate

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