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September Weather in New Bedford, United States

Last updated: June 24, 2025

In September, the average temperature in New Bedford, United States hovers around 19°C (67°F). Expect lows of 4°C (39°F) and highs reaching up to 33°C (92°F). With an average humidity of 77%, the air can feel quite moist. Be prepared for some rainfall, as you'll likely encounter around 111 mm (4.4 in) of precipitation over approximately 9 days.

September Temperature in New Bedford

In September in New Bedford, the average temperature is 19°C (67°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 4°C (39°F). This diverse range of temperatures makes New Bedford a suitable destination for travelers seeking both warm and cooler weather experiences.

September Weather in New Bedford: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Bedford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Bedford, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec293340506169747267564135
Data source: Temperature data for New Bedford 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 New Bedford

In New Bedford in September, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

September Precipitation Trends in New Bedford

The chart displays monthly precipitation patterns in New Bedford, 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 New Bedford, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec92102107134130132133971111209797
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Bedford

In New Bedford 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 New Bedford

This chart illustrates the average monthly humidity levels in New Bedford, 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 New Bedford 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 New Bedford

In New Bedford 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 New Bedford.

Maximum UV Index Levels in New Bedford for September

The chart shows the monthly maximum UV Index (UVI) for New Bedford 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 New Bedford typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: New Bedford 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 New Bedford Compares to Other Months

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

This table compares monthly weather conditions in New Bedford, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (30°F)92 mm (3.6 inches)88%moderate
February Weather0°C (33°F)102 mm (4.0 inches)88%moderate
March Weather4°C (40°F)107 mm (4.2 inches)87%high
April Weather10°C (50°F)134 mm (5.3 inches)87%very high
May Weather16°C (61°F)129 mm (5.1 inches)81%very high
June Weather21°C (69°F)132 mm (5.2 inches)83%very high
July Weather23°C (74°F)133 mm (5.2 inches)82%very high
August Weather22°C (72°F)97 mm (3.8 inches)76%very high
September Weather19°C (67°F)111 mm (4.4 inches)77%very high
October Weather13°C (56°F)120 mm (4.7 inches)82%high
November Weather5°C (41°F)97 mm (3.8 inches)89%moderate
December Weather2°C (35°F)97 mm (3.8 inches)86%low

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