Weather in September
In Westport, September is synonymous with the onset of fall. A noticeable reduction in daylight hours confirms the departure of summer. Temperatures continue to drop, averaging highs of 72.1°F (22.3°C), signaling prominent weather changes. Autumn colors take over the city's landscape. Moderate rainfall continues to fall, contributing to the freshness of the season.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:27 pm EDT.
Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 78.6°F (25.9°C) in August to an agreeable 72.1°F (22.3°C). During September, Westport observes a consistent average nighttime temperature of 57°F (13.9°C).Rainfall
Throughout September, 3.27" (83mm) of precipitation is accumulated. Throughout the year, 43.86" (1114mm) of rain is accumulated.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:27 pm EDT.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
Westport in September has an average high-temperature of 72.1°F (22.3°C) and an average low-temperature of 57°F (13.9°C).
How much does it rain in September?
During September, Westport regularly aggregates up to 3.27" (83mm) of precipitation.
What is the average length of the day in September?
The average day length in September is 12h and 28min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:27 pm EDT.
Average temperature in September
Westport, MA
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64.8°F).
The coldest months (with the lowest average low temperature) are January and February (23.5°F).
Average rainfall in September
Westport, MA
- Average rainfall in September: 3.3"
The wettest month (with the highest rainfall) is August (4.3").
The driest month (with the least rainfall) is July (2.9").
Average daylight in September
Westport, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
Westport, Massachusetts, USA
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