Westerly (RI)
September
Weather in Westerly, Rhode Island for September 2026
Your guide to Westerly weather in September - trends and predictions
In general, the average temperature in Westerly at the beginning of September is 20.9 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 21.6 °F by the end of September.
Westerly experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 117.7 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
21°/16°
Temperatures
18 km/h
Avg max wind
82 %
Avg humidity
Westerly Weather September
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Temperatures trend during September in Westerly
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September weather in Westerly day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 21° /16° | 0 mm | 6 | |
| Sept. 2 |  Cloudy | 25° /17° | 0 mm | 8 | |
| Sept. 3 |  Fog | 17° /13° | 0 mm | 2 | |
| Sept. 4 | Fog | 19° /15° | 0 mm | 1 | |
| Sept. 5 |  Moderate rain | 23° /18° | 8.6 mm | 3 | |
| Sept. 6 | Overcast | 21° /20° | 0 mm | 2 | |
| Sept. 7 |  Light rain shower | 20° /15° | 5.2 mm | 1 | |
| Sept. 8 |  Sunny | 22° /14° | 0 mm | 7 | |
| Sept. 9 |  Partly cloudy | 21° /15° | 0 mm | 7 | |
| Sept. 10 | Overcast | 19° /16° | 0 mm | 1 | |
| Sept. 11 | Sunny | 25° /15° | 0 mm | 7 | |
| Sept. 12 | Cloudy | 20° /17° | 0 mm | 6 | |
| Sept. 13 | Partly cloudy | 20° /15° | 0 mm | 6 | |
| Sept. 14 | Mist | 21° /17° | 0 mm | 2 | |
| Sept. 15 | Fog | 19° /16° | 0 mm | 2 | |
| Sept. 16 | Fog | 19° /14° | 0 mm | 3 | |
| Sept. 17 | Fog | 17° /13° | 0 mm | 2 | |
| Sept. 18 |  Heavy rain | 20° /16° | 42.9 mm | 2 | |
| Sept. 19 | Overcast | 24° /17° | 0 mm | 5 | |
| Sept. 20 | Cloudy | 20° /13° | 0 mm | 6 | |
| Sept. 21 | Overcast | 17° /14° | 0 mm | 5 | |
| Sept. 22 |  Moderate or heavy rain shower | 19° /16° | 34.5 mm | 3 | |
| Sept. 23 | Overcast | 22° /18° | 0 mm | 2 | |
| Sept. 24 | Fog | 20° /18° | 0 mm | 1 | |
| Sept. 25 | Fog | 20° /18° | 0 mm | 1 | |
| Sept. 26 | Mist | 25° /20° | 7.7 mm | 4 | |
| Sept. 27 | Partly cloudy | 22° /17° | 0 mm | 5 | |
| Sept. 28 | Moderate rain | 20° /17° | 18.8 mm | 2 | |
| Sept. 29 | Cloudy | 23° /18° | 0 mm | 5 | |
| Sept. 30 | Overcast | 21° /16° | 0 mm | 1 | |
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Important Notice
Our weather forecast for Westerly in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Westerly forecast closer to your planned date for the most up-to-date weather information.
Change Month
Westerly in September - FAQ
What are the expected maximum and minimum temperatures in Westerly during September?
During September, expect a variety of temperatures with highs around 21° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Westerly during September?
Significant rainfall exceeding 117.7 mm is expected in Westerly during September, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Westerly during September?
The average wind speed in Westerly during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Westerly
Explore the daily rainfall trends and prepare for Westerlys September weather 💧
Typically, Westerly has 6 rainy days in September with a total of 117.7 mm of rainfall.
UV exposure in Westerly during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Westerly?Get accurate weather forecasts for Westerly, located at latitude 41.378 and longitude -71.827. Stay updated with localized weather information tailored for Westerly.
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