Somerset County (Bridgewater)
September
Weather in Somerset County, New Jersey for September 2026
Your guide to Somerset County weather in September - trends and predictions
Coastal Flood Warning - See hour by hour.
So far, September 2026 in Somerset County is slightly warmer than the historical average by 0.7 °F.
The forecast for the next days in Somerset County predicts temperatures to be around 19 °F, close to the historical average.
In general, the average temperature in Somerset County at the beginning of September is 26.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °F by the end of September.
The climate of Somerset County in September is notably wet, with an average of 14 rainy days, and a total of 175.5 mm of precipitation.
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16
Dry days
14
Rainy days
0
Snow days
24°/15°
Temperatures
13 km/h
Avg max wind
72 %
Avg humidity
Somerset County Weather September
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Temperatures trend during September in Somerset County
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September weather in Somerset County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Heavy rain at times | 29° /19° | 3.3 mm | 5 | |
| Sept. 2 |  Patchy rain possible | 25° /17° | 0.9 mm | 5 | |
| Sept. 3 |  Sunny | 27° /14° | 4.5 mm | 4 | |
| Sept. 4 | Sunny | 27° /16° | 0.7 mm | 7 | |
| Sept. 5 | Sunny | 27° /16° | 23.2 mm | 7 | |
| Sept. 6 |  Overcast | 28° /17° | 4.3 mm | 7 | |
| Sept. 7 |  Moderate or heavy rain shower | 23° /13° | 34.9 mm | 5 | |
| Sept. 8 | Sunny | 25° /11° | 0 mm | 6 | |
| Sept. 9 |  Partly cloudy | 25° /13° | 0 mm | 5 | |
| Sept. 10 | Sunny | 26° /16° | 0.4 mm | 5 | |
| Sept. 11 | Sunny | 27° /15° | 0 mm | 7 | |
| Sept. 12 | Sunny | 27° /14° | 0 mm | 7 | |
| Sept. 13 | Sunny | 26° /16° | 12.8 mm | 5 | |
| Sept. 14 | Sunny | 27° /15° | 0 mm | 7 | |
| Sept. 15 | Patchy rain possible | 25° /14° | 0.1 mm | 6 | |
| Sept. 16 | Partly cloudy | 25° /14° | 0 mm | 6 | |
| Sept. 17 | Overcast | 25° /16° | 1.3 mm | 5 | |
| Sept. 18 | Patchy rain possible | 25° /17° | 0.7 mm | 6 | |
| Sept. 19 | Overcast | 25° /15° | 0.9 mm | 5 | |
| Sept. 20 | Patchy rain possible | 22° /15° | 4.9 mm | 4 | |
| Sept. 21 | Overcast | 23° /15° | 0.6 mm | 4 | |
| Sept. 22 | Overcast | 22° /13° | 0.7 mm | 4 | |
| Sept. 23 | Moderate rain at times | 21° /14° | 1.1 mm | 4 | |
| Sept. 24 | Overcast | 22° /13° | 0.9 mm | 5 | |
| Sept. 25 | Moderate rain at times | 21° /15° | 16.3 mm | 3 | |
| Sept. 26 | Heavy rain at times | 26° /18° | 11.1 mm | 6 | |
| Sept. 27 | Light rain shower | 16° /13° | 39.3 mm | 0.5 | |
| Sept. 28 | Light rain shower | 16° /13° | 11.8 mm | 0.3 | |
| Sept. 29 | Patchy rain possible | 19° /13° | 0.2 mm | 3.2 | |
| Sept. 30 | Overcast | 24° /16° | 0 mm | 5.5 | |
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Important Notice
Our weather forecast for Somerset County 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 Somerset County forecast closer to your planned date for the most up-to-date weather information.
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Somerset County in September - FAQ
What are the expected maximum and minimum temperatures in Somerset County during September?
During September, expect a variety of temperatures with highs around 24° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Somerset County during September?
Significant rainfall exceeding 175.5 mm is expected in Somerset County during September, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Somerset County during September?
The average wind speed in Somerset County during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Somerset County
Explore the daily rainfall trends and prepare for Somerset Countys September weather 💧
Typically, Somerset County has 14 rainy days in September with a total of 175.5 mm of rainfall.
UV exposure in Somerset County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Somerset County?Get accurate weather forecasts for Somerset County, located at latitude 40.601 and longitude -74.648. Stay updated with localized weather information tailored for Somerset County.
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