Sussex County (Vernon Valley)
September
Weather in Sussex County, New Jersey for September 2026
Your guide to Sussex County weather in September - trends and predictions
In general, the average temperature in Sussex County at the beginning of September is 23.3 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 21 °F by the end of September.
Sussex County experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 88.7 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
22°/13°
Temperatures
13 km/h
Avg max wind
74 %
Avg humidity
Sussex County Weather September
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Temperatures trend during September in Sussex County
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September weather in Sussex County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 24° /16° | 2.5 mm | 6 | |
| Sept. 2 |  Partly cloudy | 25° /12° | 0 mm | 6 | |
| Sept. 3 |  Sunny | 22° /9° | 0 mm | 6 | |
| Sept. 4 | Sunny | 23° /12° | 0 mm | 6 | |
| Sept. 5 | Sunny | 25° /14° | 13.6 mm | 6 | |
| Sept. 6 | Patchy rain possible | 25° /15° | 2.8 mm | 6 | |
| Sept. 7 | Light rain shower | 19° /10° | 35.4 mm | 5 | |
| Sept. 8 | Sunny | 21° /8° | 0 mm | 6 | |
| Sept. 9 | Partly cloudy | 22° /9° | 0 mm | 6 | |
| Sept. 10 | Sunny | 22° /11° | 0 mm | 6 | |
| Sept. 11 | Partly cloudy | 24° /10° | 0 mm | 7 | |
| Sept. 12 | Sunny | 25° /13° | 0 mm | 6 | |
| Sept. 13 | Sunny | 25° /14° | 0 mm | 6 | |
| Sept. 14 | Partly cloudy | 28° /14° | 2.5 mm | 7 | |
| Sept. 15 |  Overcast | 24° /14° | 3.5 mm | 6 | |
| Sept. 16 | Overcast | 23° /13° | 0 mm | 5 | |
| Sept. 17 |  Mist | 21° /13° | 0 mm | 5 | |
| Sept. 18 | Fog | 23° /14° | 0 mm | 6 | |
| Sept. 19 | Overcast | 23° /16° | 0 mm | 5 | |
| Sept. 20 |  Moderate or heavy rain shower | 20° /13° | 3.1 mm | 5 | |
| Sept. 21 | Overcast | 20° /12° | 0 mm | 5 | |
| Sept. 22 | Partly cloudy | 22° /12° | 0 mm | 6 | |
| Sept. 23 | Overcast | 21° /15° | 6.2 mm | 5 | |
| Sept. 24 |  Cloudy | 21° /14° | 15.9 mm | 5 | |
| Sept. 25 |  Light rain | 19° /16° | 35.7 mm | 5 | |
| Sept. 26 | Light rain shower | 23° /16° | 23.8 mm | 5 | |
| Sept. 27 | Moderate rain at times | 22° /15° | 1.6 mm | 6 | |
| Sept. 28 | Overcast | 22° /15° | 29.6 mm | 5 | |
| Sept. 29 | Mist | 20° /13° | 0 mm | 5 | |
| Sept. 30 | Overcast | 20° /13° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Sussex 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 Sussex County forecast closer to your planned date for the most up-to-date weather information.
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Sussex County in September - FAQ
What are the expected maximum and minimum temperatures in Sussex County during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sussex County during September?
Moderate rainfall is anticipated in Sussex County during September, with a total of 88.7 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sussex County during September?
The average wind speed in Sussex County during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sussex County
Explore the daily rainfall trends and prepare for Sussex Countys September weather 💧
Typically, Sussex County has 6 rainy days in September with a total of 88.7 mm of rainfall.
UV exposure in Sussex County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Sussex County?Get accurate weather forecasts for Sussex County, located at latitude 41.237 and longitude -74.487. Stay updated with localized weather information tailored for Sussex County.
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