Essex County (Newark)
September
Weather in Essex County, New Jersey for September 2026
Your guide to Essex County weather in September - trends and predictions
Gale Warning - See hour by hour.
So far, September 2026 in Essex County is slightly warmer than the historical average by 0.8 °F.
The forecast for the upcoming days in Essex County predicts a temperature of 20.2 °F, which is slightly above the historical average.
In general, the average temperature in Essex County at the beginning of September is 28.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °F by the end of September.
Essex County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 220 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
24°/17°
Temperatures
16 km/h
Avg max wind
69 %
Avg humidity
Essex County Weather September
Move between months or click on a day
Temperatures trend during September in Essex County
See the weather trend as well as the moving average line
September weather in Essex County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 28° /18° | 51.1 mm | 5 | |
| Sept. 2 |  Partly cloudy | 27° /17° | 0.5 mm | 5 | |
| Sept. 3 | Partly cloudy | 28° /17° | 0.9 mm | 5 | |
| Sept. 4 | Sunny | 29° /19° | 0 mm | 7 | |
| Sept. 5 | Sunny | 29° /19° | 11.6 mm | 7 | |
| Sept. 6 | Partly cloudy | 30° /20° | 14.5 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 26° /17° | 24.1 mm | 6 | |
| Sept. 8 | Sunny | 27° /15° | 1.4 mm | 7 | |
| Sept. 9 | Partly cloudy | 27° /16° | 1.8 mm | 5 | |
| Sept. 10 |  Light rain shower | 26° /18° | 1.8 mm | 5 | |
| Sept. 11 | Light rain shower | 28° /18° | 1.4 mm | 6 | |
| Sept. 12 |  Cloudy | 27° /17° | 0 mm | 7 | |
| Sept. 13 |  Moderate or heavy rain shower | 26° /18° | 23.5 mm | 5 | |
| Sept. 14 |  Overcast | 26° /17° | 0 mm | 6 | |
| Sept. 15 | Overcast | 24° /16° | 2.9 mm | 6 | |
| Sept. 16 | Overcast | 25° /16° | 0 mm | 6 | |
| Sept. 17 | Overcast | 25° /17° | 1.3 mm | 6 | |
| Sept. 18 |  Mist | 24° /18° | 5.8 mm | 6 | |
| Sept. 19 | Overcast | 24° /16° | 3.9 mm | 5 | |
| Sept. 20 | Sunny | 21° /15° | 2.1 mm | 5 | |
| Sept. 21 | Overcast | 23° /14° | 0.4 mm | 5 | |
| Sept. 22 | Mist | 22° /13° | 0.7 mm | 4 | |
| Sept. 23 | Overcast | 21° /14° | 10.5 mm | 4 | |
| Sept. 24 | Overcast | 21° /14° | 1.9 mm | 5 | |
| Sept. 25 |  Moderate rain | 21° /15° | 24.7 mm | 4 | |
| Sept. 26 | Moderate or heavy rain shower | 22° /16° | 18.1 mm | 4 | |
| Sept. 27 | Light rain shower | 17° /14° | 57.5 mm | 1.5 | |
| Sept. 28 | Patchy rain possible | 15° /14° | 10.9 mm | 0.5 | |
| Sept. 29 | Overcast | 21° /14° | 0.1 mm | 2.7 | |
| Sept. 30 | Overcast | 25° /16° | 0 mm | 5.4 | |
| Next | |||||
Important Notice
Our weather forecast for Essex 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 Essex County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Essex County in September - FAQ
What are the expected maximum and minimum temperatures in Essex County during September?
During September, expect a variety of temperatures with highs around 24° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Essex County during September?
Significant rainfall exceeding 220 mm is expected in Essex County during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Essex County during September?
The average wind speed in Essex County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Essex County
Explore the daily rainfall trends and prepare for Essex Countys September weather 💧
Typically, Essex County has 21 rainy days in September with a total of 220 mm of rainfall.
UV exposure in Essex County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Essex County
Select a location for an accurate weather forecast
More Locations Quick links
More Essex County weather pages
You are here
Where is Essex County?Get accurate weather forecasts for Essex County, located at latitude 40.736 and longitude -74.172. Stay updated with localized weather information tailored for Essex County.
Found a mistake?
We appreciate your attention to details. Tell us here.