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United StatesThe weather in September in New Jersey
It's warm in September in New Jersey with an average temperature of 26°C. Temperatures this month range from a low of 21°C to a high of 30°C. At night, you can expect temperatures between 12°C and 19°C.
Looking for great weather? September is a good time to be in New Jersey. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for New Jersey, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2023, New Jersey reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 16°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 26°C.
Rainfall amount
In September, there is an average of 56 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for New Jersey
Click on any day in September to get detailed info about the usual weather on that day in New Jersey. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| New Jersey | New York | |
|---|---|---|
| Average temperature | 26°C | 27°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 56 mm | 57 mm |
| Rainy days | 9 days | 9 days |
Start of September
The month of September starts in New Jersey with hot temps, averaging around 29°C during the day and nights around 18°C.
Mid September
By mid-September, daytime temps drop to around 27°C, with nights around 16°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in New Jersey is around 25°C, while nighttime temps are about 14°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of New Jersey for all months and discover the best travel time
The climate in New Jersey is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in New Jersey to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in New Jersey, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in New Jersey
Temperature in September in New Jersey over the years
Precipitation charts
These charts show the average amount of precipitation in September in New Jersey, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in New Jersey
Total precipitation in September in New Jersey over the years
Daily UV index in September in New Jersey
This chart shows the average daily UV index in September in New Jersey, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in New Jersey
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Average weather in New Jersey by month
Click on a month below to see detailed weather info for New Jersey. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.