Normal weather for New Jersey in September
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.
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.
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.
New Jersey in September |
UK | ||
|---|---|---|---|
 Average Temperature |
26°C | 20°C | |
 High Temp |
30°C | 22°C | |
| Low Temp |
21°C | 17°C | |
 Total Precipitation |
56 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
The climate of New Jersey is based on weather data from . Other spots, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in New Jersey for a full picture of the climate.
Start of September
The month of September starts in New Jersey with hot temperatures, averaging around 29°C during the day and nights close to 18°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature drops to around 27°C, with nights close to 16°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in New Jersey will be around 25°C, with nights close to 14°C. A shower might show up, but overall the weather will be dry and sunny.
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Is September a good time to visit New Jersey?
Want nice weather? Then September is a great time to be in New Jersey. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for New Jersey in September
With 36°C, New Jersey hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 16°C in 2023. The extreme night temperatures ranged from a low of 3°C to a high of 26°C.
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Daily Temperature in September in New Jersey
This chart shows the average daily temperatures, both day and night, for each day in September in New Jersey, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in New Jersey
The chart below shows the average daily precipitation in September for New Jersey, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 9 days of rain in New Jersey.
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.
Temperature in September in New Jersey Over the Years
This chart shows the average temperature in September in New Jersey, measured in degrees Celsius, over the past years.
Total Precipitation in September in New Jersey Over the Years
This chart shows the average precipitation in September in New Jersey, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for New Jersey
Click on a specific day in September for detailed info on the typical weather on that day in New Jersey. Check out the historical temperatures and precipitation over the past 10 years on this day.
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.
Or check out the climate of New Jersey for all months at once
