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Weather · September

Edison weather in September

Average highs of 78°F, lows of 57°F and 4.2 in of rain, from 30 years of weather records.

September is Edison’s 4th warmest month, with average highs of 78°F and lows of 57°F. That is 6° cooler than August, and 15° above the yearly average high.

Average high
78°F
Average low
57°F
Precipitation
4.2 in
Wet days
9
Sunrise · sunset
6:37 AM · 7:07 PM

September across the year

  1. 40°23°Jan
  2. 43°24°Feb
  3. 51°31°Mar
  4. 63°41°Apr
  5. 72°51°May
  6. 81°60°Jun
  7. 87°66°Jul
  8. 85°64°Aug
  9. 78°57°Sep
  10. 67°44°Oct
  11. 56°35°Nov
  12. 45°28°Dec

High and low Rain

What to wear in September

  • Warm days: shorts and T-shirts, with a light layer for cooler evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 9 days this month.

September is good for

What’s on in Edison in September

See all upcoming events and school days off.

See Edison

A look around town before you go.

The Edison Memorial Tower video thumbnail

THINGS TO DO · YOUTUBE SHORT

The Edison Memorial Tower

The light-bulb-topped Edison Memorial Tower at the Menlo Park site. A Short shared by Jersey Jobaws.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August85°F64°F4.7 in
September78°F57°F4.2 in
October67°F44°F4.1 in

Planning a trip? See the best time to visit Edison and today’s forecast.

Questions

How hot does it get in Edison in September?

Average highs are 78°F and average lows 57°F, for a daily mean of 67°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Edison in September?

September averages 4.2 in of precipitation over about 9 days with at least 0.01 in. It is the 6th wettest month of the year.

What time is sunset in Edison in September?

Around mid-September the sun rises about 6:37 AM and sets about 7:07 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Edison?

Yes. September is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, New Brunswick 3 Se station (4.4 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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