New London County (New London)
September
Weather in New London County, Connecticut for September 2027
Your guide to New London County weather in September - trends and predictions
New London County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 252.3 mm.
Is September a good time to visit New London County? check out the best time to travel to New London County page.
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Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
22°/15°
Temperatures
22 km/h
Avg max wind
78 %
Avg humidity
New London County Weather September
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Temperatures trend during September in New London County
See the weather trend as well as the moving average line
September weather in New London County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Heavy rain | 23° /16° | 57.8 mm | 4 | |
| Sept. 2 |  Cloudy | 24° /16° | 0.2 mm | 5 | |
| Sept. 3 |  Light rain | 25° /15° | 4 mm | 2 | |
| Sept. 4 |  Moderate rain | 25° /17° | 11.6 mm | 2 | |
| Sept. 5 | Moderate rain | 25° /17° | 14.1 mm | 5 | |
| Sept. 6 | Moderate rain | 21° /17° | 13 mm | 2 | |
| Sept. 7 |  Moderate or heavy rain shower | 24° /13° | 6.9 mm | 5 | |
| Sept. 8 |  Sunny | 27° /13° | 0 mm | 7 | |
| Sept. 9 | Cloudy | 23° /14° | 0.3 mm | 5 | |
| Sept. 10 |  Overcast | 25° /18° | 0.2 mm | 2 | |
| Sept. 11 | Sunny | 26° /15° | 0 mm | 7 | |
| Sept. 12 | Cloudy | 22° /14° | 0 mm | 6 | |
| Sept. 13 | Heavy rain | 22° /18° | 28.6 mm | 5 | |
| Sept. 14 |  Mist | 23° /16° | 0 mm | 4 | |
| Sept. 15 | Fog | 19° /14° | 0 mm | 4 | |
| Sept. 16 | Fog | 20° /15° | 0 mm | 5 | |
| Sept. 17 | Fog | 21° /16° | 0.9 mm | 4 | |
| Sept. 18 | Heavy rain | 24° /17° | 44 mm | 4 | |
| Sept. 19 | Overcast | 22° /15° | 0 mm | 4 | |
| Sept. 20 | Light rain | 21° /14° | 4.2 mm | 3 | |
| Sept. 21 |  Patchy rain possible | 19° /14° | 2 mm | 3 | |
| Sept. 22 | Moderate or heavy rain shower | 19° /14° | 8.2 mm | 2 | |
| Sept. 23 | Overcast | 21° /15° | 0 mm | 3 | |
| Sept. 24 | Fog | 20° /15° | 0 mm | 3 | |
| Sept. 25 | Light rain | 20° /15° | 4.8 mm | 1 | |
| Sept. 26 | Moderate rain | 20° /17° | 14.9 mm | 3 | |
| Sept. 27 | Moderate rain | 21° /16° | 14.4 mm | 3 | |
| Sept. 28 | Moderate rain | 19° /15° | 22.2 mm | 2 | |
| Sept. 29 | Overcast | 22° /15° | 0.1 mm | 3 | |
| Sept. 30 | Overcast | 20° /16° | 0.1 mm | 1 | |
| Next | |||||
Important Notice
Our weather forecast for New London 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 New London County forecast closer to your planned date for the most up-to-date weather information.
Change Month
New London County in September - FAQ
What are the expected maximum and minimum temperatures in New London County during September?
During September, expect a variety of temperatures with highs around 22° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in New London County during September?
Significant rainfall exceeding 252.3 mm is expected in New London County during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New London County during September?
The average wind speed in New London County during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New London County
Explore the daily rainfall trends and prepare for New London Countys September weather 💧
Typically, New London County has 10 rainy days in September with a total of 252.3 mm of rainfall.
UV exposure in New London County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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