New London Weather in September

September in New London brings high temperatures, with highs of 24°C (75°F) and nights dropping to 14°C (57°F). Rainfall is on the higher side this month, averaging around 106 mm (4.2 in), so keep a rain jacket handy.

Rainfall in New London in September

Records from the past 30 years suggest around 10 days of rain, with 106 mm (4.2 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in New London in September

Daytime temperatures in New London reach 24°C (75°F) in September, dropping to 14°C (57°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in New London in September

The days are predominantly sunny, with an estimated total of around 223 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

For New London itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit the United States of America, check out our New London's climate page.

New London Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 33%  

Precipitation 106 mm (4.2 in)  

Rainy days 10 days  

Humidity 72% *  

Sunshine 223 hours *  

Percentage Sunshine 60% *  

* Data from: Hartford, the United States of America (66 KM, 41 Miles).

What to Wear in New London in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in New London in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our New London's climate page.

More climate data for New London

Temperature Rainfall Sunshine Humidity

See the full New London climate overview or explore weather in the United States of America.