Vermont weather

Our guide to the weather in Vermont during September

21

Average high

3

UV Index

116mm

Monthly rainfall

80%

Humidity

We've looked at the most up-to-date weather data for Vermont, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Vermont weather in September.

How warm is it in Vermont during September?

The temperature reaches around 21℃ during the daytime in September, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Vermont during September?

On average, there will be 6 rainy days during the month, amounting to 116.1mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Vermont during September?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. With moderate air temperatures, any breeze will feel cool.

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Weather in Vermont

Our month-by-month guide to the weather and climate in Vermont

-5.3

Vermont weather in

January
-3.7

Vermont weather in

February
1.5

Vermont weather in

March
9.2

Vermont weather in

April
18.1

Vermont weather in

May
22.0

Vermont weather in

June
25.4

Vermont weather in

July
24.8

Vermont weather in

August
20.5

Vermont weather in

September
12.8

Vermont weather in

October
4.9

Vermont weather in

November
-1.3

Vermont weather in

December