Watertown Weather in September

September in Watertown typically sees daytime highs of 22°C (72°F) and nighttime lows of 11°C (52°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Watertown in September

Historically, approximately 12 days this month are expected to have rain, averaging 91 mm (3.6 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Watertown in September

The temperature in Watertown in September is perfect. Daytime highs reach 22°C (72°F), with nights dropping to 11°C (52°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 11°C (52°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 Watertown in September

The area enjoys a moderate level of sunlight, with around 165 hours. It's a good balance between sunny and cloudy days.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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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 Watertown's climate page.

Watertown Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 39%  

Precipitation 91 mm (3.6 in)  

Rainy days 12 days  

Sunshine 165 hours *  

Percentage Sunshine 44% *  

* Data from: Kingston, Canada (53 KM, 33 Miles).

What to Wear in Watertown 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Watertown in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

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 Watertown's climate page.

More climate data for Watertown

Temperature Rainfall Sunshine

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