Plymouth Weather in September

September is one of the perfect months to visit Plymouth, with daytime temperatures of 21°C (70°F) and lows of 8°C (46°F) at night. Do note that quite a bit of rainfall is typical, averaging around 94 mm (3.7 in).

Rainfall in Plymouth in September

Historically, the month has about 11 days of rain, averaging 94 mm (3.7 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Plymouth in September

September in Plymouth is generally perfect, with days reaching 21°C (70°F) and nights settling around 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Plymouth in September

Expect a lot of sunshine this month, with about 214 hours of sun. These sunny conditions add to the overall experience.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Plymouth.

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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 Plymouth's climate page.

Plymouth Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 37%  

Precipitation 94 mm (3.7 in)  

Rainy days 11 days  

Humidity 76% *  

Sunshine 214 hours *  

Percentage Sunshine *  

* Data from: Concord, the United States of America (62 KM, 38 Miles).

What to Wear in Plymouth in September

For Plymouth in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Plymouth in September

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

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

4/10

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 Plymouth's climate page.

More climate data for Plymouth

Temperature Rainfall Sunshine Humidity

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