Falmouth Weather in September

Falmouth in September sees high temperatures, with highs around 23°C (73°F) and overnight lows of 14°C (57°F). Rainfall is fairly high at around 94 mm (3.7 in) on average, so pack waterproofs just in case.

Rainfall in Falmouth in September

Rain is expected on roughly 8 days, totalling around 94 mm (3.7 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Falmouth in September

September tends to be one of the perfect months in Falmouth, with 23°C (73°F) in the afternoon and 14°C (57°F) overnight. September is typically considered a summer month. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Falmouth in September

Expect a lot of sunshine this month, with about 231 hours of sun. These sunny conditions add to the overall experience.

If your ideal day consists of dry skies and pleasant temperatures, July, August and September typically offer the best circumstances for Falmouth.

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• January
• February
• March
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• May
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• August

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• October
• November
• December

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

Falmouth Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 27%  

Precipitation 94 mm (3.7 in)  

Rainy days 8 days  

Sunshine 231 hours *  

Percentage Sunshine *  

* Data from: Nantucket, the United States of America (52 KM, 32 Miles).

What to Wear in Falmouth in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Falmouth 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

Barbeque

8/10

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 Falmouth's climate page.

More climate data for Falmouth

Temperature Rainfall Sunshine

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