Cape Cod

Cape Cod Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Cape Cod, the United States of America in September.

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Provincetown (P-town) Dennis Falmouth Chatham

Considering a trip to Cape Cod, the United States of America this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Cape Cod in September

Cape Cod, the United States of America is a region in the United States of America. September in Cape Cod generally has pleasant temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect pleasant maximum daytime temperatures of around 22°C (72°F) and nighttime temperatures around 14°C (57°F) in Provincetown (P-town).

For specific regional insights in Cape Cod, the United States of America, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Provincetown (P-town) with an average of 74 mm (2.9 in) to high rainfall in Bourne with 112 mm (4.4 in).

Explore Cape Cod by month

Pick a month to see the average temperature, rainfall and sunshine in Cape Cod — and find the best time to visit. (based on Provincetown (P-town))

January4°C (39°F) February3°C (37°F) March6°C (43°F) April12°C (54°F) May17°C (63°F) June22°C (72°F) This monthJuly26°C (79°F) August25°C (77°F) September22°C (72°F) October16°C (61°F) November11°C (52°F) December7°C (45°F)
Best Time to Visit Cape Cod →

Best Places to Visit in Cape Cod in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Cape Cod.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Cape Cod

What is the weather like in September for some of the most popular destinations in Cape Cod, the United States of America?

Temperature range in Cape Cod (September)

Precipitation variation in Cape Cod (September)

Provincetown (P-town)

In September Provincetown (P-town) generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
22°C (72°F)
16°C (61°F)
Min temperature
18°C (64°F)
14°C (57°F)
9°C (48°F)
Monthly rainfall
65 mm (2.6 in)
74 mm (2.9 in)
110 mm (4.3 in)
Monthly rainy days
9 days
8 days
13 days
Weather conditions
perfect
perfect
unpleasant
Climate in Provincetown (P-town) →

Dennis

In September Dennis generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
22°C (72°F)
17°C (63°F)
Min temperature
18°C (64°F)
14°C (57°F)
9°C (48°F)
Monthly sun hours
278 hours
231 hours
205 hours
Monthly rainfall
80 mm (3.1 in)
98 mm (3.9 in)
116 mm (4.6 in)
Monthly rainy days
9 days
8 days
13 days
Weather conditions
perfect
perfect
unpleasant
Climate in Dennis →

Falmouth

In September Falmouth generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
23°C (73°F)
18°C (64°F)
Min temperature
17°C (63°F)
14°C (57°F)
9°C (48°F)
Monthly sun hours
278 hours
231 hours
205 hours
Monthly rainfall
79 mm (3.1 in)
94 mm (3.7 in)
114 mm (4.5 in)
Monthly rainy days
9 days
8 days
12 days
Weather conditions
perfect
perfect
tolerable
Climate in Falmouth →

Chatham

In September Chatham generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
22°C (72°F)
16°C (61°F)
Min temperature
18°C (64°F)
15°C (59°F)
10°C (50°F)
Monthly sun hours
278 hours
231 hours
205 hours
Monthly rainfall
71 mm (2.8 in)
82 mm (3.2 in)
110 mm (4.3 in)
Monthly rainy days
8 days
8 days
12 days
Weather conditions
perfect
perfect
unpleasant
Climate in Chatham →

Eastham

In September Eastham generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
22°C (72°F)
17°C (63°F)
Min temperature
18°C (64°F)
15°C (59°F)
10°C (50°F)
Monthly sun hours
278 hours
231 hours
205 hours
Monthly rainfall
76 mm (3 in)
90 mm (3.5 in)
120 mm (4.7 in)
Monthly rainy days
9 days
8 days
13 days
Weather conditions
perfect
perfect
unpleasant
Climate in Eastham →

Is your destination not in the list? Have a look at all destinations in Cape Cod, in the United States of America.

Popular cities in September

Day & night temperatures, rainfall and average weather in Cape Cod in September.

City Weather Day temp Night temp Rainfall
Provincetown (P-town) 22°C (72°F) 14°C (57°F) 74 mm (2.9 in)
Dennis 22°C (72°F) 14°C (57°F) 98 mm (3.9 in)
Falmouth 23°C (73°F) 14°C (57°F) 94 mm (3.7 in)
Chatham 22°C (72°F) 15°C (59°F) 82 mm (3.2 in)
Eastham 22°C (72°F) 15°C (59°F) 90 mm (3.5 in)
Sandwich 22°C (72°F) 14°C (57°F) 108 mm (4.3 in)

Cape Cod weather in September: frequently asked questions

What is the weather like in Cape Cod, the United States of America in September?

In September, Cape Cod, the United States of America generally has perfect weather conditions. Provincetown (P-town) sees daytime temperatures near 22°C (72°F), with nights cooling to roughly 14°C (57°F).

What is the average temperature in Cape Cod, the United States of America in September?

In Provincetown (P-town), the average daytime high in September is 22°C (72°F), while nighttime temperatures drop to around 14°C (57°F).

Does Cape Cod, the United States of America get a lot of rain in September?

Not particularly. Provincetown (P-town) averages just 74 mm (2.9 in) of rain in September, making it a mostly dry month for Cape Cod, the United States of America.

Is September a Good Time to Visit Cape Cod, the United States of America?

We consider September to be one of the best times to travel to Cape Cod, the United States of America. Typically, the climate in Provincetown (P-town) is perfect. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Cape Cod, the United States of America is in June, July, August and September with generally perfect weather in Provincetown (P-town). The weather in January, February, March, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Cape Cod.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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