Cape Cod

Cape Cod Weather in May

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

Are you planning a trip a to Cape Cod, the United States of America in May and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Cape Cod in May

Cape Cod, the United States of America is a region in the United States of America. May in Cape Cod generally has temperatures that range from mild to pleasant, with moderate precipitation.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is mild in Chatham at 17°C (63°F) to pleasant in Bourne at 19°C (66°F). Nighttime temperatures generally drop to 9°C (48°F) in Bourne and 10°C (50°F) in Chatham.

For a closer look at conditions across Cape Cod, the United States of America, refer to the map below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Falmouth with an average of 85 mm (3.3 in) to moderate rainfall in Provincetown (P-town) with 96 mm (3.8 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))

Best Places to Visit in Cape Cod in May

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

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 May for some of the most popular destinations in Cape Cod, the United States of America?

Temperature range in Cape Cod (May)

Precipitation variation in Cape Cod (May)

Provincetown (P-town)

In May Provincetown (P-town) generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

May
April
May
June
Max temperature
12°C (54°F)
17°C (63°F)
22°C (72°F)
Min temperature
4°C (39°F)
10°C (50°F)
14°C (57°F)
Monthly rainfall
90 mm (3.5 in)
96 mm (3.8 in)
95 mm (3.7 in)
Monthly rainy days
11 days
13 days
13 days
Weather conditions

Dennis

In May Dennis generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
12°C (54°F)
18°C (64°F)
22°C (72°F)
Min temperature
4°C (39°F)
10°C (50°F)
15°C (59°F)
Monthly sun hours
225 hours
261 hours
281 hours
Monthly rainfall
97 mm (3.8 in)
92 mm (3.6 in)
96 mm (3.8 in)
Monthly rainy days
11 days
13 days
13 days
Weather conditions

Falmouth

In May Falmouth generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
13°C (55°F)
18°C (64°F)
23°C (73°F)
Min temperature
4°C (39°F)
10°C (50°F)
14°C (57°F)
Monthly sun hours
225 hours
261 hours
281 hours
Monthly rainfall
99 mm (3.9 in)
85 mm (3.3 in)
107 mm (4.2 in)
Monthly rainy days
11 days
12 days
13 days
Weather conditions

Chatham

In May Chatham generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

May
April
May
June
Max temperature
12°C (54°F)
17°C (63°F)
21°C (70°F)
Min temperature
5°C (41°F)
10°C (50°F)
14°C (57°F)
Monthly sun hours
225 hours
261 hours
281 hours
Monthly rainfall
90 mm (3.5 in)
89 mm (3.5 in)
91 mm (3.6 in)
Monthly rainy days
10 days
11 days
11 days
Weather conditions

Eastham

In May Eastham generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
12°C (54°F)
18°C (64°F)
22°C (72°F)
Min temperature
5°C (41°F)
10°C (50°F)
14°C (57°F)
Monthly sun hours
225 hours
261 hours
281 hours
Monthly rainfall
95 mm (3.7 in)
92 mm (3.6 in)
101 mm (4 in)
Monthly rainy days
11 days
12 days
12 days
Weather conditions

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 May

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

City Weather Day temp Night temp Rainfall
Provincetown (P-town) 17°C (63°F) 10°C (50°F) 96 mm (3.8 in)
Dennis 18°C (64°F) 10°C (50°F) 92 mm (3.6 in)
Falmouth 18°C (64°F) 10°C (50°F) 85 mm (3.3 in)
Chatham 17°C (63°F) 10°C (50°F) 89 mm (3.5 in)
Eastham 18°C (64°F) 10°C (50°F) 92 mm (3.6 in)
Sandwich 19°C (66°F) 9°C (48°F) 93 mm (3.7 in)

Cape Cod weather in May: frequently asked questions

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

Cape Cod, the United States of America typically experiences tolerable weather in May, part of the season. Daytime highs in Provincetown (P-town) average around 17°C (63°F), and temperatures drop to about 10°C (50°F) at night.

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

Provincetown (P-town) averages a daytime maximum of 17°C (63°F) in May, with overnight lows close to 10°C (50°F).

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

Not particularly. Provincetown (P-town) averages just 96 mm (3.8 in) of rain in May, making it a mostly dry month for Cape Cod, the United States of America.

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

In our opinion, May is a good time to visit Cape Cod, the United States of America with overall tolerable weather in Provincetown (P-town).

Generally speaking, June, July, August and September provide perfect weather in Provincetown (P-town). On the other hand, the weather in January, February, March, November and December tend 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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