Cape Cod Weather by Month — Temperature & Rainfall Guide

Cape Cod is a region in the United States of America. Many people wonder what the weather conditions are in Cape Cod over the year. What is the best time to visit Cape Cod?

This page shows the average weather conditions by month in Cape Cod over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

January is a winter month. In Provincetown (P-town) you can expect cold maximum average daytime temperatures around 4°C (39°F) and nighttime temperatures around -3°C (27°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Cape Cod in January here.

February is a winter month. In Provincetown (P-town) you can expect cold maximum average daytime temperatures around 3°C (37°F) and nighttime temperatures around -4°C (25°F). On average, this month is one of the coldest months of the year in Cape Cod. So be prepared and make sure to dress up warm.

Find more detailed climate information for Cape Cod in February here.

March is a winter month. In Provincetown (P-town) you can expect cold maximum average daytime temperatures around 6°C (43°F) and nighttime temperatures around 0°C (32°F).

Find more detailed climate information for Cape Cod in March here.

In Provincetown (P-town) you can expect cold maximum average daytime temperatures around 12°C (54°F) and nighttime temperatures around 4°C (39°F).

Find more detailed climate information for Cape Cod in April here.

The temperatures range from moderate in Chatham with 17°C (63°F) to pleasant in Bourne with 19°C (66°F).

Find more detailed climate information for Cape Cod in May here.

June is a summer month. The temperatures range from pleasant in Chatham with 21°C (70°F) to high in Bourne with 23°C (73°F).

Find more detailed climate information for Cape Cod in June here.

July is a summer month. The average maximum daytime temperatures are high and range from 25°C (77°F) in Chatham to 27°C (81°F) in Bourne. On average, this month is one of the warmest months of the year in Cape Cod. So be prepared and make sure to dress lightly.

Find more detailed climate information for Cape Cod in July here.

August is a summer month. In Provincetown (P-town) you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 18°C (64°F).

Find more detailed climate information for Cape Cod in August here.

In Provincetown (P-town) you can expect pleasant maximum average daytime temperatures around 22°C (72°F) and nighttime temperatures around 14°C (57°F).

Find more detailed climate information for Cape Cod in September here.

In Provincetown (P-town) you can expect mild maximum average daytime temperatures around 16°C (61°F) and nighttime temperatures around 9°C (48°F).

Find more detailed climate information for Cape Cod in October here.

In Provincetown (P-town) you can expect cold maximum average daytime temperatures around 11°C (52°F) and nighttime temperatures around 4°C (39°F).

Find more detailed climate information for Cape Cod in November here.

In Provincetown (P-town) you can expect cold maximum average daytime temperatures around 7°C (45°F) and nighttime temperatures around 1°C (34°F).

Find more detailed climate information for Cape Cod in December here.