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Cape Cod Weather

Cape Cod, Massachusetts has a unique climate influenced by its geography and proximity to the Atlantic Ocean, keeping summers cooler and winters milder compared to inland areas. Overall, Cape Cod's climate is characterized by its maritime influence, with relatively mild temperatures, moderate precipitation, and the occasional impact of coastal storms throughout the year. 

Moderate Summers
Summers on Cape Cod are generally mild and pleasant, with average high temperatures ranging from the 70s to low 80s Fahrenheit (around 21-28°C). The ocean breeze helps keep temperatures from becoming uncomfortably hot. Summer nights can be cool, so pack a sweatshirt for after dusk in case.

Milder Winters
Winters tend to be chilly, but not extremely cold. Average highs in the winter months range from the 30s to 40s Fahrenheit (around 1-7°C), while lows typically drop to the 20s (around -6°C). Snowfall along the coast is not usually excessive.

Spring and Fall
Spring and fall are transitional seasons, with mild temperatures and often changing weather patterns. The term "Second Summer" is used on Cape Cod to describe the period of warm, sunny weather that occurs during the fall months, typically in September and often extending into October. During this time, temperatures can be reminiscent of summer weather, and ocean temperatures also remain warm for swimming and water activities.

Learn more about visiting Cape Cod in each season.

Quahog Day

Speaking of weather, did you know that Cape Cod has it own trusty weather prognosticator? On the first day of summer each June, the region's official mascot—Doug the Quahog—predicts how many beach days we have to look forward to for the summer. Quahog Day has become a rite of passage into summer for many Cape Codders and visitors. Find out more!