Weather in May
May amplifies the spring signals in the Cape Cod National Seashore area. The month observes a lasting increase in sea temperatures, signaling a definitive departure from the colder months. Daily average daylight extends further, making room for increased outdoor activities. Dowelled between April's end and June's onset, May makes a natural transition towards the warmth of summer.
Note: Entering waters of 49.1°F (9.5°C) is life-endangering. A mere moment in 55.4°F (13°C) waters feels piercing cold, and below 50°F (10°C) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
On the first day of May in Cape Cod National Seashore, sunrise is at 5:34 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:08 pm EDT.
[Resources]Ocean temperature
In Cape Cod National Seashore, in May, the average water temperature is 49.1°F (9.5°C).Note: Entering waters of 49.1°F (9.5°C) is life-endangering. A mere moment in 55.4°F (13°C) waters feels piercing cold, and below 50°F (10°C) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
Daylight
The average length of the day in May in Cape Cod National Seashore is 14h and 34min.On the first day of May in Cape Cod National Seashore, sunrise is at 5:34 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:08 pm EDT.
Frequently asked questions
What is the water temperature in May in Cape Cod National Seashore?
In Cape Cod National Seashore, Massachusetts, in May, the average water temperature is 49.1°F (9.5°C). Swimming in 49.1°F (9.5°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
How many hours of daylight does Cape Cod National Seashore have in May?
The average day length in May is 14h and 34min.
When are sunrise and sunset in May in Cape Cod National Seashore?
On the first day of May in Cape Cod National Seashore, Massachusetts, sunrise is at 5:34 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:08 pm EDT.
Average sea temperature in May
Cape Cod National Seashore, MA
- Average sea temperature in May: 49.2°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in May
Cape Cod National Seashore, MA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
Cape Cod National Seashore, Massachusetts, USA
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