Weather in August
August continues the peak summer conditions at
Cape Cod National Seashore. The sea temperature reaches another high, with an average of 67.5°F (19.7°C) marking the warmest in the year. Daylight hours start their gradual decline from the peak in
June and
July but remain significant. August, sandwiched between July and
September, keeps the favorable weather patterns of summer before the ensuing autumn.
Ocean temperature
With an average ocean temperature of 67.5°F (19.7°C), August is the month with the warmest seawater.
Note: Most people do not find pleasure in swimming when the water temperature is 67.5°F (19.7°C). Breathing becomes increasingly difficult to manage as the water temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In August, the average length of the day is 13h and 49min.
On the first day of August in Cape Cod National Seashore, sunrise is at 5:34 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:14 pm EDT.
[Resources]