Monthly weather forecast and climate
Lewes, DE

Average sea temperature - Lewes, DE

The best month for swimming (with the highest average sea temperature) is August (76.9°F).
The coldest month (with the lowest average sea temperature) is February (40.7°F).

Average daylight - Lewes, DE

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.5h).