Charlestown
Maryland, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Charlestown, MD

Ocean temperature

August is the month with the warmest seawater in Charlestown, Maryland, with an average ocean temperature of 76.3°F (24.6°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.3°F (24.6°C).

Daylight

In Charlestown, the average length of the day in August is 13.7h.

When is the ocean warmest in Charlestown?

August is the month with the warmest seawater in Charlestown, Maryland, with an average ocean temperature of 76.3°F (24.6°C).

How warm is the water in August in Charlestown?

In Charlestown, the average seawater temperature in August is 76.3°F (24.6°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.3°F (24.6°C).

What is the average length of the day in August in Charlestown?

The average length of the day in August in Charlestown is 13.7h.
Average sea temperature in August - Charlestown, MD
  • Average sea temperature in August: 76.3°F

The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).

Average daylight in August - Charlestown, MD
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.4h).