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

July weather forecast and climate
Charlestown, MD

Ocean temperature

In Charlestown, Maryland, in July, the average water temperature is 74.3°F (23.5°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.3°F (23.5°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In July, the average length of the day is 14.6h.

How warm is the water in July in Charlestown?

In July, the average ocean temperature is 74.3°F (23.5°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.3°F (23.5°C) water.

How many hours of daylight does Charlestown have in July?

The average length of the day in July in Charlestown, Maryland, is 14.6h.
Average sea temperature in July - Charlestown, MD
  • Average sea temperature in July: 74.4°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 July - Charlestown, MD
  • Average daylight in July: 14.6h

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