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

October weather forecast and climate
Charlestown, MD

Ocean temperature

In October, the average ocean temperature in Charlestown, Maryland, is 64.6°F (18.1°C).
Note: For most, swimming in 64.6°F (18.1°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In Charlestown, the average length of the day in October is 11.1h.

How cold is the water in October in Charlestown?

In Charlestown, in October, the average water temperature is 64.6°F (18.1°C). For most, swimming in 64.6°F (18.1°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

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

The average length of the day in October in Charlestown, Maryland, is 11.1h.
Average sea temperature in October - Charlestown, MD
  • Average sea temperature in October: 64.5°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 October - Charlestown, MD
  • Average daylight in October: 11.1h

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