Annapolis (MD) Weather & Climate: Best Time to Visit

In Annapolis, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 30°C (86°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 6°C (43°F).

At night, temperatures range from around 22°C (72°F) in July to -2°C (28°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Annapolis experiences significant rain/snowfall throughout the year, averaging 1203 mm (47 in) of precipitation annually. Annapolis can be quite wet during June, receiving approximately 145 mm (5.7 in) of precipitation over 12 rainy days.

In contrast, during the driest month (February), you will experience much drier conditions, with 66 mm (2.6 in) of precipitation spread across 10 rainy days. For more details, please visit our Annapolis Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Annapolis can be enjoyed more throughout the sunniest month of June under a blue sky, with approximately 9.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Annapolis.

The city experiences its highest humidity in August, reaching 69%. In March, the humidity drops to its lowest level at 58%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year