Monthly weather forecast and climate
Annapolis, MD

A view of Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome
A view of Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome

What is the coldest month in Annapolis?

January is the coldest month, with an average high-temperature of 42.6°F (5.9°C) and an average low-temperature of 29.1°F (-1.6°C).

How much does it rain in Annapolis?

Throughout the year, there are 115.1 rainfall days, and 47.3" (1200.7mm) of precipitation is accumulated.

What is the month with the lowest UV index in Annapolis?

Months with the lowest UV index in Annapolis are January and December, with an average UV index of 2.

What is the driest month in Annapolis?

February is the month with the least rainfall. Rain falls for 9.2 days and accumulates 2.9" (74.7mm) of precipitation.

What month is the ocean coldest in Annapolis?

With an average ocean temperature of 45.1°F (7.3°C), February is the month with the coldest seawater. At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What are the months with the highest UV index in Annapolis?

June and July, with an average UV index of 9, are months with the highest UV index.

What is the warmest month in Annapolis?

The warmest month is July, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 71.2°F (21.8°C).

What month is the ocean warmest in Annapolis?

August is the month with the warmest seawater in Annapolis, with an average ocean temperature of 77.7°F (25.4°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the wettest month in Annapolis?

September is the month with the most rainfall in Annapolis, Maryland. Rain falls for 7.8 days and accumulates 4.8" (120.9mm) of precipitation.
Average temperature - Annapolis, MD
Average rainfall - Annapolis, MD
Average rainfall days - Annapolis, MD

Months with the highest number of rainy days are March and April (11.2 days).
Months with the lowest number of rainy days are September and October (7.8 days).

Average sea temperature - Annapolis, MD

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

Average daylight / Average sunshine - Annapolis, MD

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

Months with most sunshine are June, July and August (Average sunshine: 9h).
Months with least sunshine are January, November and December (Average sunshine: 5).

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