April weather forecast and climate
Annapolis, MD

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

Weather in April

April in Annapolis, Maryland, is an enjoyable spring month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 48.2°F (9°C).

Temperature

In April, the average high-temperature increases, from a fresh 50.5°F (10.3°C) in March, to a comfortable 62.2°F (16.8°C). The average low-temperature, in Annapolis, is 48.2°F (9°C).

Humidity

Months with the lowest humidity are January, March, April and November, with an average relative humidity of 72%.

Rainfall

In April, the rain falls for 11.3 days. Throughout April, 0.75" (19mm) of precipitation is accumulated. In Annapolis, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.

Snowfall

In Annapolis snow does not fall through October.

Ocean temperature

In April, the average ocean temperature in Annapolis is 51.4°F (10.8°C).
Note: Swimming in 51.4°F (10.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In April, the average length of the day in Annapolis is 13.3h.

Sunshine

In Annapolis, Maryland, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in April in Annapolis?

In April, in Annapolis, Maryland, the average high-temperature is 62.2°F (16.8°C), and the average low-temperature is 48.2°F (9°C).

What are the least humid months in Annapolis?

Months with the lowest humidity in Annapolis, Maryland, are January, March, April and November, with an average relative humidity of 72%.

What is the average humidity in April in Annapolis?

In April, the average relative humidity in Annapolis, Maryland, is 72%.

How much does it rain in Annapolis in April?

In Annapolis, during April, the rain falls for 11.3 days and regularly aggregates up to 0.75" (19mm) of precipitation.

Does it snow in Annapolis in April?

In April, it doesn't snow. March is the latest month when it typically snows.

When it does not snow in Annapolis?

In Annapolis snow does not fall in April through October.

What is the ocean temperature in April in Annapolis?

In Annapolis, Maryland, in April, the average water temperature is 51.4°F (10.8°C). Swimming in 51.4°F (10.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in April in Annapolis?

The average length of the day in April in Annapolis is 13.3h.

How many hours of sunshine does Annapolis have in April?

In Annapolis, the average sunshine in April is 8.8h.

What is the UV index reading in April in Annapolis?

In April, the average daily maximum UV index in Annapolis is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in April
Annapolis, MD

Average temperature in April - Annapolis, MD
  • Average high temperature in April: 62.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in April: 48.2°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in April
Annapolis, MD

Average pressure in April - Annapolis, MD
  • Average pressure in April: 29.99"

The month with the highest atmospheric pressure is November (30.13").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in April
Annapolis, MD

Average wind speed in April - Annapolis, MD
  • Average wind speed in April: 9.7mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in April
Annapolis, MD

Average humidity in April - Annapolis, MD
  • Average humidity in April: 72%

The month with the highest relative humidity is May (78%).
Months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in April
Annapolis, MD

Average rainfall in April - Annapolis, MD
  • Average rainfall in April: 0.75"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in April
Annapolis, MD

Average rainfall days in April - Annapolis, MD
  • Average rainfall days in April: 11.3 days

Months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in April
Annapolis, MD

Average snowfall in April - Annapolis, MD
  • Average snowfall in April: 0"

The month with the highest snowfall is January (0.67").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Annapolis, MD

Average snowfall days in April - Annapolis, MD
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in April
Annapolis, MD

Average sea temperature in April - Annapolis, MD
  • Average sea temperature in April: 51.5°F

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).

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Average daylight in April /
Average sunshine in April
Annapolis, MD

Average daylight in April / Average sunshine in April - Annapolis, MD
  • Average daylight in April: 13.3h

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

  • Average sunshine in April: 8.8h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in April
Annapolis, MD

Average sunshine days in April - Annapolis, MD
  • Average sunshine days in April: 17 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in April
Annapolis, MD

Average UV index in April - Annapolis, MD
  • Average UV index in April: 4

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in April
Annapolis, MD

Average cloud cover in April - Annapolis, MD
  • Average cloud cover in April: 40

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in April
Annapolis, MD

Average visibility in April - Annapolis, MD
  • Average visibility in April: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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