August weather forecast
Baltimore, MD

A golden evening appearance of tall buildings in Baltimore, Maryland
A golden evening appearance of tall buildings in Baltimore, Maryland

Weather in August

The last month of the summer, August, is another warm month in Baltimore, Maryland, with an average temperature varying between 83.5°F (28.6°C) and 67.8°F (19.9°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still warm 83.5°F (28.6°C). In Baltimore, the average low-temperature is 67.8°F (19.9°C).

Heat index

In August, the average heat index is computed to be a tropical 90.3°F (32.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, pregnancy, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Baltimore, the average relative humidity in August is 73%.

Rainfall

August is the month with the most rainfall. Rain falls for 16.8 days and accumulates 4.13" (105mm) of precipitation.

Snowfall

In Baltimore, snow does not fall in April through October.

Ocean temperature

With an average ocean temperature of 77.5°F (25.3°C), August is the month with the warmest seawater in Baltimore.
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In August, the average length of the day in Baltimore is 13h and 40min.
On the first day of August, sunrise is at 6:06 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:39 pm EDT.

Sunshine

The average sunshine in August is 10.4h.

UV index

The months with the highest UV index in Baltimore are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in August in Baltimore?

In Baltimore, Maryland, in August, the average high-temperature is 83.5°F (28.6°C), and the average low-temperature is 67.8°F (19.9°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 90.3°F (32.4°C).

What is the average humidity in August in Baltimore?

In Baltimore, the average relative humidity in August is 73%.

What is the wettest month in Baltimore?

August is the month with the most rainfall in Baltimore, Maryland. Rain falls for 16.8 days and accumulates 4.13" (105mm) of precipitation.

How many days does it rain in August in Baltimore?

In Baltimore, Maryland, during August, the rain falls for 16.8 days and regularly aggregates up to 4.13" (105mm) of precipitation.

When it does not snow in Baltimore?

April through October are months without snowfall in Baltimore.

What month is the ocean warmest in Baltimore?

August is the month with the warmest seawater, with an average ocean temperature of 77.5°F (25.3°C).

What is the ocean temperature in August in Baltimore?

In Baltimore, in August, the average water temperature is 77.5°F (25.3°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Baltimore have in August?

In Baltimore, the average day length in August is 13h and 40min.

When are sunrise and sunset in August in Baltimore?

In August, on the first day of the month, sunrise is at 6:06 am and sunset at 8:18 pm. On the last day of the month, in Baltimore, sunrise is at 6:34 am and sunset at 7:39 pm EDT.

How long on average sun shines in August in Baltimore?

In Baltimore, Maryland, the average sunshine duration in August is 10.4h.

What is the month with the highest UV index in Baltimore?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Baltimore, Maryland.

What is the UV index intensity in August in Baltimore?

The average daily maximum UV index in August in Baltimore, Maryland, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Baltimore, MD

Average temperature in August - Baltimore, MD
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in August: 67.8°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

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Average pressure in August
Baltimore, MD

Average pressure in August - Baltimore, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Baltimore, MD

Average wind speed in August - Baltimore, MD
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in August
Baltimore, MD

Average humidity in August - Baltimore, MD
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April, July and November (72%).

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Average rainfall in August
Baltimore, MD

Average rainfall in August - Baltimore, MD
  • Average rainfall in August: 4.13"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in August
Baltimore, MD

Average rainfall days in August - Baltimore, MD
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in August
Baltimore, MD

Average snowfall in August - Baltimore, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Baltimore, MD

Average snowfall days in August - Baltimore, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in August
Baltimore, MD

Average sea temperature in August - Baltimore, MD
  • Average sea temperature in August: 77.5°F

The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

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Average daylight in August /
Average sunshine in August
Baltimore, MD

Average daylight in August / Average sunshine in August - Baltimore, MD
  • Average daylight in August: 13h and 40min

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).

  • Average sunshine in August: 10h and 24min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in August
Baltimore, MD

Average sunshine days in August - Baltimore, MD
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in August
Baltimore, MD

Average UV index in August - Baltimore, MD
  • Average UV index in August: 6

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

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Average cloud cover in August
Baltimore, MD

Average cloud cover in August - Baltimore, MD
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in August
Baltimore, MD

Average visibility in August - Baltimore, MD
  • Average visibility in August: 6mi

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

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