August weather forecast and climate
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 also a moderately hot month in Baltimore, Maryland, with average temperature ranging between max 83.5°F (28.6°C) and min 67.8°F (19.9°C).

Temperature

In Baltimore, Maryland, the average high-temperature is essentially the same as in July - a still moderately hot 83.5°F (28.6°C). The average low-temperature, in Baltimore, is 67.8°F (19.9°C).

Heat index

In August, the average heat index is evaluated at a tropical 90.3°F (32.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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', 'apparent temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, differences in body mass, height, and shape, wind), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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 August, the average relative humidity in Baltimore is 73%.

Rainfall

The month with the most rainfall in Baltimore, Maryland, is August when the rain falls for 16.8 days and typically aggregates up to 4.13" (105mm) of precipitation.

Snowfall

In Baltimore snow does not fall in April through October.

Ocean temperature

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

Daylight

In August, the average length of the day in Baltimore, Maryland, is 13.7h.

Sunshine

The average sunshine in Baltimore is 10.4h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
[Resources]

FAQ

What is the temperature in August in Baltimore?

The average high-temperature, in August, in Baltimore, is 83.5°F (28.6°C), while the average low-temperature is 67.8°F (19.9°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), that combines relative humidity and air temperature, is calculated to 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%.

How many days does it rain in August in Baltimore?

In August, in Baltimore, the rain falls for 16.8 days. Throughout August, 4.13" (105mm) of precipitation is accumulated.

What is the rainiest month in Baltimore?

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

When it does not snow in Baltimore?

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

What month is the ocean warmest in Baltimore?

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

What is the water temperature in August in Baltimore?

In Baltimore, Maryland, 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.

What is the average length of the day in August in Baltimore?

In August, the average length of the day in Baltimore, Maryland, is 13.7h.

How long on average sun shines in August in Baltimore?

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

When is the highest UV index in Baltimore?

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

How high is the UV index in August in Baltimore?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation.

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).

[Resources]

Average pressure in August
Baltimore, MD

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

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

[Resources]

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).

[Resources]

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%).
Months with the lowest relative humidity are April, July and November (72%).

[Resources]

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").

[Resources]

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).

[Resources]

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").
Months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

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).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

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).

[Resources]

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

Average daylight in August / Average sunshine in August - Baltimore, MD
  • Average daylight in August: 13.7h

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 August: 10.4h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is February (Average sunshine: 5h).

[Resources]

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).

[Resources]

Average UV index in August
Baltimore, MD

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

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

[Resources]

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).

[Resources]

Average visibility in August
Baltimore, MD

Average visibility in August - Baltimore, MD
  • Average visibility in August: 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).

[Resources]