August weather forecast
Sandy Spring, MD

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Weather in August

August, the last month of the summer in Sandy Spring, is also a moderately hot month, with an average temperature fluctuating between 67.6°F (19.8°C) and 84.9°F (29.4°C).

Temperature

Sandy Spring indicates an average high-temperature of a warm 84.9°F (29.4°C) in August, showing minor variation from July's 87.3°F (30.7°C). During the month of August, the temperature generally drops to a low average of 67.6°F (19.8°C).

Heat index

The heat index value for August is evaluated at a hot 93.2°F (34°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In Sandy Spring, the average relative humidity in August is 71%.

Rainfall

August is the month with the most rainfall. Rain falls for 17.1 days and accumulates 4.13" (105mm) of precipitation.

Snowfall

In Sandy Spring, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 39min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of August, in Sandy Spring, sunrise is at 6:36 am and sunset at 7:39 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

The 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 unsafe exposure to UV radiation for the average person.
Note: In August, the maximum UV index of 6 suggests this advice:
Ward off overexposure. Defence against solar harm is crucial. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In Sandy Spring, in August, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 67.6°F (19.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 93.2°F (34°C).

What is the average humidity in August?

The average relative humidity in August is 71%.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 17.1 days and typically aggregates up to 4.13" (105mm) of precipitation.

How much does it rain in Sandy Spring in August?

In August, in Sandy Spring, the rain falls for 17.1 days. Throughout August, 4.13" (105mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Sandy Spring have in August?

In August, the average day length is 13h and 39min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:39 pm EDT.

How many hours of sunshine does Sandy Spring have in August?

In Sandy Spring, the average sunshine duration in August is 10.2h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Sandy Spring, MD

Average temperature in August - Sandy Spring, MD
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in August
Sandy Spring, MD

Average pressure in August - Sandy Spring, 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 (29.95"Hg).

Average wind speed in August
Sandy Spring, MD

Average wind speed in August - Sandy Spring, MD
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in August
Sandy Spring, MD

Average humidity in August - Sandy Spring, MD
  • Average humidity in August: 71%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in August
Sandy Spring, MD

Average rainfall in August - Sandy Spring, 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 (2.17").

Average rainfall days in August
Sandy Spring, MD

Average rainfall days in August - Sandy Spring, MD
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in August
Sandy Spring, MD

Average snowfall in August - Sandy Spring, MD
  • Average snowfall in August: 0"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Sandy Spring, MD

Average snowfall days in August - Sandy Spring, MD
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Sandy Spring, MD

Average daylight in August / Average sunshine in August - Sandy Spring, MD
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in August
Sandy Spring, MD

Average sunshine days in August - Sandy Spring, MD
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in August
Sandy Spring, MD

Average UV index in August - Sandy Spring, 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, November and December (UV index 2).

Average cloud cover in August
Sandy Spring, MD

Average cloud cover in August - Sandy Spring, MD
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Sandy Spring, MD

Average visibility in August - Sandy Spring, MD
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Sandy Spring, Maryland, USA

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