August weather forecast
South River Heights, MD

Share

Weather in August

August, the last month of the summer in South River Heights, is another warm month, with an average temperature varying between 83.3°F (28.5°C) and 70.5°F (21.4°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a still moderately hot 83.3°F (28.5°C), not significantly different from the 84.7°F (29.3°C) of July. South River Heights registers a consistent average low-temperature of 70.5°F (21.4°C) during August.

Heat index

Throughout August, the heat index is evaluated at a tropical 89.6°F (32°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Consider that heat index readings are for situations in the shade and light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

The average relative humidity in August is 74%.

Rainfall

August is the month with the most rainfall in South River Heights. Rain falls for 14.3 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

In South River Heights, snow does not fall in April through October.

Daylight

In South River Heights, the average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:37 pm EDT.

Sunshine

The average sunshine in August is 10.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

How hot does it get in August?

The average high-temperature, in August, in South River Heights, is 83.3°F (28.5°C), while the average low-temperature is 70.5°F (21.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in August?

In South River Heights, the average relative humidity in August is 74%.

What is the wettest month in South River Heights?

August is the month with the most rainfall. Rain falls for 14.3 days and accumulates 1.69" (43mm) of precipitation.

How many days does it rain in August?

In South River Heights, in August, it is raining for 14.3 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow?

In South River Heights, snow does not fall in April through October.

What is the average length of the day in August?

In South River Heights, the average day length in August is 13h and 38min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:37 pm EDT.

How many hours of sunshine does South River Heights have in August?

In South River Heights, the average sunshine duration in August is 10.5h.

What is the month with the highest UV index?

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

What is the UV index reading in August?

In South River Heights, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
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
South River Heights, MD

Average temperature in August - South River Heights, MD
  • Average high temperature in August: 83.3°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 August: 70.5°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).

Average pressure in August
South River Heights, MD

Average pressure in August - South River Heights, MD
  • Average pressure in August: 29.99"Hg

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

Average wind speed in August
South River Heights, MD

Average wind speed in August - South River Heights, MD
  • Average wind speed in August: 6.6mph

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).

Average humidity in August
South River Heights, MD

Average humidity in August - South River Heights, MD
  • Average humidity in August: 74%

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

Average rainfall in August
South River Heights, MD

Average rainfall in August - South River Heights, MD
  • Average rainfall in August: 1.69"

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

Average rainfall days in August
South River Heights, MD

Average rainfall days in August - South River Heights, MD
  • Average rainfall days in August: 14.3 days

The 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).

Average snowfall in August
South River Heights, MD

Average snowfall in August - South River Heights, MD
  • Average snowfall in August: 0"

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

Average snowfall days in August
South River Heights, MD

Average snowfall days in August - South River Heights, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.5 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
South River Heights, MD

Average daylight in August / Average sunshine in August - South River Heights, 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 3min

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
South River Heights, MD

Average sunshine days in August - South River Heights, MD
  • Average sunshine days in August: 13.8 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).

Average UV index in August
South River Heights, MD

Average UV index in August - South River Heights, 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 and December (UV index 2).

Average cloud cover in August
South River Heights, MD

Average cloud cover in August - South River Heights, MD
  • Average cloud cover in August: 29

The 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).

Average visibility in August
South River Heights, MD

Average visibility in August - South River Heights, 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).

South River Heights, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location