August weather forecast
Germantown, MD

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Weather in August

In August, Germantown begins to wind down from the dizzying summer highs. The weather stays warm, but there is a marginal dip in temperature compared to July. The month marks the return of more rainfall leading to bouts of afternoon showers. The sunshine continues to beam down generously, ensuring that summer vibes linger. The soft wind begins to stir up a little, suggesting an approaching change in season.

Temperature

Germantown's transition from July to August introduces an average high-temperature of a warm 84.6°F (29.2°C), marking an insignificant variation from the 86.5°F (30.3°C). Throughout the month of August, Germantown reports a steady low-temperature average of 65.5°F (18.6°C).

Heat index

During August, the heat index is calculated to be a tropical 93.2°F (34°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The average relative humidity in August in Germantown is 74%.

Rainfall

The month with the most rainfall is August, when the rain falls for 16.2 days and typically aggregates up to 3.78" (96mm) of precipitation.

Snowfall

June through October are months without snowfall in Germantown.

Daylight

In Germantown, Maryland, the average length of the day in August is 13h and 40min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot does it get in Germantown in August?

Germantown in August has an average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 65.5°F (18.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 93.2°F (34°C).

What is the average humidity in August in Germantown?

In Germantown, Maryland, the average relative humidity in August is 74%.

What is the rainiest month in Germantown?

The month with the most rainfall in Germantown, Maryland, is August, when the rain falls for 16.2 days and typically aggregates up to 3.78" (96mm) of precipitation.

How many days does it rain in August in Germantown?

In Germantown, Maryland, in August, during 16.2 rainfall days, 3.78" (96mm) of precipitation is typically accumulated.

When it does not snow in Germantown?

June through October are months without snowfall.

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

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

When are sunrise and sunset in August in Germantown?

On the first day of August in Germantown, sunrise is at 6:10 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

How many hours of sunshine does Germantown have in August?

In August, the average sunshine duration in Germantown is 10.3h.

What are the months with the highest UV index in Germantown?

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

What is the UV index intensity in August in Germantown?

In August, the average daily maximum UV index in Germantown, Maryland, is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Germantown, MD

Average temperature in August - Germantown, MD
  • Average high temperature in August: 84.6°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in August
Germantown, MD

Average pressure in August - Germantown, 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).

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Average wind speed in August
Germantown, MD

Average wind speed in August - Germantown, MD
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in August
Germantown, MD

Average humidity in August - Germantown, MD
  • Average humidity in August: 74%

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in August
Germantown, MD

Average rainfall in August - Germantown, MD
  • Average rainfall in August: 3.78"

The wettest month (with the highest rainfall) is August (3.78").
The driest months (with the least rainfall) are January and February (1.97").

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Average rainfall days in August
Germantown, MD

Average rainfall days in August - Germantown, MD
  • Average rainfall days in August: 16.2 days

The month with the highest number of rainy days is May (17.5 days).
The months with the least rainy days are January and November (9.5 days).

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Average snowfall in August
Germantown, MD

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

The month with the highest snowfall is March (2.83").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Germantown, MD

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

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Germantown, 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 2min

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

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Average sunshine days in August
Germantown, MD

Average sunshine days in August - Germantown, MD
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in August
Germantown, MD

Average UV index in August - Germantown, 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
Germantown, MD

Average cloud cover in August - Germantown, MD
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Germantown, MD

Average visibility in August - Germantown, 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).

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Germantown, Maryland, USA

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