August weather forecast
Port Royal, PA

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Weather in August

August, the last month of the summer in Port Royal, is another warm month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 81.1°F (27.3°C).

Temperature

Port Royal indicates an average high-temperature of a still moderately hot 81.1°F (27.3°C) in August, showing minor variation from July's 83.5°F (28.6°C). Despite higher daytime temperatures, nighttime averages fall to a refreshing 58.5°F (14.7°C) in August.

Heat index

For most parts of August, the heat index is estimated at a tropical 86°F (30°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Port Royal, the average relative humidity in August is 77%.

Rainfall

In Port Royal, during August, the rain falls for 17 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Port Royal, during the entire year, the rain falls for 162 days and collects up to 28.86" (733mm) of precipitation.

Snowfall

In Port Royal, snow does not fall in June through September.

Daylight

In Port Royal, the average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 6:07 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:42 pm EDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 5 suggests these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The high-temperature, in August, in Port Royal, is 81.1°F (27.3°C), while the low-temperature averages to 58.5°F (14.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 77%.

How many days does it rain in August?

In August, the rain falls for 17 days. Throughout August, 2.64" (67mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Port Royal have in August?

In August, the average day length in Port Royal is 13h and 44min.

When are sunrise and sunset in August?

On the first day of August in Port Royal, sunrise is at 6:07 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:42 pm EDT.

How long on average sun shines in August?

In Port Royal, the average sunshine duration in August is 9.9h.

How high is the UV index in August?

In Port Royal, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Port Royal, PA

Average temperature in August - Port Royal, PA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in August: 58.5°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in August
Port Royal, PA

Average pressure in August - Port Royal, PA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Port Royal, PA

Average wind speed in August - Port Royal, PA
  • Average wind speed in August: 4.4mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in August
Port Royal, PA

Average humidity in August - Port Royal, PA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall in August
Port Royal, PA

Average rainfall in August - Port Royal, PA
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January and November (1.85").

Average rainfall days in August
Port Royal, PA

Average rainfall days in August - Port Royal, PA
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.8 days).

Average snowfall in August
Port Royal, PA

Average snowfall in August - Port Royal, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Port Royal, PA

Average snowfall days in August - Port Royal, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Port Royal, PA

Average daylight in August / Average sunshine in August - Port Royal, PA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Port Royal, PA

Average sunshine days in August - Port Royal, PA
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in August
Port Royal, PA

Average UV index in August - Port Royal, PA
  • Average UV index in August: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in August
Port Royal, PA

Average cloud cover in August - Port Royal, PA
  • Average cloud cover in August: 35

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in August
Port Royal, PA

Average visibility in August - Port Royal, PA
  • Average visibility in August: 5mi

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

Port Royal, Pennsylvania, USA

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