August weather forecast
Marcus Hook, PA

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Weather in August

The last month of the summer, August, is another warm month in Marcus Hook, Pennsylvania, with an average temperature ranging between max 83.5°F (28.6°C) and min 67.3°F (19.6°C).

Temperature

August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 83.5°F (28.6°C) from July's 85.6°F (29.8°C). Marcus Hook, during the month of August, experiences an average low-temperature of 67.3°F (19.6°C).

Heat index

For most parts of August, the heat index is calculated to be a tropical 89.6°F (32°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In Marcus Hook, the average relative humidity in August is 73%.

Rainfall

The month with the most rainfall in Marcus Hook is August, when the rain falls for 16.1 days and typically aggregates up to 3.11" (79mm) of precipitation.

Snowfall

June through October are months without snowfall.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 75.9°F (24.4°C).
Note: The allure of a swim in 75.9°F (24.4°C) waters can be influenced by your feelings towards the cold, today's sunshine, the wind's touch, and the ambient warmth. To put it in perspective, Olympic standards demand water temperatures of 77°F (25°C) to 82.4°F (28°C).

Daylight

In August, the average length of the day in Marcus Hook is 13h and 41min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

Sunshine

In August, the average sunshine in Marcus Hook is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
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Frequently asked questions

How hot does it get in Marcus Hook in August?

The high-temperature in Marcus Hook, Pennsylvania, during August is 83.5°F (28.6°C) and the low-temperature is 67.3°F (19.6°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the average humidity in August in Marcus Hook?

In August, the average relative humidity in Marcus Hook is 73%.

What is the wettest month in Marcus Hook?

The month with the most rainfall in Marcus Hook, Pennsylvania, is August, when the rain falls for 16.1 days and typically aggregates up to 3.11" (79mm) of precipitation.

How much does it rain in Marcus Hook in August?

In Marcus Hook, Pennsylvania, in August, it is raining for 16.1 days, with typically 3.11" (79mm) of accumulated precipitation.

When it does not snow in Marcus Hook?

June through October are months without snowfall.

What is the month with the warmest ocean in Marcus Hook?

The month with the warmest seawater in Marcus Hook, Pennsylvania, is August, with an average ocean temperature of 75.9°F (24.4°C).

How warm is the water in August in Marcus Hook?

In August, the average ocean temperature in Marcus Hook is 75.9°F (24.4°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75.9°F (24.4°C) water may be enjoyable.

What is the average length of the day in August in Marcus Hook?

In August, the average day length is 13h and 41min.

When is the sunrise / sunset in August in Marcus Hook?

On the first day of August in Marcus Hook, sunrise is at 6:01 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

How many hours of sunshine does Marcus Hook have in August?

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

When is the highest UV index in Marcus Hook?

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

What is the UV index reading in August in Marcus Hook?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Marcus Hook, PA

Average temperature in August - Marcus Hook, PA
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in August: 67.3°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 (25.7°F).

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Average pressure in August
Marcus Hook, PA

Average pressure in August - Marcus Hook, PA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Marcus Hook, PA

Average wind speed in August - Marcus Hook, PA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in August
Marcus Hook, PA

Average humidity in August - Marcus Hook, PA
  • Average humidity in August: 73%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in August
Marcus Hook, PA

Average rainfall in August - Marcus Hook, PA
  • Average rainfall in August: 3.11"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in August
Marcus Hook, PA

Average rainfall days in August - Marcus Hook, PA
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in August
Marcus Hook, PA

Average snowfall in August - Marcus Hook, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Marcus Hook, PA

Average snowfall days in August - Marcus Hook, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in August
Marcus Hook, PA

Average sea temperature in August - Marcus Hook, PA
  • Average sea temperature in August: 75.9°F

The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

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Average daylight in August /
Average sunshine in August
Marcus Hook, PA

Average daylight in August / Average sunshine in August - Marcus Hook, PA
  • 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 24min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Marcus Hook, PA

Average sunshine days in August - Marcus Hook, PA
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in August
Marcus Hook, PA

Average UV index in August - Marcus Hook, PA
  • 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
Marcus Hook, PA

Average cloud cover in August - Marcus Hook, PA
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Marcus Hook, PA

Average visibility in August - Marcus Hook, PA
  • 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).

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Marcus Hook, Pennsylvania, USA

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