August weather forecast
Gwynedd, PA

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Weather in August

August, the last month of the summer in Gwynedd, is another warm month, with an average temperature ranging between min 65.3°F (18.5°C) and max 82.8°F (28.2°C).

Temperature

The advent of August presents an average high-temperature of a still moderately hot 82.8°F (28.2°C), maintaining a close correlation with the preceding month. Throughout the month of August, Gwynedd witnesses an average low-temperature of 65.3°F (18.5°C).

Heat index

In August, the average heat index is estimated at a tropical 87.8°F (31°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

April, July and August, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Gwynedd, in August, during 12.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Gwynedd, during the entire year, the rain falls for 116.6 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

June through October are months without snowfall in Gwynedd, Pennsylvania.

Daylight

In August, the average length of the day is 13h and 43min.
On the first day of August in Gwynedd, sunrise is at 5:59 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:33 pm EDT.

Sunshine

In August, the average sunshine in Gwynedd is 10.1h.

UV index

The months with the highest UV index in Gwynedd are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

How hot does it get in Gwynedd in August?

In August, in Gwynedd, the average high-temperature is 82.8°F (28.2°C), and the average low-temperature is 65.3°F (18.5°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What are the least humid months in Gwynedd?

The months with the lowest humidity in Gwynedd are April, July and August, with an average relative humidity of 73%.

What is the average humidity in August in Gwynedd?

The average relative humidity in August in Gwynedd is 73%.

How many days does it rain in August in Gwynedd?

In Gwynedd, Pennsylvania, during August, the rain falls for 12.4 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When it does not snow in Gwynedd?

In Gwynedd, Pennsylvania, snow does not fall in June through October.

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

In August, the average day length in Gwynedd, Pennsylvania, is 13h and 43min.

When is the sunrise / sunset in August in Gwynedd?

On the first day of August in Gwynedd, Pennsylvania, sunrise is at 5:59 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:33 pm EDT.

How long on average sun shines in August in Gwynedd?

In August, the average sunshine duration is 10.1h.

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

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

How high is the UV index in August in Gwynedd?

In Gwynedd, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from 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
Gwynedd, PA

Average temperature in August - Gwynedd, PA
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in August: 65.3°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 (23.5°F).

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Average pressure in August
Gwynedd, PA

Average pressure in August - Gwynedd, 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
Gwynedd, PA

Average wind speed in August - Gwynedd, PA
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in August
Gwynedd, PA

Average humidity in August - Gwynedd, PA
  • Average humidity in August: 73%

The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April, July and August (73%).

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Average rainfall in August
Gwynedd, PA

Average rainfall in August - Gwynedd, PA
  • Average rainfall in August: 1.26"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.59").

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Average rainfall days in August
Gwynedd, PA

Average rainfall days in August - Gwynedd, PA
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is July (13.8 days).
The months with the least rainy days are January and February (6.3 days).

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Average snowfall in August
Gwynedd, PA

Average snowfall in August - Gwynedd, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.02").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Gwynedd, PA

Average snowfall days in August - Gwynedd, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.6 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
Gwynedd, PA

Average daylight in August / Average sunshine in August - Gwynedd, 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 24min).

  • Average sunshine in August: 10h and 1min

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 42min).

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Average sunshine days in August
Gwynedd, PA

Average sunshine days in August - Gwynedd, PA
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (13.9 days).

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Average UV index in August
Gwynedd, PA

Average UV index in August - Gwynedd, 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, March, November and December (UV index 2).

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Average cloud cover in August
Gwynedd, PA

Average cloud cover in August - Gwynedd, PA
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in August
Gwynedd, PA

Average visibility in August - Gwynedd, PA
  • Average visibility in August: 6mi

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

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Gwynedd, Pennsylvania, USA

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