August weather forecast
Swannanoa, NC

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Weather in August

The last month of the summer, August, is another warm month in Swannanoa, North Carolina, with an average temperature ranging between max 82.4°F (28°C) and min 60.4°F (15.8°C).

Temperature

Swannanoa registers an average high-temperature of a still moderately hot 82.4°F (28°C) with the arrival of August, showing minor deviation from the preceding month. Despite a significant daily temperature range, Swannanoa's temperature falls to a steady low-temperature average of 60.4°F (15.8°C) in August.

Heat index

For most parts of August, the heat index is evaluated at a hot 89.6°F (32°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In Swannanoa, North Carolina, the average relative humidity in August is 76%.

Rainfall

In August, the rain falls for 17 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. In Swannanoa, during the entire year, the rain falls for 156.4 days and collects up to 27.8" (706mm) of precipitation.

Snowfall

In Swannanoa, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 28min.
On the first day of the month, sunrise is at 6:38 am and sunset at 8:33 pm. On the last day of August, sunrise is at 7:01 am and sunset at 7:57 pm EDT.

Sunshine

In August, the average sunshine in Swannanoa is 10.4h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In Swannanoa, in August, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 89.6°F (32°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How many days does it rain in August?

In Swannanoa, in August, it is raining for 17 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

In Swannanoa, North Carolina, the average day length in August is 13h and 28min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:38 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 7:57 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.4h.

When is the highest UV index?

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

How high is the UV index in August?

The average daily maximum UV index in August in Swannanoa, North Carolina, is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Swannanoa, NC

Average temperature in August - Swannanoa, NC
  • Average high temperature in August: 82.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in August
Swannanoa, NC

Average pressure in August - Swannanoa, NC
  • Average pressure in August: 30.02"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in August
Swannanoa, NC

Average wind speed in August - Swannanoa, NC
  • Average wind speed in August: 3.4mph

The windiest months (with the highest average wind speed) are January, February and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in August
Swannanoa, NC

Average humidity in August - Swannanoa, NC
  • Average humidity in August: 76%

The months with the highest relative humidity are May and September (78%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in August
Swannanoa, NC

Average rainfall in August - Swannanoa, NC
  • Average rainfall in August: 2.28"

The wettest months (with the highest rainfall) are April and December (3.07").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Swannanoa, NC

Average rainfall days in August - Swannanoa, NC
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in August
Swannanoa, NC

Average snowfall in August - Swannanoa, NC
  • Average snowfall in August: 0"

The month with the highest snowfall is December (4.37").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Swannanoa, NC

Average snowfall days in August - Swannanoa, NC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.2 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
Swannanoa, NC

Average daylight in August / Average sunshine in August - Swannanoa, NC
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in August
Swannanoa, NC

Average sunshine days in August - Swannanoa, NC
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in August
Swannanoa, NC

Average UV index in August - Swannanoa, NC
  • Average UV index in August: 6

The months with the highest UV index are 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
Swannanoa, NC

Average cloud cover in August - Swannanoa, NC
  • Average cloud cover in August: 33

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Swannanoa, NC

Average visibility in August - Swannanoa, NC
  • Average visibility in August: 6mi

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

Swannanoa, North Carolina, USA

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