August weather forecast and climate
Mountain Island, NC

Weather in August

August, the last month of the summer, in Mountain Island, is also a hot month, with average temperature ranging between min 67.8°F (19.9°C) and max 88.3°F (31.3°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still hot 88.3°F (31.3°C). In August, the average low-temperature is 67.8°F (19.9°C).

Heat index

The average heat index is evaluated at a torrid 102.4°F (39.1°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In August, the average relative humidity is 72%.

Rainfall

August is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In August, the average length of the day is 13.4h.

Sunshine

In Mountain Island, the average sunshine is 10.3h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Mountain Island?

In Mountain Island, North Carolina, in August, the average high-temperature is 88.3°F (31.3°C), and the average low-temperature is 67.8°F (19.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 102.4°F (39.1°C).

What is the average humidity in August in Mountain Island?

The average relative humidity in August in Mountain Island is 72%.

What is the rainiest month in Mountain Island?

The month with the most rainfall is August when the rain falls for 17.8 days and typically aggregates up to 3.43" (87mm) of precipitation.

How much does it rain in Mountain Island in August?

In Mountain Island, in August, during 17.8 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow in Mountain Island?

In Mountain Island snow does not fall in April through October.

What is the average length of the day in August in Mountain Island?

In August, the average length of the day is 13.4h.

How long on average sun shines in August in Mountain Island?

In August, the average sunshine is 10.3h.

What are the months with the highest UV index in Mountain Island?

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

How high is the UV index in August in Mountain Island?

In August, the average daily maximum UV index in Mountain Island is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in August
Mountain Island, NC

Average temperature in August - Mountain Island, NC
  • Average high temperature in August: 88.3°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (47.8°F).

  • Average low temperature in August: 67.8°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in August
Mountain Island, NC

Average pressure in August - Mountain Island, NC
  • Average pressure in August: 30.01"

The month with the highest atmospheric pressure is November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in August
Mountain Island, NC

Average wind speed in August - Mountain Island, NC
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in August
Mountain Island, NC

Average humidity in August - Mountain Island, NC
  • Average humidity in August: 72%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in August
Mountain Island, NC

Average rainfall in August - Mountain Island, NC
  • Average rainfall in August: 3.43"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (1.93").

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Average rainfall days in August
Mountain Island, NC

Average rainfall days in August - Mountain Island, NC
  • Average rainfall days in August: 17.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in August
Mountain Island, NC

Average snowfall in August - Mountain Island, NC
  • Average snowfall in August: 0"

The month with the highest snowfall is December (2.01").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Mountain Island, NC

Average snowfall days in August - Mountain Island, NC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Mountain Island, NC

Average daylight in August / Average sunshine in August - Mountain Island, NC
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in August: 10.3h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in August
Mountain Island, NC

Average sunshine days in August - Mountain Island, NC
  • Average sunshine days in August: 11.3 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in August
Mountain Island, NC

Average UV index in August - Mountain Island, NC
  • Average UV index in August: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in August
Mountain Island, NC

Average cloud cover in August - Mountain Island, NC
  • Average cloud cover in August: 33

The month with the most cloud cover is December (Cloud cover 43).
Months with the least cloud cover are June and July (Cloud cover 30).

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Average visibility in August
Mountain Island, NC

Average visibility in August - Mountain Island, NC
  • Average visibility in August: 6mi

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

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