August weather forecast and climate
Key, AL

Weather in August

August, the last month of the summer, in Key, is also a hot month, with average temperature fluctuating between 68°F (20°C) and 87.6°F (30.9°C).

Temperature

In Key, the average high-temperature is essentially the same as in July - a still tropical 87.6°F (30.9°C). The average low-temperature, in Key, is 68°F (20°C).

Heat index

In August, the average heat index is appraised at a torrid 102°F (38.9°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the 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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, pregnancy). 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In Key, during August, the rain falls for 19.7 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, in Key, there are 181.2 rainfall days, and 41.06" (1043mm) of precipitation is accumulated.

Snowfall

In Key, Alabama, snow does not fall in April through October.

Daylight

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

Sunshine

In August, the average sunshine in Key is 10.2h.

UV index

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 vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in August in Key?

In Key, Alabama, in August, the average high-temperature is 87.6°F (30.9°C), and the average low-temperature is 68°F (20°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines air temperature and relative humidity, is evaluated at 102°F (38.9°C).

What is the average humidity in August in Key?

In August, the average relative humidity in Key, Alabama, is 75%.

How many days does it rain in August in Key?

In August, in Key, Alabama, the rain falls for 19.7 days. Throughout August, 3.86" (98mm) of precipitation is accumulated.

When it does not snow in Key?

In Key, Alabama, snow does not fall in April through October.

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

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

How long on average sun shines in August in Key?

In August, the average sunshine in Key is 10.2h.

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

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

What is the UV index intensity in August in Key?

The average daily maximum UV index in August in Key is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in August
Key, AL

Average temperature in August - Key, AL
  • Average high temperature in August: 87.6°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (48.9°F).

  • Average low temperature in August: 68°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

[Resources]

Average pressure in August
Key, AL

Average pressure in August - Key, AL
  • Average pressure in August: 30"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

[Resources]

Average wind speed in August
Key, AL

Average wind speed in August - Key, AL
  • Average wind speed in August: 4.1mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

[Resources]

Average humidity in August
Key, AL

Average humidity in August - Key, AL
  • Average humidity in August: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

[Resources]

Average rainfall in August
Key, AL

Average rainfall in August - Key, AL
  • Average rainfall in August: 3.86"

The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is October (2.56").

[Resources]

Average rainfall days in August
Key, AL

Average rainfall days in August - Key, AL
  • Average rainfall days in August: 19.7 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (9.8 days).

[Resources]

Average snowfall in August
Key, AL

Average snowfall in August - Key, AL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.79").
Months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in August
Key, AL

Average snowfall days in August - Key, AL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Key, AL

Average daylight in August / Average sunshine in August - Key, AL
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 10.2h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

[Resources]

Average sunshine days in August
Key, AL

Average sunshine days in August - Key, AL
  • Average sunshine days in August: 8.6 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).

[Resources]

Average UV index in August
Key, AL

Average UV index in August - Key, AL
  • 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).

[Resources]

Average cloud cover in August
Key, AL

Average cloud cover in August - Key, AL
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).

[Resources]

Average visibility in August
Key, AL

Average visibility in August - Key, AL
  • Average visibility in August: 6mi

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

[Resources]