August weather forecast and climate
Dauphin Island, AL

The scenic Dauphin Island in Alabama
The scenic Dauphin Island in Alabama

Weather in August

August, the last month of the summer, in Dauphin Island, is another hot month, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 78.8°F (26°C).

Temperature

August is the warmest month, with an average high-temperature of 88.7°F (31.5°C) and an average low-temperature of 78.8°F (26°C).

Heat index

The average heat index in August is evaluated at a scorching 104.5°F (40.3°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, pregnancy, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. 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 particularly important for children. 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. 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 Dauphin Island, the average relative humidity is 74%.

Rainfall

August is the month with the most rainfall in Dauphin Island. Rain falls for 24.8 days and accumulates 6.89" (175mm) of precipitation.

Snowfall

In Dauphin Island snow does not fall in February through December.

Ocean temperature

August is the month with the warmest seawater in Dauphin Island, with an average ocean temperature of 86.5°F (30.3°C).
Note: For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

Daylight

In August, the average length of the day in Dauphin Island is 13.2h.

Sunshine

In August, the average sunshine is 10.8h.

UV index

Months with the highest UV index in Dauphin Island are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the warmest month in Dauphin Island?

August is the warmest month in Dauphin Island, Alabama, with an average high-temperature of 88.7°F (31.5°C) and an average low-temperature of 78.8°F (26°C).

What is the temperature in August in Dauphin Island?

In Dauphin Island, Alabama, in August, the average high-temperature is 88.7°F (31.5°C), and the average low-temperature is 78.8°F (26°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines relative humidity and air temperature, is estimated at 104.5°F (40.3°C).

What is the average humidity in August in Dauphin Island?

In August, the average relative humidity is 74%.

How many days does it rain in August in Dauphin Island?

In Dauphin Island, Alabama, in August, it is raining for 24.8 days, with typically 6.89" (175mm) of accumulated precipitation.

What is the wettest month in Dauphin Island?

August is the month with the most rainfall in Dauphin Island. Rain falls for 24.8 days and accumulates 6.89" (175mm) of precipitation.

When it does not snow in Dauphin Island?

In Dauphin Island snow does not fall in February through December.

What month is the ocean warmest in Dauphin Island?

The month with the warmest seawater in Dauphin Island is August, with an average ocean temperature of 86.5°F (30.3°C).

What is the ocean temperature in August in Dauphin Island?

In Dauphin Island, Alabama, the average seawater temperature in August is 86.5°F (30.3°C). For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

How many hours of daylight does Dauphin Island have in August?

The average length of the day in August in Dauphin Island is 13.2h.

How many hours of sunshine does Dauphin Island have in August?

In August, the average sunshine in Dauphin Island is 10.8h.

What is the month with the highest UV index in Dauphin Island?

May through August, with an average maximum UV index of 7, are months with the highest UV index in Dauphin Island.

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

In Dauphin Island, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in August
Dauphin Island, AL

Average temperature in August - Dauphin Island, AL
  • Average high temperature in August: 88.7°F

The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in August: 78.8°F

The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).

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Average pressure in August
Dauphin Island, AL

Average pressure in August - Dauphin Island, AL
  • Average pressure in August: 29.97"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

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Average wind speed in August
Dauphin Island, AL

Average wind speed in August - Dauphin Island, AL
  • Average wind speed in August: 6.9mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in August
Dauphin Island, AL

Average humidity in August - Dauphin Island, AL
  • Average humidity in August: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Dauphin Island, AL

Average rainfall in August - Dauphin Island, AL
  • Average rainfall in August: 6.89"

The wettest month (with the highest rainfall) is August (6.89").
The driest month (with the least rainfall) is November (2.28").

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Average rainfall days in August
Dauphin Island, AL

Average rainfall days in August - Dauphin Island, AL
  • Average rainfall days in August: 24.8 days

The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in August
Dauphin Island, AL

Average snowfall in August - Dauphin Island, AL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.12").
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Dauphin Island, AL

Average snowfall days in August - Dauphin Island, AL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.1 days).
Months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average sea temperature in August
Dauphin Island, AL

Average sea temperature in August - Dauphin Island, AL
  • Average sea temperature in August: 86.6°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest month (with the lowest average sea temperature) is January (58.7°F).

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Average daylight in August /
Average sunshine in August
Dauphin Island, AL

Average daylight in August / Average sunshine in August - Dauphin Island, AL
  • Average daylight in August: 13.2h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in August: 10.8h

The month with the most sunshine is June (Average sunshine: 11.2h).
Months with the least sunshine are February and December (Average sunshine: 5.5).

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Average sunshine days in August
Dauphin Island, AL

Average sunshine days in August - Dauphin Island, AL
  • Average sunshine days in August: 4.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (3.9 days).

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Average UV index in August
Dauphin Island, AL

Average UV index in August - Dauphin Island, AL
  • Average UV index in August: 7

Months with the highest UV index are May, June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 4).

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Average cloud cover in August
Dauphin Island, AL

Average cloud cover in August - Dauphin Island, AL
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 22).

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Average visibility in August
Dauphin Island, AL

Average visibility in August - Dauphin Island, AL
  • 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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