August weather forecastDauphin Island, AL
August
Weather in August
August in Dauphin Island experiences a continuation of the sizzling July weather, with the hottest average minimum temperature of the year at 78.8°F (26°C). Skies remain dotted with clouds most of the time, designating a high level of humidity. It is also noteworthy that despite being one of the hottest months, the rainfall is substantial. The sea temperature hovers around its warmest, jazzing up all water-based exploits. In essence, August holds onto the heat of the summer while subtly heralding the incoming fall.Temperature
During the warmest month, August, temperatures average a high of 88.7°F (31.5°C) and a low of 78.8°F (26°C).Heat index
The heat index for August is appraised at a blisteringly hot 104°F (40°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Heat index details are generally centered around shaded locations and a mild breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In Dauphin Island, the average relative humidity in August is 74%.Rainfall
The month with the most rainfall is August, when the rain falls for 24.8 days and typically aggregates up to 6.89" (175mm) of precipitation.Snowfall
February through December are months without snowfall.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 86.5°F (30.3°C).Note: Engaging in water activities in temperatures beyond 86°F (30°C) might not feel as reinvigorating.
Daylight
In Dauphin Island, Alabama, the average length of the day in August is 13h and 13min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:45 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:15 pm CDT.
Sunshine
In August, the average sunshine is 10.8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the average maximum UV index of 7 translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in August
Dauphin Island, AL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
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).
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%).
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").
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).
Average snowfall in August
Dauphin Island, AL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
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).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
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).
Average daylight in August /
Average sunshine in August
Dauphin Island, AL
- Average daylight in August: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in August: 10h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The months with the least sunshine are February and December (Average sunshine: 5h and 30min).
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).
Average UV index in August
Dauphin Island, AL
- Average UV index in August: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
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).
Average visibility in August
Dauphin Island, AL
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
