August weather forecastMiami, AZ
August
Weather in August
August, the last month of the summer in Miami, is also a hot month, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 91.9°F (33.3°C).Temperature
The onset of August brings with it an average high-temperature of a still tropical 91.9°F (33.3°C), showing a negligible variation from the month before. In August, Miami experiences a temperature dip to an average of 73.2°F (22.9°C) at night.Heat index
August's average heat index is calculated to be a hot 93.2°F (34°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
In Miami, the average relative humidity in August is 40%.Rainfall
The month with the most rainfall is August, when the rain falls for 15.9 days and typically aggregates up to 2.28" (58mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in August is 13h and 21min.On the first day of the month, sunrise is at 5:36 am and sunset at 7:22 pm. On the last day of August, in Miami, sunrise is at 5:57 am and sunset at 6:49 pm MST.
Sunshine
The month with the most sunshine is August, with an average of 12.2h of sunshine.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 7 in August translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Miami, AZ
- Average high temperature in August: 91.9°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in August: 73.2°F
The month with the highest average low temperature is August (73.2°F).
The coldest months (with the lowest average low temperature) are January and December (38.3°F).
Average pressure in August
Miami, AZ
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Miami, AZ
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Miami, AZ
- Average humidity in August: 40%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is June (21%).
Average rainfall in August
Miami, AZ
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in August
Miami, AZ
- Average rainfall days in August: 15.9 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is June (3.5 days).
Average snowfall in August
Miami, AZ
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Miami, AZ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (1.8 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
Miami, AZ
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 12min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in August
Miami, AZ
- Average sunshine days in August: 10.3 days
The month with the most sunshine days is March (26 days).
The month with the least sunshine days is July (10 days).
Average UV index in August
Miami, AZ
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Miami, AZ
- Average cloud cover in August: 16
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in August
Miami, AZ
- 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).





