August weather forecastSunrise Key, FL
August
Weather in August
The last month of the summer, August, is another hot month in Sunrise Key, Florida, with an average temperature ranging between min 82°F (27.8°C) and max 87.4°F (30.8°C).Temperature
Sunrise Key witnesses the warmest weather in August, with temperatures averaging a high of 87.4°F (30.8°C) and a low of 82°F (27.8°C).Heat index
In August, the heat index is estimated at a fiery hot 100.4°F (38°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 largely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
The average relative humidity in August is 72%.Rainfall
August is the month with the most rainfall. Rain falls for 22.3 days and accumulates 2.68" (68mm) of precipitation.Daylight
The average length of the day in August in Sunrise Key is 13h and 2min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:06 pm. On the last day of August, sunrise is at 7:00 am and sunset at 7:40 pm EDT.
Sunshine
In August, the average sunshine is 10.7h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: During August, 7 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sunrise Key, FL
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (73°F).
- Average low temperature in August: 82°F
The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).
Average pressure in August
Sunrise Key, FL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in August
Sunrise Key, FL
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is March (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in August
Sunrise Key, FL
- Average humidity in August: 72%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (69%).
Average rainfall in August
Sunrise Key, FL
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in August
Sunrise Key, FL
- Average rainfall days in August: 22.3 days
The month with the highest number of rainy days is September (23.6 days).
The month with the least rainy days is February (8.3 days).
Average daylight in August /
Average sunshine in August
Sunrise Key, FL
- Average daylight in August: 13h and 0min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in August: 10h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).
Average sunshine days in August
Sunrise Key, FL
- Average sunshine days in August: 4.2 days
The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is September (3.9 days).
Average UV index in August
Sunrise Key, FL
- Average UV index in August: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in August
Sunrise Key, FL
- Average cloud cover in August: 29
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 27).
Average visibility in August
Sunrise Key, FL
- 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).





