August weather forecastLisbon, FL
August
Weather in August
The last month of the summer, August, is another tropical month in Lisbon, Florida, with temperature in the range of an average high of 90.7°F (32.6°C) and an average low of 75.6°F (24.2°C).Temperature
August, with its high-temperature average of 90.7°F (32.6°C) and a low-temperature average of 75.6°F (24.2°C), is the warmest month.Heat index
August's heat index is appraised at a blazing hot 114.8°F (46°C). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.Remember that heat index calculations are made for conditions in the shade with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
July through September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Lisbon, in August, during 28.6 rainfall days, 6.26" (159mm) of precipitation is typically accumulated. In Lisbon, Florida, during the entire year, the rain falls for 200.1 days and collects up to 39.06" (992mm) of precipitation.Daylight
In August, the average length of the day is 13h and 9min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:18 pm. On the last day of August, in Lisbon, sunrise is at 7:04 am and sunset at 7:49 pm EDT.
Sunshine
In August, the average sunshine is 10h.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 threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 7 during August leads to these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lisbon, FL
- Average high temperature in August: 90.7°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (67.1°F).
- Average low temperature in August: 75.6°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in August
Lisbon, FL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in August
Lisbon, FL
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in August
Lisbon, FL
- Average humidity in August: 78%
The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in August
Lisbon, FL
- Average rainfall in August: 6.26"
The wettest month (with the highest rainfall) is July (6.77").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in August
Lisbon, FL
- Average rainfall days in August: 28.6 days
The month with the highest number of rainy days is August (28.6 days).
The month with the least rainy days is November (9.3 days).
Average daylight in August /
Average sunshine in August
Lisbon, FL
- Average daylight in August: 13h and 6min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in August: 10h and 0min
The months with the most sunshine are May and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in August
Lisbon, FL
- Average sunshine days in August: 1 days
The months with the most sunshine days are January and December (19.3 days).
The month with the least sunshine days is August (1 days).
Average UV index in August
Lisbon, FL
- Average UV index in August: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in August
Lisbon, FL
- Average cloud cover in August: 32
The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in August
Lisbon, 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).





