August weather forecastCallahan, FL
August
Weather in August
The last month of the summer, August, is another hot month in Callahan, Florida, with an average temperature fluctuating between 76.5°F (24.7°C) and 90.9°F (32.7°C).Temperature
Callahan's August average high-temperature settles at a still hot 90.9°F (32.7°C), showing a near match with the preceding month. Callahan's nights in August experience an average temperature drop to a warm 76.5°F (24.7°C).Heat index
August's mean heat index is calculated to be a burning hot 113°F (45°C). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.Data suggests that the heat index is set for environments in shade and with a light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In August, the average relative humidity is 75%.Rainfall
The month with the most rainfall is August, when the rain falls for 22.6 days and typically aggregates up to 4.09" (104mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in August is 13h and 13min.On the first day of the month, sunrise is at 6:45 am and sunset at 8:21 pm. On the last day of August, sunrise is at 7:03 am and sunset at 7:51 pm EDT.
Sunshine
In August, the average sunshine is 10.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 in August converts into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Callahan, FL
- Average high temperature in August: 90.9°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (63°F).
- Average low temperature in August: 76.5°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (46.8°F).
Average pressure in August
Callahan, FL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in August
Callahan, FL
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in August
Callahan, FL
- Average humidity in August: 75%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in August
Callahan, FL
- Average rainfall in August: 4.09"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in August
Callahan, FL
- Average rainfall days in August: 22.6 days
The month with the highest number of rainy days is August (22.6 days).
The month with the least rainy days is November (8.7 days).
Average snowfall days in August
Callahan, FL
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Callahan, FL
- 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in August
Callahan, FL
- Average sunshine days in August: 6.8 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in August
Callahan, FL
- 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
Callahan, FL
- Average cloud cover in August: 30
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in August
Callahan, 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).
