Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
With the onset of August, the average high-temperature stands at a still hot 89.2°F (31.8°C), closely aligned with July's 89.4°F (31.9°C). During August, Jacksonville Beach experiences a consistent low-temperature average of 77.5°F (25.3°C).Heat index
August's heat index is estimated at an extremely hot 107.6°F (42°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
August and December, with an average relative humidity of 76%, are the most humid months.Rainfall
August is the month with the most rainfall in Jacksonville Beach. Rain falls for 25.3 days and accumulates 4.8" (122mm) of precipitation.Snowfall
In Jacksonville Beach, snow does not fall in February through November.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 83.1°F (28.4°C).Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.
Daylight
The average length of the day in August in Jacksonville Beach is 13h and 13min.On the first day of August, sunrise is at 6:44 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:49 pm EDT.
Sunshine
In Jacksonville Beach, the average sunshine in August is 10.6h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 7 during August translates into the following guidance:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Frequently asked questions
How hot is August in Jacksonville Beach?
What is the most humid month in Jacksonville Beach?
What is the average humidity in August in Jacksonville Beach?
What is the rainiest month in Jacksonville Beach?
How much does it rain in Jacksonville Beach in August?
When it does not snow in Jacksonville Beach?
When is the ocean warmest in Jacksonville Beach?
What is the ocean temperature in August in Jacksonville Beach?
What is the average length of the day in August in Jacksonville Beach?
When is the sunrise / sunset in August in Jacksonville Beach?
How long on average sun shines in August in Jacksonville Beach?
What is the month with the highest UV index in Jacksonville Beach?
What is the UV index reading in August in Jacksonville Beach?
Average temperature in August
Jacksonville Beach, FL
- Average high temperature in August: 89.2°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (63.3°F).
- Average low temperature in August: 77.5°F
The months with the highest average low temperature are July and August (77.5°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in August
Jacksonville Beach, 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 August and September (29.98"Hg).
Average wind speed in August
Jacksonville Beach, FL
- Average wind speed in August: 6.5mph
The windiest months (with the highest average wind speed) are January, March, April, October and November (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Jacksonville Beach, FL
- Average humidity in August: 76%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall in August
Jacksonville Beach, FL
- Average rainfall in August: 4.8"
The wettest month (with the highest rainfall) is August (4.8").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in August
Jacksonville Beach, FL
- Average rainfall days in August: 25.3 days
The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is February (9.8 days).
Average snowfall days in August
Jacksonville Beach, FL
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in August
Jacksonville Beach, FL
- Average sea temperature in August: 83.2°F
The best month for swimming (with the highest average sea temperature) is August (83.2°F).
The coldest months (with the lowest average sea temperature) are January and February (60.7°F).
Average daylight in August /
Average sunshine in August
Jacksonville Beach, FL
- Average daylight in August: 13h and 1min
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 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in August
Jacksonville Beach, FL
- Average sunshine days in August: 4.2 days
The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in August
Jacksonville Beach, 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 4).
Average cloud cover in August
Jacksonville Beach, FL
- Average cloud cover in August: 29
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in August
Jacksonville Beach, 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).
Jacksonville Beach, Florida, USA
Weather forecast for your location
2. Allow the app to use your location
