July weather forecastJacksonville Beach, FL

July
Weather in July
July, like June, is a hot summer month in Jacksonville Beach, Florida, with an average temperature ranging between min 77.5°F (25.3°C) and max 89.4°F (31.9°C).Temperature
July is the month when Jacksonville Beach sees the highest average temperatures, with a high of 89.4°F (31.9°C) and a low of 77.5°F (25.3°C).Heat index
July's average heat index is calculated to be an extremely hot 107.6°F (42°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In July, the average relative humidity is 75%.Rainfall
In Jacksonville Beach, during July, the rain falls for 23.3 days and regularly aggregates up to 3.94" (100mm) of precipitation. In Jacksonville Beach, during the entire year, the rain falls for 185.5 days and collects up to 31.54" (801mm) of precipitation.Snowfall
February through November are months without snowfall in Jacksonville Beach.Ocean temperature
In July, the average ocean temperature is 82°F (27.8°C).Note: Temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.
Daylight
In Jacksonville Beach, the average length of the day in July is 13h and 53min.On the first day of July, sunrise is at 6:27 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 8:19 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 11h of sunshine.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 hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 7 during July translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Jacksonville Beach, FL
- Average high temperature in July: 89.4°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 July: 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 July
Jacksonville Beach, FL
- Average pressure in July: 30.01"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 July
Jacksonville Beach, FL
- Average wind speed in July: 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 July
Jacksonville Beach, FL
- Average humidity in July: 75%
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 July
Jacksonville Beach, FL
- Average rainfall in July: 3.94"
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 July
Jacksonville Beach, FL
- Average rainfall days in July: 23.3 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 July
Jacksonville Beach, FL
- Average snowfall days in July: 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 July
Jacksonville Beach, FL
- Average sea temperature in July: 82°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 July /
Average sunshine in July
Jacksonville Beach, FL
- Average daylight in July: 13h and 54min
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 July: 11h and 0min
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 July
Jacksonville Beach, FL
- Average sunshine days in July: 5.3 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 July
Jacksonville Beach, FL
- Average UV index in July: 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 July
Jacksonville Beach, FL
- Average cloud cover in July: 28
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 July
Jacksonville Beach, FL
- Average visibility in July: 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).





