July weather forecastSaint James City, FL
July
Weather in July
July, the same as June, in Saint James City, Florida, is another tropical summer month, with an average temperature fluctuating between 80.4°F (26.9°C) and 87.4°F (30.8°C).Temperature
In July, Saint James City notes an average high-temperature of a still tropical 87.4°F (30.8°C), hardly different from the preceding month. Saint James City experiences a steady nighttime temperature of 80.4°F (26.9°C) throughout the month of July.Heat index
July's average heat index is calculated to be a sweltering 100.4°F (38°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. 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. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In July, the average relative humidity is 73%.Rainfall
In Saint James City, in July, during 17.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, in Saint James City, there are 122 rainfall days, and 8.98" (228mm) of precipitation is accumulated.Ocean temperature
In Saint James City, the average seawater temperature in July is 85.5°F (29.7°C).Note: Swimming, diving, and other water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are highly enjoyable and provide prolonged comfort without unease.
Daylight
The average length of the day in July in Saint James City is 13h and 37min.On the first day of the month, sunrise is at 6:39 am and sunset at 8:25 pm. On the last day of July, sunrise is at 6:53 am and sunset at 8:16 pm EDT.
Sunshine
In July, the average sunshine in Saint James City, Florida, is 11h.UV index
The months with the highest UV index in Saint James City are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: During July, 7 as the daily maximum UV index converts into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be on guard! The reflective nature of sand and water boosts UV exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Saint James City, FL
- Average high temperature in July: 87.4°F
The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (70°F).
- Average low temperature in July: 80.4°F
The month with the highest average low temperature is August (81°F).
The coldest month (with the lowest average low temperature) is January (58.8°F).
Average pressure in July
Saint James City, FL
- Average pressure in July: 30.02"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in July
Saint James City, FL
- Average wind speed in July: 6.9mph
The windiest months (with the highest average wind speed) are October and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in July
Saint James City, FL
- Average humidity in July: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).
Average rainfall in July
Saint James City, FL
- Average rainfall in July: 1.61"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.16").
Average rainfall days in July
Saint James City, FL
- Average rainfall days in July: 17.3 days
The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is February (4.1 days).
Average sea temperature in July
Saint James City, FL
- Average sea temperature in July: 85.4°F
The best month for swimming (with the highest average sea temperature) is August (87.1°F).
The coldest month (with the lowest average sea temperature) is January (65.3°F).
Average daylight in July /
Average sunshine in July
Saint James City, FL
- Average daylight in July: 13h and 36min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in July: 11h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in July
Saint James City, FL
- Average sunshine days in July: 9.1 days
The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is September (7.2 days).
Average UV index in July
Saint James City, 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 February (UV index 5).
Average cloud cover in July
Saint James City, FL
- Average cloud cover in July: 26
The month with the most cloud cover is January (Cloud cover 29).
The months with the least cloud cover are March and May (Cloud cover 23).
Average visibility in July
Saint James City, 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).





