July weather forecast
Norfolk, VA

July in Norfolk holds the title for the warmest month march, with the mercury soaring to an impressive high of 86.4°F (30.2°C). There is an increased likelihood of occasional thunderstorms, given that this month has the highest rainfall. Despite the increased number of rainy days, the total amount of sunshine is not hampered significantly. Wind speed slightly decreases compared to June. In July, the sea maintains its inviting warmth, encouraging residents and tourists alike to take a dip.

Temperature

Norfolk's warmest weather arrives in July, when temperatures average a high of 86.4°F (30.2°C) and a low of 73.6°F (23.1°C).

Heat index

The heat index value for July is computed to be a torrid 98.6°F (37°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index values are typically calculated for conditions of shade and a light breeze. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The months with the lowest humidity in Norfolk, Virginia, are July and November, with an average relative humidity of 74%.

Rainfall

In July, the rain falls for 17.4 days. Throughout July, 2.2" (56mm) of precipitation is accumulated. Throughout the year, in Norfolk, Virginia, there are 151.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.

Snowfall

In Norfolk, snow does not fall in April through October.

Ocean temperature

In July, the average ocean temperature is 78.3°F (25.7°C).
Note: For swimming, diving, or other water activities, the temperature range of 77°F (25°C) to 84.2°F (29°C) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.

Daylight

In Norfolk, Virginia, the average length of the day in July is 14h and 23min.
On the first day of July in Norfolk, sunrise is at 5:49 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:12 pm EDT.

Sunshine

With an average of 10.9h of sunshine, July has the most sunshine of the year.

UV index

July and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in July interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Watch out! Sand and water enhance the UV exposure you receive.