July weather forecast
Chesapeake, VA

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Weather in July

July represents the quintessential Chesapeake summer, registering as the month with the highest average temperature at a scorching 86.4°F (30.2°C). Balmy days, heavy with heat, create the perfect backdrop for all manner of summer outdoor activities. This intense heat is somewhat moderated by the relatively high sea temperature that reaches 78.2°F (25.7°C) in July - the highest of the entire year. With the inflow of warmth, and the frequent occurrence of summer storms, the city is bathed in a unique blend of scalding sun and resounding showers. Even though the relentless beating down of the sun can be overwhelming at times, the plethora of summer festivals and activities on offer make July a joyous time for locals and visitors alike.

Temperature

With its high average temperature of 86.4°F (30.2°C) and a low of 73.6°F (23.1°C), July is regarded as the warmest month.

Heat index

The heat index value during July is evaluated at a very hot 98.6°F (37°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

July and November, with an average relative humidity of 74%, are the least humid months.

Rainfall

In Chesapeake, during July, the rain falls for 17.4 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 151.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Ocean temperature

In Chesapeake, in July, the average water temperature is 78.3°F (25.7°C).
Note: Water surface temperatures from 77°F (25°C) to 84.2°F (29°C) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

In Chesapeake, the average length of the day in July is 14h and 23min.
On the first day of July, sunrise is at 5:50 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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, a daily maximum UV index of 7 leads to the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Caution! Sand and water reflections can notably increase the UV radiation intensity.

Frequently asked questions

What month is the hottest?

July, having an average high-temperature of 86.4°F (30.2°C) and an average low-temperature of 73.6°F (23.1°C), is the warmest month.

How hot is it in July?

The high-temperature, in July, in Chesapeake, is 86.4°F (30.2°C), while the low-temperature averages to 73.6°F (23.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is evaluated at 98.6°F (37°C).

What are the least humid months?

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

What is the average humidity in July?

In July, the average relative humidity is 74%.

How much does it rain in July?

In Chesapeake, during July, the rain falls for 17.4 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

How warm is the water in July?

In Chesapeake, Virginia, the average seawater temperature in July is 78.3°F (25.7°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in July?

In July, the average day length is 14h and 23min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:50 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.

What month has the most sunshine?

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

How long on average sun shines in July?

In Chesapeake, the average sunshine duration in July is 10.9h.

What is the month with the highest UV index?

The months with the highest UV index are July and August, with an average maximum UV index of 7.

What is the UV index intensity in July?

In Chesapeake, the average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Chesapeake, VA

Average temperature in July - Chesapeake, VA
  • Average high temperature in July: 86.4°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in July: 73.6°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).

Average pressure in July
Chesapeake, VA

Average pressure in July - Chesapeake, VA
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in July
Chesapeake, VA

Average wind speed in July - Chesapeake, VA
  • Average wind speed in July: 8mph

The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

Average humidity in July
Chesapeake, VA

Average humidity in July - Chesapeake, VA
  • Average humidity in July: 74%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and November (74%).

Average rainfall in July
Chesapeake, VA

Average rainfall in July - Chesapeake, VA
  • Average rainfall in July: 2.2"

The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is November (1.1").

Average rainfall days in July
Chesapeake, VA

Average rainfall days in July - Chesapeake, VA
  • Average rainfall days in July: 17.4 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.3 days).

Average snowfall in July
Chesapeake, VA

Average snowfall in July - Chesapeake, VA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Chesapeake, VA

Average snowfall days in July - Chesapeake, VA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in July
Chesapeake, VA

Average sea temperature in July - Chesapeake, VA
  • Average sea temperature in July: 78.2°F

The best month for swimming (with the highest average sea temperature) is August (80°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

Average daylight in July /
Average sunshine in July
Chesapeake, VA

Average daylight in July / Average sunshine in July - Chesapeake, VA
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

Average sunshine days in July
Chesapeake, VA

Average sunshine days in July - Chesapeake, VA
  • Average sunshine days in July: 11.2 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (10.8 days).

Average UV index in July
Chesapeake, VA

Average UV index in July - Chesapeake, VA
  • Average UV index in July: 7

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in July
Chesapeake, VA

Average cloud cover in July - Chesapeake, VA
  • Average cloud cover in July: 26

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in July
Chesapeake, VA

Average visibility in July - Chesapeake, VA
  • 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).

Chesapeake, Virginia, USA

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