July weather forecast and climate
Colonial Beach, VA

Weather in July

July is a hot summer month in Colonial Beach, Virginia, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 69.4°F (20.8°C).

Temperature

With an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 69.4°F (20.8°C), July is the warmest month.

Heat index

In July, the average heat index is estimated at a very hot 100.9°F (38.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, differences in body mass, height, and shape, pregnancy, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Colonial Beach, the average relative humidity is 74%.

Rainfall

Months with the most rainfall in Colonial Beach are July and August, with an average 3.19" (81mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

In Colonial Beach, the average seawater temperature is 76.8°F (24.9°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.8°F (24.9°C).

Daylight

The average length of the day in Colonial Beach is 14.5h.

Sunshine

The month with the most sunshine in Colonial Beach, Virginia, is July, with an average of 10.6h of sunshine.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the warmest month in Colonial Beach?

July is the warmest month in Colonial Beach, with an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 69.4°F (20.8°C).

What is the temperature in July in Colonial Beach?

In Colonial Beach, in July, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in July is estimated at 100.9°F (38.3°C).

What is the average humidity in July in Colonial Beach?

In July, the average relative humidity in Colonial Beach is 74%.

What is the wettest month in Colonial Beach?

Months with the most rainfall in Colonial Beach are July and August, with an average 3.19" (81mm) of precipitation.

How much does it rain in Colonial Beach in July?

In Colonial Beach, Virginia, during July, the rain falls for 16 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in Colonial Beach?

May through October are months without snowfall in Colonial Beach.

How warm is the water in July in Colonial Beach?

In July, the average ocean temperature in Colonial Beach, Virginia, is 76.8°F (24.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.8°F (24.9°C) water may be enjoyable.

How many hours of daylight does Colonial Beach have in July?

In Colonial Beach, the average length of the day in July is 14.5h.

What month has the most sunshine in Colonial Beach?

With an average of 10.6h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Colonial Beach?

In July, the average sunshine in Colonial Beach, Virginia, is 10.6h.

When is the highest UV index in Colonial Beach?

Months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Colonial Beach?

The average daily maximum UV index in July in Colonial Beach is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in July
Colonial Beach, VA

Average temperature in July - Colonial Beach, VA
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in July: 69.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

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Average pressure in July
Colonial Beach, VA

Average pressure in July - Colonial Beach, VA
  • Average pressure in July: 29.97"

The month with the highest atmospheric pressure is November (30.14").
The month with the lowest atmospheric pressure is June (29.95").

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Average wind speed in July
Colonial Beach, VA

Average wind speed in July - Colonial Beach, VA
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in July
Colonial Beach, VA

Average humidity in July - Colonial Beach, VA
  • Average humidity in July: 74%

Months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in July
Colonial Beach, VA

Average rainfall in July - Colonial Beach, VA
  • Average rainfall in July: 3.19"

The wettest months (with the highest rainfall) are July and August (3.19").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in July
Colonial Beach, VA

Average rainfall days in July - Colonial Beach, VA
  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (9.4 days).

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Average snowfall in July
Colonial Beach, VA

Average snowfall in July - Colonial Beach, VA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.85").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Colonial Beach, VA

Average snowfall days in July - Colonial Beach, VA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in July
Colonial Beach, VA

Average sea temperature in July - Colonial Beach, VA
  • Average sea temperature in July: 76.8°F

The best month for swimming (with the highest average sea temperature) is August (78.4°F).
The coldest month (with the lowest average sea temperature) is February (47.1°F).

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Average daylight in July /
Average sunshine in July
Colonial Beach, VA

Average daylight in July / Average sunshine in July - Colonial Beach, VA
  • Average daylight in July: 14.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in July: 10.6h

The month with the most sunshine is July (Average sunshine: 10.6h).
Months with the least sunshine are February and December (Average sunshine: 5.1).

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Average sunshine days in July
Colonial Beach, VA

Average sunshine days in July - Colonial Beach, VA
  • Average sunshine days in July: 12.6 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).

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Average UV index in July
Colonial Beach, VA

Average UV index in July - Colonial Beach, VA
  • Average UV index in July: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in July
Colonial Beach, VA

Average cloud cover in July - Colonial Beach, VA
  • Average cloud cover in July: 31

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in July
Colonial Beach, VA

Average visibility in July - Colonial Beach, VA
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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