July weather forecast
San Mateo, SC

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Weather in July

July, the same as June, in San Mateo, South Carolina, is another hot summer month, with an average temperature varying between 69.4°F (20.8°C) and 91°F (32.8°C).

Temperature

July, known for its average high temperature of 91°F (32.8°C) and an average low temperature of 69.4°F (20.8°C), is the warmest month.

Heat index

July's average heat index is appraised at an extremely hot 107.6°F (42°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. 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

The least humid month in San Mateo, South Carolina, is July, with an average relative humidity of 69%.

Rainfall

In San Mateo, during July, the rain falls for 15.4 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 136.3 rainfall days, and 19.02" (483mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in San Mateo.

Daylight

The average length of the day in July in San Mateo is 14h and 12min.
On the first day of the month, sunrise is at 6:22 am and sunset at 8:47 pm. On the last day of July, in San Mateo, sunrise is at 6:41 am and sunset at 8:33 pm EDT.

Sunshine

July has the most sunshine of the year in San Mateo, South Carolina, with an average of 10.9h of sunshine.

UV index

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in July leads to these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the hottest time of year in San Mateo?

San Mateo's warmest month, July, generally records average temperatures ranging from a high of 91°F (32.8°C) to a low of 69.4°F (20.8°C).

How hot is it in San Mateo in July?

The high-temperature, in July, in San Mateo, records 91°F (32.8°C), while the low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 107.6°F (42°C).

What is the least humid month in San Mateo?

The least humid month is July, with an average relative humidity of 69%.

What is the average humidity in July in San Mateo?

The average relative humidity in July in San Mateo, South Carolina, is 69%.

How many days does it rain in July in San Mateo?

In San Mateo, in July, it is raining for 15.4 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow in San Mateo?

In San Mateo, South Carolina, snow does not fall in April through November.

How many hours of daylight does San Mateo have in July?

In July, the average day length in San Mateo, South Carolina, is 14h and 12min.

When are sunrise and sunset in July in San Mateo?

In July, on the first day of the month, sunrise is at 6:22 am and sunset at 8:47 pm. On the last day of the month, in San Mateo, sunrise is at 6:41 am and sunset at 8:33 pm EDT.

What month has the most sunshine in San Mateo?

July has the most sunshine of the year in San Mateo, with an average of 10.9h of sunshine.

How many hours of sunshine does San Mateo have in July?

In July, the average sunshine duration in San Mateo, South Carolina, is 10.9h.

How high is the UV index in July in San Mateo?

The average daily maximum UV index in July in San Mateo is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
San Mateo, SC

Average temperature in July - San Mateo, SC
  • Average high temperature in July: 91°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°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 (34.5°F).

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Average pressure in July
San Mateo, SC

Average pressure in July - San Mateo, SC
  • Average pressure in July: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in July
San Mateo, SC

Average wind speed in July - San Mateo, SC
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in July
San Mateo, SC

Average humidity in July - San Mateo, SC
  • Average humidity in July: 69%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in July
San Mateo, SC

Average rainfall in July - San Mateo, SC
  • Average rainfall in July: 1.69"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

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Average rainfall days in July
San Mateo, SC

Average rainfall days in July - San Mateo, SC
  • Average rainfall days in July: 15.4 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

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Average snowfall in July
San Mateo, SC

Average snowfall in July - San Mateo, SC
  • Average snowfall in July: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in July
San Mateo, SC

Average snowfall days in July - San Mateo, SC
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in July /
Average sunshine in July
San Mateo, SC

Average daylight in July / Average sunshine in July - San Mateo, SC
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • 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 December (Average sunshine: 5h and 6min).

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Average sunshine days in July
San Mateo, SC

Average sunshine days in July - San Mateo, SC
  • Average sunshine days in July: 14.3 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in July
San Mateo, SC

Average UV index in July - San Mateo, SC
  • Average UV index in July: 6

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

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Average cloud cover in July
San Mateo, SC

Average cloud cover in July - San Mateo, SC
  • Average cloud cover in July: 29

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

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Average visibility in July
San Mateo, SC

Average visibility in July - San Mateo, SC
  • Average visibility in July: 6mi

The 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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San Mateo, South Carolina, USA

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