Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
San Mateo's July weather, with an average high temperature of 91°F (32.8°C) and an average low temperature of 69.4°F (20.8°C), tends to be the warmest of the year.Heat index
The heat index value during July is calculated to be a blisteringly hot 107.6°F (42°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. 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. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. 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 exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
With an average relative humidity of 69%, July is the least humid month.Rainfall
In San Mateo, South Carolina, in July, during 15.4 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. 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
In San Mateo, the average length of the day in July 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, sunrise is at 6:41 am and sunset at 8:33 pm EDT.
Sunshine
With an average of 10.9h of sunshine, July has the most sunshine of the year.UV index
In San Mateo, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in July translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
How hot does it get in July?
What is the least humid month?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
How many hours of daylight does San Mateo have in July?
What time are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does San Mateo have in July?
What is the UV index reading in July?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
San Mateo, South Carolina, USA
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