August weather forecast
San Mateo, SC

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Weather in August

The last month of the summer, August, is another hot month in San Mateo, South Carolina, with temperature in the range of an average low of 68.4°F (20.2°C) and an average high of 89.4°F (31.9°C).

Temperature

The advent of August brings an average high-temperature of a still tropical 89.4°F (31.9°C), exhibiting minor difference from the previous month. Throughout the August nights, San Mateo encounters a low-temperature of 68.4°F (20.2°C).

Heat index

August's heat index is calculated to be an extremely hot 105.8°F (41°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. 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. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in August is 72%.

Rainfall

August is the month with the most rainfall. Rain falls for 14 days and accumulates 2.28" (58mm) of precipitation.

Snowfall

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

Daylight

In San Mateo, the average length of the day in August is 13h and 25min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:32 pm. On the last day of August, in San Mateo, sunrise is at 7:03 am and sunset at 7:58 pm EDT.

Sunshine

In San Mateo, the average sunshine in August is 10.1h.

UV index

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

How hot is it in August?

San Mateo in August has an average high-temperature of 89.4°F (31.9°C) and an average low-temperature of 68.4°F (20.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 105.8°F (41°C).

What is the average humidity in August?

In San Mateo, the average relative humidity in August is 72%.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 14 days and typically aggregates up to 2.28" (58mm) of precipitation.

How much does it rain in August?

In San Mateo, in August, it is raining for 14 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in August?

In San Mateo, the average day length in August is 13h and 25min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:41 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 7:58 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.1h.

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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 August
San Mateo, SC

Average temperature in August - San Mateo, SC
  • Average high temperature in August: 89.4°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 August: 68.4°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 August
San Mateo, SC

Average pressure in August - San Mateo, SC
  • Average pressure in August: 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 August
San Mateo, SC

Average wind speed in August - San Mateo, SC
  • Average wind speed in August: 4.5mph

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 August
San Mateo, SC

Average humidity in August - San Mateo, SC
  • Average humidity in August: 72%

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

Average rainfall in August
San Mateo, SC

Average rainfall in August - San Mateo, SC
  • Average rainfall in August: 2.28"

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 August
San Mateo, SC

Average rainfall days in August - San Mateo, SC
  • Average rainfall days in August: 14 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 August
San Mateo, SC

Average snowfall in August - San Mateo, SC
  • Average snowfall in August: 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 August
San Mateo, SC

Average snowfall days in August - San Mateo, SC
  • Average snowfall days in August: 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 August /
Average sunshine in August
San Mateo, SC

Average daylight in August / Average sunshine in August - San Mateo, SC
  • Average daylight in August: 13h and 2min

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 August: 10h and 1min

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 August
San Mateo, SC

Average sunshine days in August - San Mateo, SC
  • Average sunshine days in August: 14.7 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 August
San Mateo, SC

Average UV index in August - San Mateo, SC
  • Average UV index in August: 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 August
San Mateo, SC

Average cloud cover in August - San Mateo, SC
  • Average cloud cover in August: 32

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 August
San Mateo, SC

Average visibility in August - San Mateo, SC
  • Average visibility in August: 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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