August weather forecast
San Antonio, NM

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Weather in August

The last month of the summer, August, is another warm month in San Antonio, New Mexico, with an average temperature ranging between max 85.6°F (29.8°C) and min 67.5°F (19.7°C).

Temperature

August registers an average high-temperature of a moderately hot 85.6°F (29.8°C), slightly varied from July's 87.8°F (31°C). In the month of August, the temperature in San Antonio generally rests at an average low of 67.5°F (19.7°C).

Heat index

The heat index in August is calculated to be a hot 86°F (30°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. 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 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 essentially critical for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

The average relative humidity in August is 41%.

Rainfall

The month with the most rainfall is August, when the rain falls for 15 days and typically aggregates up to 1.73" (44mm) of precipitation.

Snowfall

April through October are months without snowfall in San Antonio.

Daylight

In August, the average length of the day is 13h and 23min.
On the first day of August, sunrise is at 6:19 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:34 pm MDT.

Sunshine

The average sunshine in August is 11.8h.

UV index

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

During August, San Antonio experiences an average high-temperature of 85.6°F (29.8°C) and a low-temperature of 67.5°F (19.7°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in August?

In San Antonio, the average relative humidity in August is 41%.

What is the rainiest month in San Antonio?

August is the month with the most rainfall. Rain falls for 15 days and accumulates 1.73" (44mm) of precipitation.

How many days does it rain in August?

In San Antonio, New Mexico, in August, during 15 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow?

In San Antonio, snow does not fall in April through October.

What is the average length of the day in August in San Antonio?

The average day length in August is 13h and 23min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:19 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:34 pm MDT.

How long on average sun shines in August?

The average sunshine duration in August is 11.8h.

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 August
San Antonio, NM

Average temperature in August - San Antonio, NM
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is June (88.3°F).
The month with the lowest average high temperature is January (47.8°F).

  • Average low temperature in August: 67.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in August
San Antonio, NM

Average pressure in August - San Antonio, NM
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.88"Hg).

Average wind speed in August
San Antonio, NM

Average wind speed in August - San Antonio, NM
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in August
San Antonio, NM

Average humidity in August - San Antonio, NM
  • Average humidity in August: 41%

The month with the highest relative humidity is January (54%).
The months with the lowest relative humidity are April, May and June (25%).

Average rainfall in August
San Antonio, NM

Average rainfall in August - San Antonio, NM
  • Average rainfall in August: 1.73"

The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is April (0.39").

Average rainfall days in August
San Antonio, NM

Average rainfall days in August - San Antonio, NM
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is November (3.6 days).

Average snowfall in August
San Antonio, NM

Average snowfall in August - San Antonio, NM
  • Average snowfall in August: 0"

The month with the highest snowfall is December (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
San Antonio, NM

Average snowfall days in August - San Antonio, NM
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
San Antonio, NM

Average daylight in August / Average sunshine in August - San Antonio, NM
  • 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: 11h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in August
San Antonio, NM

Average sunshine days in August - San Antonio, NM
  • Average sunshine days in August: 10.7 days

The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is August (10.7 days).

Average UV index in August
San Antonio, NM

Average UV index in August - San Antonio, NM
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).

Average cloud cover in August
San Antonio, NM

Average cloud cover in August - San Antonio, NM
  • Average cloud cover in August: 16

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is October (Cloud cover 11).

Average visibility in August
San Antonio, NM

Average visibility in August - San Antonio, NM
  • Average visibility in August: 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).

San Antonio, New Mexico, USA

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