August weather forecast
San Diego, TX

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Weather in August

The last month of the summer, August, is another torrid month in San Diego, Texas, with an average temperature ranging between max 97.9°F (36.6°C) and min 77.2°F (25.1°C).

Temperature

August is the month when San Diego, Texas, experiences its warmest temperatures, averaging a high of 97.9°F (36.6°C) and a low of 77.2°F (25.1°C).

Heat index

August's heat index is calculated to be a burning hot 123.8°F (51°C). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. 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. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

With an average relative humidity of 62%, August is the least humid month in San Diego, Texas.

Rainfall

In August, the rain falls for 9 days. Throughout August, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 123.7 rainfall days, and 15.24" (387mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

In San Diego, the average length of the day in August is 13h and 6min.
On the first day of the month, sunrise is at 6:56 am and sunset at 8:22 pm. On the last day of August, in San Diego, Texas, sunrise is at 7:11 am and sunset at 7:54 pm CDT.

Sunshine

In August, the average sunshine in San Diego, Texas, is 9.9h.

UV index

The average daily maximum UV index in August in San Diego is 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During August, 7 as the daily maximum UV index converts into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in San Diego?

The warmest time of the year in San Diego, Texas, is August, with temperatures averaging a high of 97.9°F (36.6°C) and a low of 77.2°F (25.1°C).

How hot does it get in San Diego in August?

An average high-temperature, in August, in San Diego, is 97.9°F (36.6°C) and the average low-temperature is 77.2°F (25.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 123.8°F (51°C).

What is the least humid month in San Diego?

With an average relative humidity of 62%, August is the least humid month.

What is the average humidity in August in San Diego?

In San Diego, the average relative humidity in August is 62%.

How much does it rain in San Diego in August?

In San Diego, Texas, during August, the rain falls for 9 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in San Diego?

In San Diego, snow does not fall in March through November.

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

In August, the average day length in San Diego is 13h and 6min.

When are sunrise and sunset in August in San Diego?

In August, on the first day of the month, sunrise is at 6:56 am and sunset at 8:22 pm. On the last day of the month, in San Diego, sunrise is at 7:11 am and sunset at 7:54 pm CDT.

How long on average sun shines in August in San Diego?

In August, the average sunshine duration in San Diego, Texas, is 9.9h.

How high is the UV index in August in San Diego?

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

Average temperature in August - San Diego, TX
  • Average high temperature in August: 97.9°F

The warmest month (with the highest average high temperature) is August (97.9°F).
The month with the lowest average high temperature is January (65.5°F).

  • Average low temperature in August: 77.2°F

The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

Average pressure in August
San Diego, TX

Average pressure in August - San Diego, TX
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

Average wind speed in August
San Diego, TX

Average wind speed in August - San Diego, TX
  • Average wind speed in August: 9.7mph

The windiest month (with the highest average wind speed) is May (11.2mph).
The calmest month (with the lowest average wind speed) is September (8.2mph).

Average humidity in August
San Diego, TX

Average humidity in August - San Diego, TX
  • Average humidity in August: 62%

The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (62%).

Average rainfall in August
San Diego, TX

Average rainfall in August - San Diego, TX
  • Average rainfall in August: 1.06"

The wettest month (with the highest rainfall) is September (2.52").
The driest month (with the least rainfall) is February (0.59").

Average rainfall days in August
San Diego, TX

Average rainfall days in August - San Diego, TX
  • Average rainfall days in August: 9 days

The month with the highest number of rainy days is September (17.1 days).
The month with the least rainy days is January (7 days).

Average snowfall in August
San Diego, TX

Average snowfall in August - San Diego, TX
  • Average snowfall in August: 0"

The months with the highest snowfall are January, February and December (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in August
San Diego, TX

Average snowfall days in August - San Diego, TX
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
San Diego, TX

Average daylight in August / Average sunshine in August - San Diego, TX
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in August: 9h 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 August
San Diego, TX

Average sunshine days in August - San Diego, TX
  • Average sunshine days in August: 19.9 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is September (11.2 days).

Average UV index in August
San Diego, TX

Average UV index in August - San Diego, TX
  • Average UV index in August: 7

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in August
San Diego, TX

Average cloud cover in August - San Diego, TX
  • Average cloud cover in August: 19

The months with the most cloud cover are February and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in August
San Diego, TX

Average visibility in August - San Diego, TX
  • 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 Diego, Texas, USA

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