August weather forecastRancho Santa Margarita, CA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Rancho Santa Margarita, California, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.2°F (17.9°C).Temperature
Rancho Santa Margarita reaches its highest average temperatures in August, measuring 81.1°F (27.3°C) at the peak and 64.2°F (17.9°C) at the lowest.Heat index
The average heat index in August is evaluated at 84.2°F (29°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In August, the average relative humidity in Rancho Santa Margarita is 64%.Rainfall
In Rancho Santa Margarita, during August, the rain falls for 3.3 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Rancho Santa Margarita, during the entire year, the rain falls for 64.2 days and collects up to 5.79" (147mm) of precipitation.Daylight
In Rancho Santa Margarita, the average length of the day in August is 13h and 22min.On the first day of August, sunrise is at 6:03 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:16 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 12h of sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 6 during August leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rancho Santa Margarita, CA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (48.9°F).
Average pressure in August
Rancho Santa Margarita, CA
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in August
Rancho Santa Margarita, CA
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in August
Rancho Santa Margarita, CA
- Average humidity in August: 64%
The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in August
Rancho Santa Margarita, CA
- Average rainfall in August: 0.35"
The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Rancho Santa Margarita, CA
- Average rainfall days in August: 3.3 days
The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (1.9 days).
Average daylight in August /
Average sunshine in August
Rancho Santa Margarita, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in August
Rancho Santa Margarita, CA
- Average sunshine days in August: 24.1 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is February (19.8 days).
Average UV index in August
Rancho Santa Margarita, CA
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in August
Rancho Santa Margarita, CA
- Average cloud cover in August: 7
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in August
Rancho Santa Margarita, CA
- 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).





