Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August, with its high-temperature average of 81.9°F (27.7°C) and a low-temperature average of 64.2°F (17.9°C), is the warmest month.Heat index
The heat index in August is calculated to be 84.2°F (29°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
In Lake San Marcos, the average relative humidity in August is 63%.Rainfall
In August, the rain falls for 1.6 days. Throughout August, 0.12" (3mm) of precipitation is accumulated. Throughout the year, in Lake San Marcos, there are 52.1 rainfall days, and 6.1" (155mm) of precipitation is accumulated.Daylight
In Lake San Marcos, the average length of the day in August is 13h and 20min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:47 pm. On the last day of August, sunrise is at 6:23 am and sunset at 7:14 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Lake San Marcos. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 in August translates into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. 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 is the warmest month in Lake San Marcos?
What is the temperature in August in Lake San Marcos?
What is the average humidity in August in Lake San Marcos?
How much does it rain in Lake San Marcos in August?
How many hours of daylight does Lake San Marcos have in August?
What time are sunrise and sunset in August in Lake San Marcos?
How many hours of sunshine does Lake San Marcos have in August?
What are the months with the highest UV index in Lake San Marcos?
What is the UV index reading in August in Lake San Marcos?
Average temperature in August
Lake San Marcos, CA
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is August (81.9°F).
The months with the lowest average high temperature are February and December (63.3°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°F).
Average pressure in August
Lake San Marcos, CA
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Lake San Marcos, CA
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).
Average humidity in August
Lake San Marcos, CA
- Average humidity in August: 63%
The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in August
Lake San Marcos, CA
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Lake San Marcos, CA
- Average rainfall days in August: 1.6 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.2 days).
Average daylight in August /
Average sunshine in August
Lake San Marcos, CA
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
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 July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in August
Lake San Marcos, CA
- Average sunshine days in August: 25.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (20 days).
Average UV index in August
Lake San Marcos, 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
Lake San Marcos, CA
- Average cloud cover in August: 7
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in August
Lake San Marcos, 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).
Lake San Marcos, California, USA
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