August weather forecastClearlake, CA
August
Weather in August
The last month of the summer, August, is another tropical month in Clearlake, California, with an average temperature varying between 58.3°F (14.6°C) and 90.1°F (32.3°C).Temperature
Transitioning into August, Clearlake records an average high-temperature of a still tropical 90.1°F (32.3°C), almost identical to July's 91.2°F (32.9°C). A sharp contrast between day and night is prevalent in August with an average nighttime temperature of 58.3°F (14.6°C).Heat index
The heat index value for August is estimated at a tropical 93.2°F (34°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In August, the average relative humidity is 46%.Rainfall
July and August are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 0.04" (1mm) of rain.Snowfall
April through October are months without snowfall.Daylight
In August, the average length of the day is 13h and 38min.On the first day of August, sunrise is at 6:12 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:41 pm PDT.
Sunshine
In August, the average sunshine is 11.9h.UV index
In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 6 during August, leads to the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Clearlake, CA
- Average high temperature in August: 90.1°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in August: 58.3°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in August
Clearlake, CA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in August
Clearlake, CA
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in August
Clearlake, CA
- Average humidity in August: 46%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (44%).
Average rainfall in August
Clearlake, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (3.7").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in August
Clearlake, CA
- Average rainfall days in August: 1.1 days
The month with the highest number of rainy days is March (13.9 days).
The months with the least rainy days are July and August (1.1 days).
Average snowfall in August
Clearlake, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Clearlake, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.9 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
Clearlake, CA
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in August
Clearlake, CA
- Average sunshine days in August: 29.3 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in August
Clearlake, CA
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in August
Clearlake, CA
- Average cloud cover in August: 5
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in August
Clearlake, 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).
