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
The onset of August manifests an average high-temperature of a still pleasant 71.2°F (21.8°C), demonstrating a minor variation from the preceding month. In August, San Quentin experiences a temperature dip to an average of 55.4°F (13°C) at night.Humidity
In San Quentin, the average relative humidity in August is 76%.Rainfall
The months with the least rainfall are June through September Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.Daylight
The average length of the day in August is 13h and 35min.On the first day of August, sunrise is at 6:13 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:40 pm PDT.
Sunshine
In San Quentin, the average sunshine in August is 10.9h.UV index
April, June through September, with an average maximum UV index of 5, are months with the highest UV index in San Quentin. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: During August, 5 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures in San Quentin?
What is the average humidity in August in San Quentin?
What is the driest month in San Quentin?
How much does it rain in San Quentin in August?
What is the average length of the day in August in San Quentin?
When are sunrise and sunset in August in San Quentin?
How many hours of sunshine does San Quentin have in August?
When is the highest UV index in San Quentin?
What is the UV index reading in August in San Quentin?
Average temperature in August
San Quentin, CA
- Average high temperature in August: 71.2°F
The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in August: 55.4°F
The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).
Average pressure in August
San Quentin, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in August
San Quentin, CA
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).
Average humidity in August
San Quentin, CA
- Average humidity in August: 76%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
San Quentin, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in August
San Quentin, CA
- Average rainfall days in August: 1.2 days
The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).
Average daylight in August /
Average sunshine in August
San Quentin, CA
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
San Quentin, CA
- Average sunshine days in August: 24.8 days
The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).
Average UV index in August
San Quentin, CA
- Average UV index in August: 5
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
San Quentin, CA
- Average cloud cover in August: 25
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in August
San Quentin, 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).
San Quentin, California, USA
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