August weather forecastSan Luis Obispo, CA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in San Luis Obispo, California, with an average temperature varying between 80.2°F (26.8°C) and 59.5°F (15.3°C).Temperature
With average temperatures fluctuating between a high of 80.2°F (26.8°C) and a low of 59.5°F (15.3°C), August stands out as the warmest month.Humidity
In San Luis Obispo, California, the average relative humidity in August is 61%.Rainfall
June and August are months with the least rain when the rain falls for 0.6 days and typically aggregates up to 0.04" (1mm) of rain.Daylight
In August, the average length of the day is 13h and 26min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:05 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:30 pm PDT.
Sunshine
The months with the most sunshine are June through August, with an average of 12h of sunshine.UV index
The months with the highest UV index are June and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 6 in August transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
San Luis Obispo, CA
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (60.3°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is September (60.3°F).
The coldest month (with the lowest average low temperature) is February (45.7°F).
Average pressure in August
San Luis Obispo, CA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in August
San Luis Obispo, CA
- Average wind speed in August: 5.3mph
The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).
Average humidity in August
San Luis Obispo, CA
- Average humidity in August: 61%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are September and October (57%).
Average rainfall in August
San Luis Obispo, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is March (2.01").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in August
San Luis Obispo, CA
- Average rainfall days in August: 0.6 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.6 days).
Average daylight in August /
Average sunshine in August
San Luis Obispo, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in August
San Luis Obispo, CA
- Average sunshine days in August: 29.2 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is February (19.1 days).
Average UV index in August
San Luis Obispo, CA
- Average UV index in August: 6
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is February (UV index 3).
Average cloud cover in August
San Luis Obispo, CA
- Average cloud cover in August: 6
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 6).
Average visibility in August
San Luis Obispo, 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).
