August weather forecastStinson Beach, CA
August
Weather in August
August, the last month of the summer in Stinson Beach, is another pleasant month, with an average temperature ranging between max 69.4°F (20.8°C) and min 56.1°F (13.4°C).Temperature
At the onset of August, Stinson Beach records an average high-temperature of a still agreeable 69.4°F (20.8°C), showing little deviation from the preceding month. The low-temperature average for Stinson Beach during August stands at a mild 56.1°F (13.4°C).Humidity
With an average relative humidity of 78%, August is the most humid month.Rainfall
The months with the least rainfall are July and August Rain falls for 2.7 days and accumulates 0.08" (2mm) of rain.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in August is 13h and 35min.On the first day of the month, sunrise is at 6:14 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:40 pm PDT.
Sunshine
The average sunshine in August is 10.9h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 in August translates into these instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Stinson Beach, CA
- Average high temperature in August: 69.4°F
The warmest month (with the highest average high temperature) is September (70.9°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in August: 56.1°F
The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46°F).
Average pressure in August
Stinson Beach, 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
Stinson Beach, CA
- Average wind speed in August: 6.5mph
The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).
Average humidity in August
Stinson Beach, CA
- Average humidity in August: 78%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in August
Stinson Beach, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in August
Stinson Beach, CA
- Average rainfall days in August: 2.7 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (2.3 days).
Average snowfall days in August
Stinson Beach, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Stinson Beach, CA
- Average daylight in August: 13h and 36min
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 54min
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 36min).
Average sunshine days in August
Stinson Beach, CA
- Average sunshine days in August: 23.4 days
The months with the most sunshine days are June and July (24.8 days).
The month with the least sunshine days is March (16.6 days).
Average UV index in August
Stinson Beach, CA
- Average UV index in August: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in August
Stinson Beach, 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
Stinson Beach, 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).





