August weather forecastLarkspur, CA
August
Weather in August
The last month of the summer, August, is another pleasant month in Larkspur, California, with an average temperature ranging between min 55.4°F (13°C) and max 71.2°F (21.8°C).Temperature
Shifting into August, Larkspur records an average high-temperature of a still pleasant 71.2°F (21.8°C), presenting minor fluctuations compared to the previous month. Larkspur, during the month of August, experiences an average low-temperature of 55.4°F (13°C).Humidity
The average relative humidity in August in Larkspur, California, is 76%.Rainfall
June through September are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 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 6:14 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
The average sunshine in August in Larkspur is 10.9h.UV index
April, June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during August translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's recommended to limit sun exposure when its radiation is at its peak during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Larkspur, 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
Larkspur, 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
Larkspur, 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
Larkspur, 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
Larkspur, 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
Larkspur, 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
Larkspur, 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 30min).
Average sunshine days in August
Larkspur, 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
Larkspur, 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
Larkspur, 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
Larkspur, 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).





