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 snowfall in August
- Average snowfall 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
Entering August, the average high-temperature is recorded at a still hot 90.9°F (32.7°C), exhibiting a minimal shift from July's 91.9°F (33.3°C). Vallecito's average low-temperature for the month of August denotes a significant decline from the daily high, recording at an enjoyable 62.2°F (16.8°C).Humidity
July and August, with an average relative humidity of 34%, are the least humid months.Rainfall
The months with the least rainfall are July and August Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.Snowfall
In Vallecito, snow does not fall in April through October.Daylight
The average length of the day in August is 13h and 35min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:32 pm PDT.
Sunshine
In Vallecito, California, the average sunshine in August is 12h.UV index
In Vallecito, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What are the least humid months?
What is the average humidity in August?
What is the driest month?
How much does it rain in Vallecito in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Vallecito, CA
- Average high temperature in August: 90.9°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).
Average pressure in August
Vallecito, CA
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Vallecito, CA
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in August
Vallecito, CA
- Average humidity in August: 34%
The month with the highest relative humidity is March (71%).
The months with the lowest relative humidity are July and August (34%).
Average rainfall in August
Vallecito, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is March (4.76").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in August
Vallecito, CA
- Average rainfall days in August: 1.2 days
The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (1.2 days).
Average snowfall in August
Vallecito, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Vallecito, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.2 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
Vallecito, 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: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Vallecito, CA
- Average sunshine days in August: 28.8 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in August
Vallecito, CA
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is November (UV index 2).
Average cloud cover in August
Vallecito, CA
- Average cloud cover in August: 5
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in August
Vallecito, 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).
Vallecito, California, USA
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