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 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
Island Mountain marks the start of August with an average high temperature of a still pleasant 69.4°F (20.8°C), mirroring the readings from July. Island Mountain, in August, witnesses an average low-temperature of 54.3°F (12.4°C).Humidity
The average relative humidity in August is 76%.Rainfall
In Island Mountain, in August, during 1.8 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 102.7 rainfall days, and 28.78" (731mm) of precipitation is accumulated.Snowfall
In Island Mountain, snow does not fall in January, March through December.Daylight
In August, the average length of the day is 13h and 42min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:27 pm. On the last day of August, sunrise is at 6:41 am and sunset at 7:46 pm PDT.
Sunshine
July and August, with an average of 11.7h of sunshine, are months with the most sunshine.UV index
June through August, 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 medium health hazard from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 5 in August transforms into this advice:
Be vigilant - Preventing sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow in Island Mountain?
How many hours of daylight does Island Mountain have in August?
When is the sunrise / sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Island Mountain have in August?
What are the months with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Island Mountain, CA
- Average high temperature in August: 69.4°F
The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (53.4°F).
- Average low temperature in August: 54.3°F
The months with the highest average low temperature are July, August and September (54.3°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure in August
Island Mountain, CA
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.95"Hg).
Average wind speed in August
Island Mountain, CA
- Average wind speed in August: 7.8mph
The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and August (7.8mph).
Average humidity in August
Island Mountain, CA
- Average humidity in August: 76%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (72%).
Average rainfall in August
Island Mountain, CA
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in August
Island Mountain, CA
- Average rainfall days in August: 1.8 days
The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is August (1.8 days).
Average snowfall days in August
Island Mountain, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Island Mountain, CA
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in August
Island Mountain, CA
- Average sunshine days in August: 28.2 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.1 days).
Average UV index in August
Island Mountain, CA
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in August
Island Mountain, CA
- Average cloud cover in August: 11
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in August
Island Mountain, 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).
Island Mountain, California, USA
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