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 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
August's presence records an average high-temperature of a still tropical 87.4°F (30.8°C), closely mirroring July's climate. Nightfall in August introduces a considerable dip in temperature, settling at an average of 55.4°F (13°C).Heat index
Throughout August, the heat index is evaluated at a tropical 93.2°F (34°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Realize that the values for the heat index are set for shaded places and light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In August, the average relative humidity is 56%.Rainfall
The months with the least rainfall are July and August Rain falls for 0.3 days and accumulates 0.04" (1mm) of rain.Daylight
In Hollister, the average length of the day in August is 13h and 31min.On the first day of August, sunrise is at 6:11 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:34 pm PDT.
Sunshine
The average sunshine in August is 12h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during August?
What is the average humidity in August?
What is the driest month?
How much does it rain in August?
How many hours of daylight does Hollister have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Hollister have in August?
What is the month with the highest UV index?
What is the UV index reading in August in Hollister?
Average temperature in August
Hollister, CA
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (57.4°F).
- Average low temperature in August: 55.4°F
The month with the highest average low temperature is August (55.4°F).
The coldest months (with the lowest average low temperature) are March and December (40.3°F).
Average pressure in August
Hollister, 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
Hollister, CA
- Average wind speed in August: 4.4mph
The windiest month (with the highest average wind speed) is May (5.5mph).
The calmest month (with the lowest average wind speed) is November (3.7mph).
Average humidity in August
Hollister, CA
- Average humidity in August: 56%
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (53%).
Average rainfall in August
Hollister, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is December (1.57").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in August
Hollister, CA
- Average rainfall days in August: 0.3 days
The month with the highest number of rainy days is March (11.6 days).
The month with the least rainy days is August (0.3 days).
Average daylight in August /
Average sunshine in August
Hollister, CA
- Average daylight in August: 13h and 3min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in August
Hollister, CA
- Average sunshine days in August: 30.3 days
The month with the most sunshine days is August (30.3 days).
The month with the least sunshine days is March (18.6 days).
Average UV index in August
Hollister, CA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Hollister, CA
- Average cloud cover in August: 5
The month with the most cloud cover is March (Cloud cover 34).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in August
Hollister, 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).
Hollister, California, USA
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