August weather forecast
Fullerton, CA

August is one month Fullerton, California gets to experience the highest average temperatures reaching 83.5°F (28.6°C). Nonetheless, the rainfall remains minimal at around 0.2" (5mm) and maintains a dry atmosphere conducive for diverse outdoor activities. The Fullerton cityscape enjoys a surplus of sunlight with an average of 13.4 daylight hours daily. Visitors can likewise look forward to soaking in the ample sunshine Fullerton offers during August. Despite the relative humidity being somewhat high, the dry and warm weather persist during August, sustaining the delightful summer feel.

Temperature

Fullerton, California, records the warmest temperatures in August, averaging a high of 83.5°F (28.6°C) and a low of 65.5°F (18.6°C).

Heat index

The heat index value during August is appraised at a tropical 86°F (30°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In August, the average relative humidity in Fullerton is 59%.

Rainfall

In Fullerton, in August, it is raining for 2.2 days, with typically 0.2" (5mm) of accumulated precipitation. In Fullerton, during the entire year, the rain falls for 52.5 days and collects up to 7.09" (180mm) of precipitation.

Daylight

In Fullerton, the average length of the day in August is 13h and 22min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:51 pm. On the last day of August, in Fullerton, sunrise is at 6:25 am and sunset at 7:18 pm PDT.

Sunshine

The months with the most sunshine are July and August, with an average of 12h of sunshine.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.