August weather forecast
Atascadero, CA

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The Sunken Gardens Park overlooking the Atascadero City Hall in California
The Sunken Gardens Park overlooking the Atascadero City Hall in California

Weather in August

August, the last month of the summer in Atascadero, is another warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 85.5°F (29.7°C).

Temperature

Temperature readings reach their annual highs in August, averaging 85.5°F (29.7°C) and a minimum average of 59.5°F (15.3°C).

Heat index

August's average heat index is calculated to be a tropical 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

In August, the average relative humidity is 53%.

Rainfall

June and August are months with the least rain in Atascadero when the rain falls for 0.9 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

In August, the average length of the day in Atascadero is 13h and 27min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:30 pm PDT.

Sunshine

In August, the average sunshine is 11.9h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Atascadero. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the warmest month in Atascadero?

With average temperatures fluctuating between a high of 85.5°F (29.7°C) and a low of 59.5°F (15.3°C), August stands out as the warmest month.

How hot is August in Atascadero?

In Atascadero, 85.5°F (29.7°C) is the average high-temperature and 59.5°F (15.3°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in August in Atascadero?

In Atascadero, California, the average relative humidity in August is 53%.

What is the driest month in Atascadero?

The months with the least rainfall are June and August Rain falls for 0.9 days and accumulates 0.04" (1mm) of rain.

How much does it rain in Atascadero in August?

In August, the rain falls for 0.9 days. Throughout August, 0.04" (1mm) of precipitation is accumulated.

How many hours of daylight does Atascadero have in August?

In Atascadero, California, the average day length in August is 13h and 27min.

When are sunrise and sunset in August in Atascadero?

On the first day of August in Atascadero, California, sunrise is at 6:11 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:30 pm PDT.

How long on average sun shines in August in Atascadero?

The average sunshine duration in August in Atascadero, California, is 11.9h.

When is the highest UV index in Atascadero?

The months with the highest UV index in Atascadero, California, are June through September, with an average maximum UV index of 6.

What is the UV index intensity in August in Atascadero?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Atascadero, CA

Average temperature in August - Atascadero, CA
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is December (58.5°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is December (42.8°F).

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Average pressure in August
Atascadero, CA

Average pressure in August - Atascadero, CA
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

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Average wind speed in August
Atascadero, CA

Average wind speed in August - Atascadero, CA
  • Average wind speed in August: 4.5mph

The windiest months (with the highest average wind speed) are March and April (5.9mph).
The calmest months (with the lowest average wind speed) are August and September (4.5mph).

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Average humidity in August
Atascadero, CA

Average humidity in August - Atascadero, CA
  • Average humidity in August: 53%

The months with the highest relative humidity are February and March (68%).
The month with the lowest relative humidity is September (50%).

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Average rainfall in August
Atascadero, CA

Average rainfall in August - Atascadero, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is March (1.73").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in August
Atascadero, CA

Average rainfall days in August - Atascadero, CA
  • Average rainfall days in August: 0.9 days

The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is June (0.8 days).

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Average daylight in August /
Average sunshine in August
Atascadero, CA

Average daylight in August / Average sunshine in August - Atascadero, CA
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 11h and 5min

The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 18min).

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Average sunshine days in August
Atascadero, CA

Average sunshine days in August - Atascadero, CA
  • Average sunshine days in August: 29.8 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is February (19.7 days).

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Average UV index in August
Atascadero, CA

Average UV index in August - Atascadero, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in August
Atascadero, CA

Average cloud cover in August - Atascadero, CA
  • Average cloud cover in August: 6

The month with the most cloud cover is March (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in August
Atascadero, CA

Average visibility in August - Atascadero, 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).

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Atascadero, California, USA

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