August weather forecast and climate
Aliso Viejo, CA

Weather in August

August, the last month of the summer, in Aliso Viejo, is also a moderately hot month, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 80.2°F (26.8°C).

Temperature

With an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 64.4°F (18°C), August is the warmest month.

Humidity

The average relative humidity in August is 65%.

Rainfall

In August, the rain falls for 3.6 days. Throughout August, 0.39" (10mm) of precipitation is accumulated. In Aliso Viejo, during the entire year, the rain falls for 66.3 days and collects up to 5.67" (144mm) of precipitation.

Daylight

In Aliso Viejo, the average length of the day is 13.4h.

Sunshine

Months with the most sunshine in Aliso Viejo, California, are July and August, with an average of 12h of sunshine.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Aliso Viejo?

With an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 64.4°F (18°C), August is the warmest month in Aliso Viejo.

What is the temperature in August in Aliso Viejo?

In August, in Aliso Viejo, California, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 64.4°F (18°C).

What is the average humidity in August in Aliso Viejo?

The average relative humidity in August is 65%.

How many days does it rain in August in Aliso Viejo?

In Aliso Viejo, California, in August, it is raining for 3.6 days, with typically 0.39" (10mm) of accumulated precipitation.

How many hours of daylight does Aliso Viejo have in August?

In Aliso Viejo, California, the average length of the day in August is 13.4h.

What is the month with the most sunshine in Aliso Viejo?

July and August, with an average of 12h of sunshine, are months with the most sunshine in Aliso Viejo, California.

How long on average sun shines in August in Aliso Viejo?

In August, the average sunshine is 12h.

What are the months with the highest UV index in Aliso Viejo?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Aliso Viejo.

What is the UV index reading in August in Aliso Viejo?

The average daily maximum UV index in August in Aliso Viejo is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in August
Aliso Viejo, CA

Average temperature in August - Aliso Viejo, CA
  • Average high temperature in August: 80.2°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in August: 64.4°F

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

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Average pressure in August
Aliso Viejo, CA

Average pressure in August - Aliso Viejo, CA
  • Average pressure in August: 29.89"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in August
Aliso Viejo, CA

Average wind speed in August - Aliso Viejo, CA
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.7mph).

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Average humidity in August
Aliso Viejo, CA

Average humidity in August - Aliso Viejo, CA
  • Average humidity in August: 65%

The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (56%).

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Average rainfall in August
Aliso Viejo, CA

Average rainfall in August - Aliso Viejo, CA
  • Average rainfall in August: 0.39"

The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in August
Aliso Viejo, CA

Average rainfall days in August - Aliso Viejo, CA
  • Average rainfall days in August: 3.6 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (2.6 days).

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Average daylight in August /
Average sunshine in August
Aliso Viejo, CA

Average daylight in August / Average sunshine in August - Aliso Viejo, CA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in August: 12h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.6h).

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Average sunshine days in August
Aliso Viejo, CA

Average sunshine days in August - Aliso Viejo, CA
  • Average sunshine days in August: 23.6 days

The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is February (19.6 days).

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Average UV index in August
Aliso Viejo, CA

Average UV index in August - Aliso Viejo, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in August
Aliso Viejo, CA

Average cloud cover in August - Aliso Viejo, CA
  • Average cloud cover in August: 7

Months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in August
Aliso Viejo, CA

Average visibility in August - Aliso Viejo, CA
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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