August weather forecast
Irvine, CA

The neon-lit city of Irvine in California, with highway lights and the distant hill ranges and skyscape
The neon-lit city of Irvine in California, with highway lights and the distant hill ranges and skyscape

Weather in August

August, the last month of the summer in Irvine, is also a moderately hot month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 79.9°F (26.6°C).

Temperature

With an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month.

Humidity

The average relative humidity in August in Irvine is 65%.

Rainfall

In August, the rain falls for 3.3 days. Throughout August, 0.35" (9mm) of precipitation is accumulated. In Irvine, during the entire year, the rain falls for 63.7 days and collects up to 7.91" (201mm) of precipitation.

Daylight

The average length of the day in August is 13h and 22min.
On the first day of the month, sunrise is at 6:03 am and sunset at 7:51 pm. On the last day of August, sunrise is at 6:24 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 in Irvine are June through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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 the 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.
[Resources]

FAQ

What is the warmest month in Irvine?

August is the warmest month, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 64.9°F (18.3°C).

What is the average humidity in August in Irvine?

The average relative humidity in August in Irvine is 65%.

How many days does it rain in August in Irvine?

In Irvine, during August, the rain falls for 3.3 days and regularly aggregates up to 0.35" (9mm) of precipitation.

How many hours of daylight does Irvine have in August?

In August, the average day length in Irvine, California, is 13h and 22min.

What time are sunrise and sunset in August in Irvine?

On the first day of August in Irvine, California, sunrise is at 6:03 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:18 pm PDT.

What are the months with the most sunshine in Irvine?

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

How long on average sun shines in August in Irvine?

In August, the average sunshine duration is 12h.

What are the months with the highest UV index in Irvine?

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

What is the UV index reading in August in Irvine?

The average daily maximum UV index in August in Irvine, California, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in August
Irvine, CA

Average temperature in August - Irvine, CA
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).

[Resources]

Average pressure in August
Irvine, CA

Average pressure in August - Irvine, CA
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

[Resources]

Average wind speed in August
Irvine, CA

Average wind speed in August - Irvine, CA
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (4.8mph).

[Resources]

Average humidity in August
Irvine, CA

Average humidity in August - Irvine, 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%).

[Resources]

Average rainfall in August
Irvine, CA

Average rainfall in August - Irvine, CA
  • Average rainfall in August: 0.35"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.08").

[Resources]

Average rainfall days in August
Irvine, CA

Average rainfall days in August - Irvine, CA
  • Average rainfall days in August: 3.3 days

The month with the highest number of rainy days is March (7.9 days).
The month with the least rainy days is June (2.2 days).

[Resources]

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

Average daylight in August / Average sunshine in August - Irvine, CA
  • Average daylight in August: 13h and 22min

The month with the longest days is June (Average daylight: 14h and 22min).
The month with the shortest days is December (Average daylight: 9h and 58min).

  • Average sunshine in August: 12h

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

[Resources]

Average sunshine days in August
Irvine, CA

Average sunshine days in August - Irvine, CA
  • Average sunshine days in August: 23.9 days

The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (19.7 days).

[Resources]

Average UV index in August
Irvine, CA

Average UV index in August - Irvine, 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 January, February, March, November and December (UV index 4).

[Resources]

Average cloud cover in August
Irvine, CA

Average cloud cover in August - Irvine, CA
  • Average cloud cover in August: 7

The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).

[Resources]

Average visibility in August
Irvine, CA

Average visibility in August - Irvine, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location