Climate and monthly 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 January

January, like December, in Irvine, California, is another enjoyable winter month, with an average temperature fluctuating between 64.9°F (18.3°C) and 51.8°F (11°C). In January, the average high-temperature is practically the same as in December - a still enjoyable 64.9°F (18.3°C). Weather in January »

Weather in February

February, the last month of the winter in Irvine, is also an enjoyable month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 64°F (17.8°C). In February, the average high-temperature is relatively the same as in January - a still enjoyable 64°F (17.8°C). Weather in February »

Weather in March

The first month of the spring, March, is also an enjoyable month in Irvine, California, with an average temperature fluctuating between 52°F (11.1°C) and 66°F (18.9°C). In Irvine, California, the average high-temperature in March is practically the same as in February - a still comfortable 66°F (18.9°C). Weather in March »

Weather in April

April in Irvine, California, is an agreeable spring month, with an average temperature ranging between min 54°F (12.2°C) and max 68.4°F (20.2°C). In Irvine, the average high-temperature in April is almost the same as in March - a pleasant 68.4°F (20.2°C). Weather in April »

Weather in May

The last month of the spring, May, is also an agreeable month in Irvine, California, with an average temperature fluctuating between 56.3°F (13.5°C) and 69.8°F (21°C). In Irvine, the average high-temperature in May is relatively the same as in April - a still pleasant 69.8°F (21°C). Weather in May »

Weather in June

June, the first month of the summer in Irvine, is a moderately hot month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 73.6°F (23.1°C). In June, the average high-temperature is relatively the same as in May - a warm 73.6°F (23.1°C). Weather in June »

Weather in July

July, like June, in Irvine, California, is a moderately hot summer month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 77.9°F (25.5°C). In Irvine, California, the average high-temperature in July is practically the same as in June - a still moderately hot 77.9°F (25.5°C). Weather in July »

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). 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. Weather in August »

Weather in September

September, the first month of the autumn in Irvine, is still a warm month, with an average temperature varying between 79°F (26.1°C) and 64.4°F (18°C). In September, the average high-temperature is essentially the same as in August - a still moderately hot 79°F (26.1°C). Weather in September »

Weather in October

October, like September, in Irvine, California, is a moderately hot autumn month, with an average temperature varying between 74.7°F (23.7°C) and 61.5°F (16.4°C). In October, the average high-temperature is practically the same as in September - a still moderately hot 74.7°F (23.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Irvine, California, with an average temperature varying between 56.5°F (13.6°C) and 69.6°F (20.9°C). In November, the average high-temperature is essentially the same as in October - an agreeable 69.6°F (20.9°C). Weather in November »

Weather in December

December, the first month of the winter in Irvine, is still a comfortable month, with an average temperature ranging between min 51.8°F (11°C) and max 63°F (17.2°C). December is the coldest month, with an average high-temperature of 63°F (17.2°C) and an average low-temperature of 51.8°F (11°C). Weather in December »
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FAQ

How many days does it rain in Irvine?

In Irvine, California, during the entire year, the rain falls for 63.7 days and collects up to 7.91" (201mm) of precipitation.

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

The months with the lowest UV index in Irvine are January through March, November and December, with an average maximum UV index of 4.

When is Daylight Saving Time (DST) in Irvine?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Irvine, California, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from PDT to PST.

What is the most humid month in Irvine?

June is the most humid month in Irvine, with an average relative humidity of 71%.

What is the driest month in Irvine?

The month with the least rainfall in Irvine, California, is June, when the rain falls for 2.2 days and typically collects 0.08" (2mm) of precipitation.

When are the longest days in Irvine?

The month with the longest days in Irvine, California, is June, with an average of 14h and 22min of daylight.

What is the month with the highest UV index in Irvine?

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

What is the month with the most sunshine in Irvine?

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

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 least humid month in Irvine?

November is the least humid month in Irvine, California, with an average relative humidity of 56%.

What is the coldest month in Irvine?

December is the coldest month in Irvine, with an average high-temperature of 63°F (17.2°C) and an average low-temperature of 51.8°F (11°C).

What is the rainiest month in Irvine?

December is the month with the most rainfall in Irvine. Rain falls for 6.9 days and accumulates 1.54" (39mm) of precipitation.

What is the month with the shortest days in Irvine?

With an average of 9h and 58min of daylight, December has the shortest days of the year in Irvine, California.

What is the month with the least sunshine in Irvine?

With an average of 6.6h of sunshine, December has the least sunshine of the year in Irvine.

Average pressure
Irvine, CA

Average pressure - Irvine, CA

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

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Average wind speed
Irvine, CA

Average wind speed - Irvine, CA

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).

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Average rainfall
Irvine, CA

Average rainfall - Irvine, CA

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

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Average rainfall days
Irvine, CA

Average rainfall days - Irvine, CA

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).

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Average daylight / Average sunshine
Irvine, CA

Average daylight / Average sunshine - Irvine, CA

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).

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days
Irvine, CA

Average sunshine days - Irvine, CA

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

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Average UV index
Irvine, CA

Average UV index - Irvine, CA

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).

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Average visibility
Irvine, CA

Average visibility - Irvine, CA

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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