June weather forecast
Irvine, CA

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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 June

As summer hits its stride, June in Irvine experiences an increase in the average temperature while rainfall is at its lowest of 0.08" (2mm). The cooler evenings provide a perfect counterbalance to the warm daytime weather. The city is usually bustling with summer events, including numerous outdoor fairs and festivals. Reduced rainfall and increased warmth create an ideal ambiance for beach visits and barbecues. In June, the city truly comes alive with summer activities.

Temperature

June's average high-temperature stands at a warm 73.6°F (23.1°C), showing little deviation from May's 69.8°F (21°C). Irvine's average low-temperature in the month of June is recorded at a moderate 58.5°F (14.7°C).

Humidity

With an average relative humidity of 71%, June is the most humid month.

Rainfall

June is the month with the least rainfall. Rain falls for 2.2 days and accumulates 0.08" (2mm) of precipitation.

Daylight

June has the longest days of the year, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 5:41 am and sunset at 7:56 pm. On the last day of June, sunrise is at 5:44 am and sunset at 8:05 pm PDT.

Sunshine

In Irvine, the average sunshine in June is 11.8h.

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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 in June translates into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in June?

The average high-temperature and low-temperature during June are 73.6°F (23.1°C) and 58.5°F (14.7°C) respectively.

What is the most humid month?

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

What is the average humidity in June?

In Irvine, the average relative humidity in June is 71%.

What is the driest month?

June is the month with the least rainfall. Rain falls for 2.2 days and accumulates 0.08" (2mm) of precipitation.

How much does it rain in June?

In Irvine, during June, the rain falls for 2.2 days and regularly aggregates up to 0.08" (2mm) of precipitation.

When are the longest days?

The month with the longest days is June, with an average of 14h and 24min of daylight.

What is the average length of the day in June?

The average day length in June is 14h and 22min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 5:41 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:05 pm PDT.

How many hours of sunshine does Irvine have in June?

In Irvine, the average sunshine duration in June is 11.8h.

What is the month with the highest UV index?

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

What is the UV index intensity in June?

In June, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 June
Irvine, CA

Average temperature in June - Irvine, CA
  • Average high temperature in June: 73.6°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 June: 58.5°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).

Average pressure in June
Irvine, CA

Average pressure in June - Irvine, CA
  • Average pressure in June: 29.88"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).

Average wind speed in June
Irvine, CA

Average wind speed in June - Irvine, CA
  • Average wind speed in June: 5.3mph

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).

Average humidity in June
Irvine, CA

Average humidity in June - Irvine, CA
  • Average humidity in June: 71%

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

Average rainfall in June
Irvine, CA

Average rainfall in June - Irvine, CA
  • Average rainfall in June: 0.08"

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

Average rainfall days in June
Irvine, CA

Average rainfall days in June - Irvine, CA
  • Average rainfall days in June: 2.2 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).

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

Average daylight in June / Average sunshine in June - Irvine, CA
  • Average daylight in June: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in June: 11h and 5min

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).

Average sunshine days in June
Irvine, CA

Average sunshine days in June - Irvine, CA
  • Average sunshine days in June: 22.3 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).

Average UV index in June
Irvine, CA

Average UV index in June - Irvine, CA
  • Average UV index in June: 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).

Average cloud cover in June
Irvine, CA

Average cloud cover in June - Irvine, CA
  • Average cloud cover in June: 13

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

Average visibility in June
Irvine, CA

Average visibility in June - Irvine, CA
  • Average visibility in June: 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).

Irvine, California, USA

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