Measurements:
°C
°F
Irvine
56°F
SW 2 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Irvine Weather May Weather in Irvine

Irvine Weather: May

Average Day Temperature: 72.9°F
Average Night Temperature: 61.5°F
Sea Water Temperature: 64.3°F
Number of Sunny Days: 20 days
Sunshine Hours: 13.5 - 14.2 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.1 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

The highest day temperature in May 2025 was 91°F. The lowest night temperature was 56°F. The average values for day and night temperatures during May were 72.6°F и 60.3°F respectivly.

Irvine Water Sea Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Irvine was 65.3°F. The maximum and minimum values were 62.2°F and 68.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Irvine is 0.1 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 6.4 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Irvine in May is 10.7 hours.

Best Time to Visit Irvine
The most sunny months:
August 26 days
July 25 days
October 24 days
The most warm months:
August 85.7 °F
September 84.2 °F
July 83.7 °F
Warmest sea temperature:
August 71.7 °F
September 70.9 °F
July 70.0 °F
The most cold months:
March 65.0 °F
January 65.5 °F
December 66.1 °F
The most rainy months:
January 2 days
December 2 days
February 1 day
The most windy months:
May 6 mph
March 6 mph
April 6 mph

Irvine on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Irvine
Local time: 00:01
05 dec, friday
0300 52°F
SW
2 mph
0600 46°F
W
2 mph
0900 50°F
NW
2 mph
1200 70°F
NE
3 mph
1500 72°F
NE
5 mph
1800 66°F
NE
4 mph
2100 58°F
NE
2 mph
06 dec, saturday
0000 56°F
NE
1 mph