World Resorts USA Irvine Weather

Irvine 7 Days Forecast

07.09
mon
Day
93°F
SE 5 mph
Precip.
11%
Night
81°F
E 1 mph
Precip.
4%
08.09
tue
Day
93°F
E 6 mph
Precip.
1%
Night
84°F
N 4 mph
Precip.
0%
09.09
wed
Day
99°F
E 6 mph
Precip.
1%
Night
81°F
NE 4 mph
Precip.
3%
10.09
thu
Day
93°F
NE 6 mph
Precip.
1%
Night
79°F
N 3 mph
Precip.
2%
11.09
fri
Day
86°F
NE 7 mph
Precip.
1%
Night
73°F
N 7 mph
Precip.
6%
12.09
sat
Day
79°F
N 8 mph
Precip.
2%
Night
68°F
N 6 mph
Precip.
7%
13.09
sun
Day
77°F
E 6 mph
Precip.
2%
Night
70°F
NE 3 mph
Precip.
6%

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 69.4°F. The highest and lowest sea temperatures during the month were 72.0°F and 66.4°F.

Air temperature in Irvine, °F

Precipitation total in Irvine, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Irvine

Sunniest months:
August 25 days
October 24 days
July 24 days
Warmest months:
August 83.1 °F
July 81.0 °F
September 80.8 °F
Warmest sea temp:
August 70.1 °F
September 68.8 °F
July 68.3 °F
Coldest months:
January 64.9 °F
December 65.1 °F
March 65.7 °F
Rainiest months:
December 2 days
January 1 day
April 1 day
Windiest months:
May 6.4 mph
March 6.2 mph
April 6.2 mph

Irvine on a weather map

Irvine
+95°F
E 7 mph
Feels like: +102°F
Precip.: 10%
Places in USA:
Name
°F
+79°F
+86°F
+79°F
+102°F
+95°F
+82°F
+68°F
+84°F
+82°F
+79°F
+81°F
+91°F
+84°F
+95°F
+77°F
24 Hours Forecast
Irvine
Local time: 16:15
September 07, monday
1800
91°F
E
7 mph
2100
82°F
NE
2 mph
September 08, tuesday
0000
81°F
E
1 mph
0300
81°F
NW
1 mph
0600
79°F
SW
2 mph
0900
84°F
E
2 mph
1200
93°F
E
6 mph
1500
95°F
E
9 mph
Units of measurement: °C / °F