Measurements:
°C
°F
CURRENT WEATHER
08:45
Irvine
72°F
N 4 mph
Feels like: 72°F
Precip: 5%
World Resorts USA Irvine Weather

7 Day Weather Forecast

09.15
tue
DAY
80°F
NE 7 mph
precip
2%
NIGHT
70°F
N 5 mph
precip
6%
09.16
wed
DAY
80°F
NE 9 mph
precip
1%
NIGHT
68°F
NE 4 mph
precip
6%
09.17
thu
DAY
78°F
NE 7 mph
precip
1%
NIGHT
68°F
NE 2 mph
precip
5%
09.18
fri
DAY
80°F
NE 6 mph
precip
1%
NIGHT
70°F
N 3 mph
precip
5%
09.19
sat
DAY
82°F
E 6 mph
precip
1%
NIGHT
72°F
NE 3 mph
precip
15%
09.20
sun
DAY
82°F
NE 7 mph
precip
2%
NIGHT
70°F
N 5 mph
precip
8%
09.21
mon
DAY
78°F
NE 6 mph
precip
2%
NIGHT
70°F
NE 3 mph
precip
8%

Irvine Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Irvine was 23.3°F. The maximum and minimum values were 22.2°F and 25.1°F respectively.

Irvine on the Weather Map

Best Time to Visit Irvine
The most sunny months:
August 25 days
October 24 days
July 24 days
The most warm months:
August 86.8 °F
July 84.5 °F
September 84.2 °F
Warmest sea temperature:
August 72.3 °F
September 70.9 °F
July 70.4 °F
The most cold months:
January 66.5 °F
December 66.8 °F
March 67.4 °F
The most rainy months:
December 2 days
January 1 day
April 1 day
The most windy months:
May 6 mph
March 6 mph
April 6 mph
more details