Average sea water temperature in September:
+68.8°F
| Minimum sea water temperature in September: | 75.2°F |
| Maximum sea water temperature in September: | 63.3°F |
Daily 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.
Monthly sea water temperature in Irvine, °F
Which USA resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Key West | 86.9°F | 87.4°F |
| Fort Lauderdale | 86.4°F | 86.4°F |
| Miami Beach | 86.1°F | 86.3°F |
| Naples | 86.1°F | 87.2°F |
| Corpus Christi | 85.8°F | 84.7°F |
| Miami | 85.8°F | 86.0°F |
| Houston | 84.9°F | 83.4°F |
| Siesta Key | 84.9°F | 86.8°F |
| Sarasota | 84.8°F | 86.7°F |
| Cocoa Beach | 84.6°F | 85.2°F |
| Tampa | 84.3°F | 86.0°F |
| New Orleans | 84.3°F | 82.9°F |
| St. Petersburg | 84.1°F | 86.1°F |
| Clearwater Beach | 84.0°F | 86.2°F |
| Panama City Beach | 83.4°F | 84.8°F |
| Destin | 83.1°F | 84.5°F |
| Orlando | 82.8°F | 83.6°F |
| Daytona Beach | 82.7°F | 83.2°F |
| St. Augustine | 81.8°F | 82.7°F |
| Kauai | 81.5°F | 79.4°F |
Best time for vacation in Irvine
Irvine on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Irvine
Local time: 19:17
June 28, sunday
2100
64°F
N
6 mph
6 mph
June 29, monday
0000
61°F
N
7 mph
7 mph
0300
61°F
NW
7 mph
7 mph
0600
63°F
N
6 mph
6 mph
0900
68°F
N
7 mph
7 mph
1200
70°F
N
11 mph
11 mph
1500
72°F
N
11 mph
11 mph
1800
70°F
N
10 mph
10 mph
