Newport Beach Weather: September
 |
Average Day Temperature: | 81.1°F |
|
Average Night Temperature: | 70.9°F |
|
Sea Water Temperature: | 70.8°F |
|
Number of Sunny Days: | 21 days |
| Sunshine Hours: | 11.9 - 12.9 hours | |
|
Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.0 in | |
| detailed information | ||
forecast
| Newport Beach |
Temperature
| Newport Beach |
Air Temperature in September, °F
The highest day temperature in September 2025 was 84°F. The lowest night temperature was 63°F. The average values for day and night temperatures during September were 77.1°F и 68.1°F respectivly.
Newport Beach Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Newport Beach was 71.7°F. The maximum and minimum values were 68.6°F and 74.2°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Newport Beach is 0.0 in. It makes september one of the least rainy months of the year.
The average wind speed in September is 5.6 mph. This value is relatively stable throughout the year.
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 Newport Beach in September is 10.1 hours.
Newport Beach on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+20 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0300 |  |
52°F | S 3 mph |
| 0600 | |
48°F | SW 1 mph |
| 0900 |  |
52°F | NW 1 mph |
| 1200 | |
68°F | NE 3 mph |
| 1500 | |
72°F | NE 5 mph |
| 1800 | |
66°F | NE 5 mph |
| 2100 | |
62°F | NE 3 mph |
| 0000 | |
60°F | NE 1 mph |