United StatesThe weather in September in Newport Beach
It's warm in September in Newport Beach with an average temperature of 28°C. Temperatures this month range from a low of 26°C to a high of 30°C. At night, you can expect temperatures between 18°C and 21°C.
Looking for great weather? September is a good time to be in Newport Beach. The temperatures are nice, and there’s little chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Newport Beach, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 42°C in 2022, Newport Beach reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 20°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 27°C.
Water temperature
The water temperature at Newport Beach is 21°C this month. Pleasant for a swim.
Rainfall amount
In September, there is an average of 13 mm of precipitation, spread over 2 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in September for Newport Beach
Click on any day in September to get detailed info about the usual weather on that day in Newport Beach. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Newport Beach | New York | |
|---|---|---|
| Average temperature | 28°C | 27°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 18°C | -5°C |
| Total precipitation | 13 mm | 57 mm |
| Rainy days | 2 days | 9 days |
Start of September
The month of September starts in Newport Beach with hot temps, averaging around 29°C during the day and nights around 21°C.
Mid September
By mid-September, daytime temps drop to around 28°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Newport Beach is around 28°C, while nighttime temps are about 20°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
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Temperature charts
These charts show the average temperatures in September in Newport Beach, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Newport Beach
Temperature in September in Newport Beach over the years
Precipitation charts
These charts show the average amount of precipitation in September in Newport Beach, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Newport Beach
Total precipitation in September in Newport Beach over the years
Daily UV index in September in Newport Beach
This chart shows the average daily UV index in September in Newport Beach, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Newport Beach
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Average weather in Newport Beach by month
Click on a month below to see detailed weather info for Newport Beach. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.