Measurements:
°C
°F
Newport Beach
66°F
N 6 mph
Feels like: 66°F
Precip: 23%
World Resorts USA Newport Beach Weather

Newport Beach Sea Water Temperature

Current Sea Water Temperature:
+65.6°F
Maximum Sea Water Temperature in June: 71.6°F
Minimum Sea Water Temperature in June: 63.2°F
Average water temperature in June: 67.2°F

Sea Water Temperature for the Last 10 Days:

June 04 65.6°F May 29 64.2°F
June 03 65.2°F May 28 65.4°F
June 01 63.4°F May 27 65.6°F
May 31 63.2°F May 26 66.8°F
May 30 63.6°F May 25 67.6°F

When is the Warmest Sea for Newport Beach?

According to our data for the last three years for Newport Beach the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Newport Beach was 72.8°F. The maximum and minimum values were 66.6°F and 76.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

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.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Newport Beach was 69.0°F. The maximum and minimum values were 66.4°F and 72.0°F respectively.

Best Time to Visit Newport Beach
The most sunny months:
July 24 days
August 24 days
October 22 days
The most warm months:
August 82.3 °F
September 81.1 °F
July 80.1 °F
Warmest sea temperature:
August 71.5 °F
September 70.8 °F
July 69.7 °F
The most cold months:
January 65.4 °F
December 65.4 °F
March 65.6 °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

Newport Beach on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Newport Beach
Local time: 09:54
04 jun, thursday
1200 72°F
N
7 mph
1500 74°F
NE
8 mph
1800 72°F
N
7 mph
2100 68°F
N
4 mph
05 jun, friday
0000 66°F
N
4 mph
0300 66°F
N
3 mph
0600 66°F
N
3 mph
0900 70°F
N
4 mph