Measurements:
°C
°F
Newport Beach
56°F
S 2 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Newport Beach Weather

Newport Beach Sea Water Temperature

Current Sea Water Temperature:
+65.2°F
Maximum Sea Water Temperature in December: 65.8°F
Minimum Sea Water Temperature in December: 59.0°F
Average water temperature in December: 61.6°F

Sea Water Temperature for the Last 10 Days:

December 05 65.2°F November 30 65.6°F
December 04 65.4°F November 29 66.0°F
December 03 65.0°F November 28 66.0°F
December 02 65.8°F November 27 65.2°F
December 01 65.8°F November 26 65.6°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:
August 24 days
July 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:
March 64.1 °F
January 64.6 °F
December 65.0 °F
The most rainy months:
January 2 days
December 2 days
February 1 day
The most windy months:
March 6 mph
May 6 mph
April 6 mph

Newport Beach on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Newport Beach
Local time: 23:58
05 dec, friday
0000 56°F
S
2 mph
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