Measurements:
°C
°F
Newport Beach
56°F
NW 5 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Newport Beach Weather

Newport Beach Sea Water Temperature

Current Sea Water Temperature:
+65.8°F
Maximum Sea Water Temperature in April: 66.4°F
Minimum Sea Water Temperature in April: 54.4°F
Average water temperature in April: 60.5°F

Sea Water Temperature for the Last 10 Days:

April 03 65.8°F March 29 65.8°F
April 02 65.8°F March 28 66.8°F
April 01 66.4°F March 27 67.2°F
March 31 66.0°F March 26 66.4°F
March 30 65.6°F March 25 66.8°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:
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
Chicago +46
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +54
Los Angeles +56
Maui +66
Miami +74
Miami Beach +78
New York +40
San Diego +58
San Francisco +50
Sarasota +72
Tampa +72
Washington +48
24 Hours Weather Forecast
Newport Beach
Local time: 02:50
03 apr, friday
0300 56°F
NW
5 mph
0600 54°F
NW
6 mph
0900 64°F
SW
2 mph
1200 76°F
S
4 mph
1500 82°F
SE
4 mph
1800 80°F
SE
6 mph
2100 74°F
SE
5 mph
04 apr, saturday
0000 68°F
NW
8 mph