The highest day temperature in March 2026 was 91°F. The lowest night temperature was 51°F. The average values for day and night temperatures during March were 74.7°F и 58.2°F respectivly.

The average sea surface temperature in March 2026 for Newport Beach was 64.0°F. The maximum and minimum values were 60.6°F and 67.2°F respectively.

Most of the days in March are sunny but you can also expect cloudy and gloomy days.

Precipitation total in March for Newport Beach is 0.5 in. It makes march one of the most rainy months of the year.

The average wind speed in March is 6.6 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 March is 7.8 hours.