Webtoday's newport beach sea temperature is 64 °f. 63 ° f to 68 ° f. Sunny with pleasantly warm air temperatures. Websep 15, 2021 · the average sea temperature for newport beach on october 4th over the last 10 years is 20. 86° c (69. 54° f), with a low temperature of 18. 17° c (64. 71° f) and a. Webview accurate newport beach wind, swell and tide forecasts for any gps point. Customize forecasts for any offshore location and save them for future use. Websep 25, 2024 · temperature of the sea in newport beach today. Currently, the sea water temperature in newport beach is at most: (or 1° higher than the seasonal norm). Webnewport beach, orange county water and sea temperatures for today, this week, this month and this year.