Water temperature in Newport Beach (CA) in March
Is it warm enough to swim in Newport Beach in March? Average water temperature in Newport Beach in March is 58.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Newport Beach in March is 65.3°F, and the coldest is 53.8°F. Average high air temperature in Newport Beach in March is 63°F, and average low temperature is 52°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Newport Beach
Changes water temperature in Newport Beach in March 2026, 2025
To get an accurate forecast for the water temperature in Newport Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Newport Beach, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of March.
You can choose any other years:
| Day | 2026 | 2025 | Min | Max |
|---|---|---|---|---|
| March 1 | 62.1°F | 59°F | 55.6°F | 62.4°F |
| March 2 | 61.7°F | 59°F | 54.9°F | 62.6°F |
| March 3 | 61.5°F | 58.1°F | 55°F | 62.4°F |
| March 4 | 61.5°F | 57°F | 55.6°F | 62.4°F |
| March 5 | 61.7°F | 56.1°F | 55.8°F | 62.4°F |
| March 6 | 61°F | 55.8°F | 55.6°F | 62.4°F |
| March 7 | 56.1°F | 55.8°F | 61.9°F | |
| March 8 | 55.4°F | 55.2°F | 62.1°F | |
| March 9 | 56.5°F | 55.6°F | 62.4°F | |
| March 10 | 56.7°F | 55.8°F | 62.6°F | |
| March 11 | 56.8°F | 55.9°F | 62.4°F | |
| March 12 | 56.8°F | 55.8°F | 62.1°F | |
| March 13 | 57°F | 55.9°F | 62.4°F | |
| March 14 | 57°F | 56.3°F | 62.8°F | |
| March 15 | 56.1°F | 56.1°F | 63°F |
| Day | 2026 | 2025 | Min | Max |
|---|---|---|---|---|
| March 16 | 56.3°F | 55.9°F | 63.3°F | |
| March 17 | 57.6°F | 55.9°F | 63.9°F | |
| March 18 | 56.8°F | 55.2°F | 63.9°F | |
| March 19 | 56.3°F | 54°F | 63.5°F | |
| March 20 | 56.7°F | 53.8°F | 63.5°F | |
| March 21 | 56.7°F | 54.9°F | 63.7°F | |
| March 22 | 57.6°F | 55.4°F | 63.7°F | |
| March 23 | 58.3°F | 55.8°F | 63.5°F | |
| March 24 | 57.7°F | 55.9°F | 63.7°F | |
| March 25 | 58.5°F | 56.3°F | 64.2°F | |
| March 26 | 58.5°F | 56.3°F | 64.8°F | |
| March 27 | 58.5°F | 56.5°F | 65.3°F | |
| March 28 | 58.6°F | 56.5°F | 64.9°F | |
| March 29 | 57.4°F | 56.8°F | 64.9°F | |
| March 30 | 57.6°F | 57.2°F | 64.8°F | |
| March 31 | 57.9°F | 56.3°F | 64.2°F |
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Average water temperature in Newport Beach in March over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 61.2°F | 59.9°F | 58.8°F | 58.6°F | 60.4°F |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 57.2°F | 59.5°F | 56.5°F | 59.5°F | 57.2°F |
Newport Beach sea state in March
Chart comparing the height of waves in Newport Beach in March over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Weather and climate in Newport Beach in March
This data display average monthly climate indicators in Newport Beach in March based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip
- Average HIGH temperature63°F
- Average LOW temperature52°F
- Average rainfall days6 days
- Average rainfall43mm/1.7''
- Average daylight12h
- Average sunshine9h
- Average UV index6
Newport Beach water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
