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Costa Mesa, CA Marine Weather Forecast

Today - 65°F
Dec 21, 2025
0 to 10 mph NW
Partly Sunny
Partly sunny, with a high near 65. Northwest wind 0 to 10 mph, with gusts as high as 20 mph.
Tonight - 54°F
Dec 21, 2025
5 to 10 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 54. Northwest wind 5 to 10 mph.
Monday - 64°F
Dec 22, 2025
0 to 10 mph NW
Mostly Cloudy
Mostly cloudy, with a high near 64. Northwest wind 0 to 10 mph.
Monday Night - 55°F
Dec 22, 2025
5 to 10 mph S
Cloudy
Cloudy, with a low around 55. South wind 5 to 10 mph.
Tuesday - 63°F
Dec 23, 2025
5 to 15 mph SE
Rain Showers Likely
Rain showers likely after 10am. Cloudy, with a high near 63. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Tuesday Night - 58°F
Dec 23, 2025
15 to 25 mph SE
Rain Showers
Rain showers before 4am, then showers and thunderstorms. Cloudy, with a low around 58. Chance of precipitation is 100%.
Wednesday - 64°F
Dec 24, 2025
15 to 20 mph S
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 64.
Wednesday Night - 59°F
Dec 24, 2025
10 to 15 mph S
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 59.
Christmas Day - 65°F
Dec 25, 2025
10 to 15 mph S
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 65.
Thursday Night - 57°F
Dec 25, 2025
10 mph S
Rain Showers
Rain showers. Cloudy, with a low around 57.
Friday - 62°F
Dec 26, 2025
10 mph S
Rain Showers
Rain showers. Cloudy, with a high near 62.
Friday Night - 53°F
Dec 26, 2025
5 to 10 mph SW
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a low around 53.
Saturday - 61°F
Dec 27, 2025
5 mph SW
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 61.
Saturday Night - 51°F
Dec 27, 2025
5 mph NE
Chance Rain Showers
A chance of rain showers. Partly cloudy, with a low around 51.

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