Tomorrow Hourly Weather Forecast for Costa Mesa, CA

Hourly Weather | Tomorrow › Thursday, December 25, 2025

Active Weather Warnings

High Surf Advisory

Costa Mesa, California

12 AM

59°

Feels Like 54°

Humidity: 97%

Wind: 7 mph

UV Index: 0

1 AM

59°

Feels Like 54°

Humidity: 97%

Wind: 6 mph

UV Index: 0

2 AM

59°

Feels Like 57°

Humidity: 97%

Wind: 6 mph

UV Index: 0

3 AM

57°

Feels Like 57°

Humidity: 98%

Wind: 6 mph

UV Index: 0

4 AM

57°

Feels Like 54°

Humidity: 98%

Wind: 6 mph

UV Index: 0

5 AM

57°

Feels Like 52°

Humidity: 100%

Wind: 6 mph

UV Index: 0

6 AM

59°

Feels Like 57°

Humidity: 95%

Wind: 6 mph

UV Index: 0

7 AM

59°

Feels Like 54°

Humidity: 94%

Wind: 12 mph

UV Index: 0

8 AM

61°

Feels Like 55°

Humidity: 91%

Wind: 13 mph

UV Index: 0

9 AM

63°

Feels Like 55°

Humidity: 88%

Wind: 13 mph

UV Index: 0

10 AM

64°

Feels Like 57°

Humidity: 84%

Wind: 14 mph

UV Index: 1

11 AM

64°

Feels Like 59°

Humidity: 81%

Wind: 15 mph

UV Index: 1

12 PM

66°

Feels Like 61°

Humidity: 76%

Wind: 15 mph

UV Index: 1

1 PM

66°

Feels Like 64°

Humidity: 79%

Wind: 9 mph

UV Index: 1

2 PM

66°

Feels Like 64°

Humidity: 79%

Wind: 9 mph

UV Index: 1

3 PM

64°

Feels Like 61°

Humidity: 81%

Wind: 8 mph

UV Index: 0

4 PM

64°

Feels Like 63°

Humidity: 83%

Wind: 8 mph

UV Index: 0

5 PM

63°

Feels Like 61°

Humidity: 85%

Wind: 7 mph

UV Index: 0

6 PM

63°

Feels Like 57°

Humidity: 86%

Wind: 7 mph

UV Index: 0

7 PM

61°

Feels Like 54°

Humidity: 87%

Wind: 14 mph

UV Index: 0

8 PM

61°

Feels Like 54°

Humidity: 87%

Wind: 14 mph

UV Index: 0

9 PM

61°

Feels Like 55°

Humidity: 88%

Wind: 14 mph

UV Index: 0

10 PM

61°

Feels Like 55°

Humidity: 89%

Wind: 13 mph

UV Index: 0

11 PM

61°

Feels Like 52°

Humidity: 90%

Wind: 14 mph

UV Index: 0

Weather Alerts and Warnings for Costa Mesa

Minor Expected Likely

High Surf Advisory

High Surf Advisory issued December 24 at 2:37AM PST until December 27 at 11:00AM PST by NWS San Diego CA

Dec 24, 2:37 AM → Dec 27, 11:00 AM

WHAT: Large breaking waves of 5 to 8 feet with local sets to
9 feet, highest for south-facing beaches.

WHERE: San Diego County Coastal Areas and Orange County
Coastal Areas.

WHEN: Until 11 AM PST Saturday.

IMPACTS: Dangerous swimming and surfing conditions and
localized beach erosion.

ADDITIONAL DETAILS: Minor tidal overflow and coastal flooding
possible for south-facing beaches today, especially during high
tide this morning, due to strong southerly winds.

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Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

Updated: Dec 24, 11:01 AM Source: NWS Alert