Hourly Weather Forecast for Santa Barbara, California

Hourly Weather | Today › Wednesday, August 12, 2026

Active Weather Warnings

Coastal Flood Advisory

Santa Barbara, California

6 AM

66°

Feels Like 66°

Humidity: 91%

UV Index: 0

Wind: 4 mph

7 AM

66°

Feels Like 66°

Humidity: 92%

UV Index: 0

Wind: 5 mph

8 AM

70°

Feels Like 70°

Humidity: 83%

UV Index: 1

Wind: 5 mph

9 AM

72°

Feels Like 73°

Humidity: 81%

UV Index: 1

Wind: 6 mph

10 AM

73°

Feels Like 75°

Humidity: 77%

UV Index: 1

Wind: 6 mph

11 AM

73°

Feels Like 77°

Humidity: 73%

UV Index: 2

Wind: 7 mph

12 PM

75°

Feels Like 79°

Humidity: 70%

UV Index: 3

Wind: 7 mph

1 PM

75°

Feels Like 81°

Humidity: 67%

UV Index: 4

Wind: 8 mph

2 PM

77°

Feels Like 84°

Humidity: 63%

UV Index: 9

Wind: 8 mph

3 PM

75°

Feels Like 82°

Humidity: 65%

UV Index: 7

Wind: 8 mph

4 PM

75°

Feels Like 79°

Humidity: 66%

UV Index: 4

Wind: 8 mph

5 PM

75°

Feels Like 77°

Humidity: 68%

UV Index: 3

Wind: 8 mph

6 PM

73°

Feels Like 73°

Humidity: 71%

UV Index: 2

Wind: 8 mph

7 PM

72°

Feels Like 72°

Humidity: 76%

UV Index: 1

Wind: 7 mph

8 PM

70°

Feels Like 66°

Humidity: 81%

UV Index: 0

Wind: 6 mph

9 PM

68°

Feels Like 66°

Humidity: 82%

UV Index: 0

Wind: 6 mph

10 PM

66°

Feels Like 64°

Humidity: 85%

UV Index: 0

Wind: 5 mph

11 PM

66°

Feels Like 66°

Humidity: 84%

UV Index: 0

Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 AM

33 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.49 µg/m³
PM₁₀: 20.14 µg/m³
O₃: 0.035 ppm
NO₂: 0.3 ppb
SO₂: 0.3 ppb
CO: 0.06 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.25 µg/m³
PM₁₀: 19.45 µg/m³
O₃: 0.035 ppm
NO₂: 0.3 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.97 µg/m³
PM₁₀: 18.59 µg/m³
O₃: 0.034 ppm
NO₂: 0.3 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.69 µg/m³
PM₁₀: 17.66 µg/m³
O₃: 0.034 ppm
NO₂: 0.3 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.42 µg/m³
PM₁₀: 16.69 µg/m³
O₃: 0.034 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.13 µg/m³
PM₁₀: 15.65 µg/m³
O₃: 0.034 ppm
NO₂: 0.2 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.8 µg/m³
PM₁₀: 14.46 µg/m³
O₃: 0.034 ppm
NO₂: 0.2 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.45 µg/m³
PM₁₀: 13.25 µg/m³
O₃: 0.034 ppm
NO₂: 0.2 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.11 µg/m³
PM₁₀: 12.1 µg/m³
O₃: 0.034 ppm
NO₂: 0.1 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.72 µg/m³
PM₁₀: 10.79 µg/m³
O₃: 0.034 ppm
NO₂: 0.1 ppb
SO₂: 0.1 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.32 µg/m³
PM₁₀: 9.5 µg/m³
O₃: 0.034 ppm
NO₂: 0.1 ppb
SO₂: 0.1 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.01 µg/m³
PM₁₀: 8.57 µg/m³
O₃: 0.033 ppm
NO₂: 0.1 ppb
SO₂: 0.1 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM

30 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.83 µg/m³
PM₁₀: 8.09 µg/m³
O₃: 0.033 ppm
NO₂: 0.2 ppb
SO₂: 0.1 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM

30 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.74 µg/m³
PM₁₀: 7.99 µg/m³
O₃: 0.032 ppm
NO₂: 0.2 ppb
SO₂: 0.1 ppb
CO: 0.06 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM

29 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.71 µg/m³
PM₁₀: 8.08 µg/m³
O₃: 0.031 ppm
NO₂: 0.2 ppb
SO₂: 0.1 ppb
CO: 0.06 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM

28 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.68 µg/m³
PM₁₀: 8.1 µg/m³
O₃: 0.030 ppm
NO₂: 0.2 ppb
SO₂: 0.2 ppb
CO: 0.06 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM

27 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.61 µg/m³
PM₁₀: 7.94 µg/m³
O₃: 0.029 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM

26 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.53 µg/m³
PM₁₀: 7.66 µg/m³
O₃: 0.028 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.07 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Santa Barbara

Minor Expected Likely

Coastal Flood Advisory

Coastal Flood Advisory issued August 11 at 1:56PM PDT until August 13 at 12:00AM PDT by NWS Los Angeles/Oxnard CA

Aug 11, 1:56 PM → Aug 13, 12:00 AM

WHAT: Minor coastal flooding expected during the evening high
tides.

WHERE: Santa Barbara County Southwestern Coast, Santa Barbara
County Southeastern Coast, Ventura County Beaches, Malibu
Coast and Los Angeles County Beaches.

WHEN: Until midnight PDT Wednesday night.

IMPACTS: Flooding of sea water is likely, around the time of
high tide, over vulnerable low-lying coastal areas such as
parking lots, beaches, and walkways. Significant damage to
roads or structures is NOT expected.

ADDITIONAL DETAILS: Coastal flooding concerns will peak each
evening between about 8 PM and 10 PM due to astronomical high
tides of 7.3 to 7.5 feet.

+ Read More

Take the necessary actions to protect flood-prone property. Do NOT drive around barricades or through water of unknown depth.

Updated: Aug 12, 4:11 AM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Weather Alerts and Warnings for Santa Barbara

Coastal Flood Advisory

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