Hourly Weather | Today Monday, September 21, 2026
Kihei, Hawaii
5 AM
Cloudy Weather
77°
Feels Like 77°
0
Humidity: 78%
UV Index: 0
Wind: 11 mph
6 AM
Cloudy Weather
75°
Feels Like 77°
1
Humidity: 80%
UV Index: 0
Wind: 11 mph
7 AM
Cloudy Weather
75°
Feels Like 79°
3
Humidity: 84%
UV Index: 1
Wind: 11 mph
8 AM
Cloudy Weather
79°
Feels Like 84°
3
Humidity: 75%
UV Index: 2
Wind: 12 mph
9 AM
Cloudy Weather
82°
Feels Like 90°
3
Humidity: 68%
UV Index: 4
Wind: 12 mph
10 AM
Cloudy Weather
86°
Feels Like 95°
3
Humidity: 61%
UV Index: 6
Wind: 12 mph
11 AM
Cloudy Weather
88°
Feels Like 99°
3
Humidity: 56%
UV Index: 9
Wind: 12 mph
12 PM
Cloudy Weather
91°
Feels Like 100°
4
Humidity: 53%
UV Index: 10
Wind: 12 mph
1 PM
Cloudy Weather
90°
Feels Like 99°
6
Humidity: 56%
UV Index: 9
Wind: 12 mph
2 PM
Cloudy Weather
90°
Feels Like 97°
6
Humidity: 58%
UV Index: 6
Wind: 12 mph
3 PM
Cloudy Weather
88°
Feels Like 95°
6
Humidity: 60%
UV Index: 4
Wind: 15 mph
4 PM
Cloudy Weather
88°
Feels Like 91°
6
Humidity: 64%
UV Index: 2
Wind: 16 mph
5 PM
Cloudy Weather
86°
Feels Like 90°
6
Humidity: 66%
UV Index: 1
Wind: 17 mph
6 PM
Cloudy Weather
86°
Feels Like 88°
6
Humidity: 68%
UV Index: 0
Wind: 16 mph
7 PM
Cloudy Night
84°
Feels Like 88°
7
Humidity: 73%
UV Index: 0
Wind: 14 mph
8 PM
Cloudy Night
82°
Feels Like 86°
7
Humidity: 74%
UV Index: 0
Wind: 12 mph
9 PM
Cloudy Night
81°
Feels Like 86°
7
Humidity: 77%
UV Index: 0
Wind: 12 mph
10 PM
Cloudy Night
81°
Feels Like 84°
7
Humidity: 80%
UV Index: 0
Wind: 12 mph
11 PM
Cloudy Night
79°
Feels Like 84°
7
Humidity: 82%
UV Index: 0
Wind: 11 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.55 µg/m³
  • PM10: 17.91 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.1 ppb
  • SO2: 1.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

6 AM
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.03 µg/m³
  • PM10: 16.88 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

7 AM
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 16.07 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 AM
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.29 µg/m³
  • PM10: 15.42 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

9 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 14.74 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

10 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.9 µg/m³
  • PM10: 14.33 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.9 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

11 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.78 µg/m³
  • PM10: 14.13 µg/m³
  • O3: 0.023 ppm
  • NO2: 0 ppb
  • SO2: 0.9 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

12 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.7 µg/m³
  • PM10: 13.24 µg/m³
  • O3: 0.023 ppm
  • NO2: 0 ppb
  • SO2: 0.8 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

1 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 12.35 µg/m³
  • O3: 0.022 ppm
  • NO2: 0 ppb
  • SO2: 0.7 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

2 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.62 µg/m³
  • PM10: 11.65 µg/m³
  • O3: 0.022 ppm
  • NO2: 0 ppb
  • SO2: 0.6 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

3 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.51 µg/m³
  • PM10: 10.69 µg/m³
  • O3: 0.022 ppm
  • NO2: 0 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

4 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.41 µg/m³
  • PM10: 9.92 µg/m³
  • O3: 0.021 ppm
  • NO2: 0 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

5 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.41 µg/m³
  • PM10: 9.5 µg/m³
  • O3: 0.021 ppm
  • NO2: 0 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

6 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.61 µg/m³
  • PM10: 9.64 µg/m³
  • O3: 0.021 ppm
  • NO2: 0.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

7 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4 µg/m³
  • PM10: 10.25 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

8 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.39 µg/m³
  • PM10: 10.8 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

9 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.83 µg/m³
  • PM10: 11.52 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.9 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

10 PM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 11.97 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.1 ppb
  • SO2: 1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

11 PM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.49 µg/m³
  • PM10: 12.01 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.1 ppb
  • SO2: 1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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