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Guam Government House (Hagatna) (GU)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Rain showers
25°C
Rain showers
Humidity
84.1%
Wind
6 m/s
Pressure
1010.8 hPa
Direction
63°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
24° / 30°
Precip.
3.1mm
Max wind
11 m/s

Hourly Forecast

20.03
Now
Weather
25°
0.4
6
20.03
20:00
Weather
24°
6
20.03
21:00
Weather
25°
6
20.03
22:00
Weather
26°
6
20.03
23:00
Weather
27°
6
21.03
00:00
Weather
28°
0.3
7
21.03
01:00
Weather
29°
0.7
7
21.03
02:00
Weather
30°
0.7
7
21.03
03:00
Weather
30°
0.7
7
21.03
04:00
Weather
30°
0.2
8
21.03
05:00
Weather
29°
0.1
8
21.03
06:00
Weather
29°
9
21.03
07:00
Weather
28°
9
21.03
08:00
Weather
27°
10
21.03
09:00
Weather
27°
10
21.03
10:00
Weather
26°
10
21.03
11:00
Weather
26°
11
21.03
12:00
Weather
26°
11
21.03
13:00
Weather
26°
11
21.03
14:00
Weather
26°
11
21.03
15:00
Weather
26°
11
21.03
16:00
Weather
27°
10
21.03
17:00
Weather
27°
10
21.03
18:00
Weather
27°
10

Temperature

30°C
24°C
19:00
25°C
20:00
24°C
21:00
25°C
22:00
26°C
23:00
27°C
00:00
28°C
01:00
29°C
02:00
30°C
03:00
30°C
04:00
30°C
05:00
29°C
06:00
29°C
07:00
28°C
08:00
27°C
09:00
27°C
10:00
26°C
11:00
26°C
12:00
26°C
13:00
26°C
14:00
26°C
15:00
26°C
16:00
27°C
17:00
27°C
18:00
27°C
19:00 06:00 18:00

Precipitation

0.7mm
0mm
19:00
0.4mm
00:00
0.3mm
01:00
0.7mm
02:00
0.7mm
03:00
0.7mm
04:00
0.2mm
05:00
0.1mm
19:00 06:00 18:00

Wind

11m/s
0m/s
19:00
6.3 m/s
20:00
5.7 m/s
21:00
6.3 m/s
22:00
6.1 m/s
23:00
6.1 m/s
00:00
6.6 m/s
01:00
6.6 m/s
02:00
7 m/s
03:00
7.3 m/s
04:00
7.8 m/s
05:00
8.3 m/s
06:00
8.5 m/s
07:00
9.2 m/s
08:00
9.5 m/s
09:00
9.5 m/s
10:00
9.7 m/s
11:00
11 m/s
12:00
10.5 m/s
13:00
10.7 m/s
14:00
10.9 m/s
15:00
10.8 m/s
16:00
10.4 m/s
17:00
10.3 m/s
18:00
10.1 m/s
19:00 06:00 18:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
6.3 km
6
2%

Measurement time: 2026-03-20 17:29

Calculated from PM2.5/PM10

O3
6.3 km
81.49 µg/m3
50.9%

Measurement time: 2026-03-20 17:29

source: OpenWeatherMap

PM10
6.3 km
5.93 µg/m3
4.2%

Measurement time: 2026-03-20 17:29

source: OpenWeatherMap

PM2.5
6.3 km
1.56 µg/m3
1.9%

Measurement time: 2026-03-20 17:29

source: OpenWeatherMap

CO
6.3 km
0.12582 mg/m3
0.9%

Measurement time: 2026-03-20 17:29

source: OpenWeatherMap

NO2
6.3 km
0.11 µg/m3
0.1%

Measurement time: 2026-03-20 17:29

source: OpenWeatherMap

SO2
6.3 km
0.1 µg/m3
0%

Measurement time: 2026-03-20 17:29

source: OpenWeatherMap

About Air Quality in Guam Government House

Air quality in Guam Government House is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Guam Government House

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Guam Government House?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Guam Government House

If you're planning outdoor activities in Guam Government House, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.