Air Quality in Halden, Norway
Drizzle
16.5°C · 79.4% humidity
16.5°
Feels 16.5°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Halden's air quality — share it
AQI Forecast
Calibrated
23
2am
23
23
18
5am
19
20
23
8am
24
24
24
11am
25
25
23
2pm
23
23
25
5pm
32
32
32
8pm
25
23
23
11pm
23
23
Station readings
30
27
28
CAMS model
adj -2
25
25
25
25
25
25
27
27
27
27
27
27
25
25
25
27
34
34
34
27
25
25
25
25
Air Quality Index Trend
15h · 1 stnHalden's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.
79.4%
Humidity
68.6 km/h
Wind SSW
1007.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.3 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Halden?
Temperature & Precipitation
PM2.5 Trend
15h · 1 stationPM2.54.3 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
4.3
Median
4.3
Average
4.3
Low
4.3
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +1.6
What is the 7-day forecast for Halden?
08-03
20.9° 14.7°
0.13 mm
08-04
20.2° 12.9°
0.81 mm
08-05
17.2° 10.0°
0.38 mm
08-06
16.3° 13.5°
0.19 mm
08-07
20.8° 14.9°
0.75 mm
08-08
16.0° 12.4°
3.5 mm
08-09
15.2° 12.5°
4.44 mm
Both models agree
Avg diff: 2.4°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T03:04 UTC.