Air Quality in Viljandi, Estonia
Windy
9.7°C · 82.4% humidity
9.7°
Feels 5.2°
3
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Viljandi's air quality — share it
AQI Forecast
Calibrated
3
12am
3
3
3
3am
4
4
4
6am
4
4
4
9am
3
3
3
12pm
3
3
3
3pm
3
3
3
6pm
3
3
3
9pm
3
4
Station readings
2
3
2
5
CAMS model
adj -21
24
24
24
24
25
25
25
25
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
25
Air Quality Index Trend
48h · 1 stnViljandi'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.
82.4%
Humidity
49.5 km/h
Wind SSW
1009.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
0.84 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Viljandi?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.50.84 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
0.84
Median
0.84
Average
0.84
Low
0.84
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +5.1
What is the 7-day forecast for Viljandi?
06-09
19.2° 9.7°
06-10
19.5° 9.7°
0.19 mm
06-11
19.1° 7.5°
06-12
17.2° 11.3°
1.5 mm
06-13
24.7° 12.4°
3.38 mm
06-14
19.9° 16.1°
06-15
23.3° 14.9°
0.31 mm
Both models agree
Avg diff: 3.5°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 2026-06-09T00:39 UTC.