Air Quality in Viljandi, Estonia
Drizzle
11.9°C · 86.5% humidity
11.9°
Feels 11.9°
2
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Viljandi's air quality — share it
AQI Forecast
Calibrated
3
8pm
3
3
2
11pm
3
3
3
2am
3
3
3
5am
3
3
4
8am
4
4
3
11am
3
3
3
2pm
3
3
3
5pm
3
3
Station readings
6
2
2
1
CAMS model
adj -21
24
24
24
24
24
24
24
24
24
24
24
24
25
25
25
24
24
24
24
24
24
24
24
24
Air Quality Index Trend
45h · 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.
86.5%
Humidity
60.6 km/h
Wind NNE
1007.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
0.49 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Viljandi?
Temperature & Precipitation
PM2.5 Trend
45h · 1 stationPM2.50.49 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
0.49
Median
0.49
Average
0.49
Low
0.49
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +5.3
What is the 7-day forecast for Viljandi?
05-28
18.8° 8.3°
1.37 mm
05-29
22.8° 4.8°
05-30
14.6° 3.3°
5.87 mm
05-31
19.3° 5.4°
06-01
23.4° 12.6°
06-02
27.0° 7.9°
06-03
25.2° 6.4°
0.06 mm
Both models agree
Avg diff: 3.9°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 2026-05-28T20:16 UTC.