Air Quality in Viljandi, Estonia
Cloudy
19.9°C · 74.7% humidity
19.9°
Feels 19.9°
5
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Viljandi's air quality — share it
AQI Forecast
Calibrated
6
11pm
6
6
5
2am
6
6
6
5am
6
6
6
8am
6
6
6
11am
6
6
6
2pm
6
7
7
5pm
6
6
6
8pm
6
7
Station readings
5
7
5
CAMS model
adj -18
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
25
25
24
24
24
24
25
Air Quality Index Trend
47h · 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.
74.7%
Humidity
31.5 km/h
Wind S
1015.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.21 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Viljandi?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.51.21 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
1.21
Median
1.21
Average
1.21
Low
1.21
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +4.7
What is the 7-day forecast for Viljandi?
08-03
19.9° 14.0°
0.13 mm
08-04
19.1° 14.6°
4.81 mm
08-05
18.7° 10.7°
2.63 mm
08-06
26.4° 11.6°
3.0 mm
08-07
26.3° 14.9°
08-08
26.2° 13.1°
0.06 mm
08-09
16.6° 13.8°
0.44 mm
Both models agree
Avg diff: 3.6°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 2026-08-07T23:56 UTC.