Air Quality in Santarém, Portugal
Windy
21.3°C · 49.4% humidity
21.3°
Feels 21.3°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Santarém's air quality — share it
AQI Forecast
Calibrated
40
1pm
40
40
54
4pm
50
47
45
7pm
44
43
42
10pm
21
21
21
1am
20
20
20
4am
20
20
20
7am
20
13
20
10am
20
20
Station readings
21h ago
AQI 28
PM2.5 6.7 µg/m³ · 21h ago
CAMS model
adj -14
54
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
34
34
34
34
27
34
34
34
Air Quality Index Trend
37h · 1 stnSantarém'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.
49.4%
Humidity
95.7 km/h
Wind NNW
1015.8 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
13.5 µg/m³
PM10
48.05 µg/m³
050100150200300500
What is the weather forecast for Santarém?
Temperature & Precipitation
PM2.5 Trend
37h · 1 stationPM2.513.5 µg/m³
✓ WHO
Moderate
PM1048.05 µg/m³
Good
UV INDEX9.4
Very High
What is the 7-day forecast for Santarém?
09-05
33.6° 17.1°
09-06
29.8° 16.5°
09-07
31.1° 13.5°
09-08
26.6° 16.5°
2.5 mm
09-09
37.8° 15.0°
09-10
30.5° 18.8°
0.13 mm
09-11
29.6° 17.0°
Both models agree
Avg diff: 4.8°C
Where are air quality stations near Santarém?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T15:51 UTC.