Air Quality in Chilaw, Sri Lanka

Windy
27.1°C · 82.2% humidity
27.1°
Feels 32.8°
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
41 11am
41
41
50 2pm
47
46
44 5pm
43
43
42 8pm
42
42
41 11pm
41
41
41 2am
41
41
41 5am
41
41
41 8am
41
41
Station readings
38
40
45
CAMS model adj +7
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

47h · 1 stn

Chilaw's air quality is affected by vehicle emissions, industrial activity, and seasonal crop burning. Air quality typically worsens from November to February due to temperature inversions trapping pollutants near the surface.

82.2%
Humidity
128.9 km/h
Wind SW
1011.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
50
12.0 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Chilaw?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.512.0 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
12.0
Median
12.0
Average
11.4
Low
12.6
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -4.9

What is the 7-day forecast for Chilaw?

08-03
27.1° 26.7°
0.88 mm
08-04
27.4° 26.5°
0.56 mm
08-05
27.3° 26.9°
0.19 mm
08-06
27.2° 26.9°
6.19 mm
08-07
27.3° 26.9°
0.62 mm
08-08
27.4° 26.9°
0.19 mm
08-09
27.5° 26.7°
1.38 mm
Both models agree Avg diff: 0.7°C

Where are air quality stations near Chilaw?

59
Chilaw
0.8 km PM2.5: 16.0 µg/m³ PM10: 32.2 µg/m³
57
Chilaw
0.8 km PM2.5: 14.8 µg/m³ PM10: 29.6 µg/m³
61
Chilaw
0.8 km PM2.5: 16.8 µg/m³ PM10: 32.2 µg/m³
68
Chilaw
0.8 km PM2.5: 20.2 µg/m³ PM10: 39.2 µg/m³
46
Chilaw
0.8 km PM2.5: 11.0 µg/m³ PM10: 23.4 µg/m³
49
Chilaw
0.8 km PM2.5: 11.8 µg/m³ PM10: 25.2 µg/m³
178
Chilaw
0.8 km PM2.5: 108.2 µg/m³ PM10: 172.0 µg/m³
43
Chilaw
0.8 km PM2.5: 10.4 µg/m³ PM10: 21.6 µg/m³
125
Chilaw
0.8 km PM2.5: 45.2 µg/m³ PM10: 78.0 µg/m³
67
Chilaw
0.8 km PM2.5: 19.6 µg/m³ PM10: 36.0 µg/m³

What cities are near Chilaw?

39 Negombo 39 Katunayaka 40 Puttalam 30 Ja Ela 30 Kandana 31 Welisara 34 Kurunegala 31 Hendala 31 Wattala 32 Peliyagoda
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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 2026-08-08T09:10 UTC.