Air Quality in Colombo, Sri Lanka

Rain
28.7°C · 76.7% humidity
28.7°
Feels 34.7°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
40 7pm
31
36
40 10pm
38
37
34 1am
33
32
32 4am
32
31
33 7am
33
33
33 10am
33
31
33 1pm
33
31
33 4pm
33
40
Station readings
55
31
36
47
CAMS model adj +6
34
34
34
27
27
27
25
25
25
25
25
25
27
27
27
27
27
25
27
27
25
27
27
34
AD 728×90

Air Quality Index Trend

48h · 2 stn

Colombo'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. Current PM2.5 concentration in Colombo is 1.9× the WHO annual guideline of 5 µg/m³.

76.7%
Humidity
134.4 km/h
Wind WSW
1010.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
40
9.46 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.59.46 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
9.46
Median
9.74
Average
0.62
Low
19.0
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -3.3
05-28
29.2° 28.7°
12.06 mm
05-29
29.0° 28.0°
15.44 mm
05-30
28.7° 28.4°
22.13 mm
05-31
28.7° 28.5°
11.69 mm
06-01
28.7° 28.4°
7.06 mm
06-02
28.5° 28.2°
11.31 mm
06-03
28.6° 28.3°
8.69 mm
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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 2026-05-28T17:13 UTC.