Air Quality in Ratnapura, Sri Lanka

Heavy Rain
20.9°C · 99.8% humidity
20.9°
Feels 20.9°
67
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
67 9pm
67
65
67 12am
65
65
65 3am
65
65
65 6am
65
65
65 9am
65
65
65 12pm
65
65
65 3pm
65
67
67 6pm
74
67
Station readings
67
65
70
CAMS model adj +40
27
27
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
27
27
34
27
AD 728×90

Air Quality Index Trend

47h · 1 stn

Ratnapura'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 Ratnapura is 4.0× the WHO annual guideline of 5 µg/m³.

99.8%
Humidity
31.1 km/h
Wind W
1013.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
67
19.86 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.519.86 µg/m³ ×1.3 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
19.86
Median
19.86
Average
18.79
Low
21.2
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -13.9
05-28
25.5° 20.7°
21.81 mm
05-29
23.3° 20.1°
20.25 mm
05-30
24.0° 20.4°
23.06 mm
05-31
24.9° 20.3°
6.19 mm
06-01
23.4° 20.2°
18.87 mm
06-02
23.8° 20.1°
26.62 mm
06-03
23.6° 20.6°
11.12 mm
Get AQI alerts for Ratnapura

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T19:03 UTC.