Monitoring
Climate Bulletin for Sri Lanka (Week of 18 – 28 Sep 2026)
Rainfall: After a dry week, rainfall picked up on 13 Sep with daily average reaching 16 mm. However, Southwest areas received heavy rainfall with Galle...
Weekly Air Quality in Selected Towns of Sri Lanka ( 7 – 13 September 2026)
From 07–13 September, air quality across Sri Lanka was generally in the ‘Good’ to ‘Moderate’ range. Air masses entered Sri Lanka mainly from the...
Climate Bulletin for Sri Lanka (Week of 11 – 21 Sep 2026)
SL received above average rainfall (for September) from 1-9 Sep, with daily rainfall averages ranging from 4-9 mm. During 2-8 Sep, the average daily...
Weekly Air Quality in Selected Towns of Sri Lanka ( 31 August – 06 September 2026)
From 31 August–06 September, ‘Good’ and ‘Moderate’ air quality conditions were observed across Sri Lanka. Air masses entered Sri Lanka mainly from...
Climate Bulletin for Sri Lanka (Week of 3 – 14 Sep 2026)
Monitoring: Rainfall: SL was relatively dry from 10-31 Aug with daily rainfall averaged over the island ranging from 1-5 mm. During 26 Aug - 1 Sep, the...
Weekly Air Quality in Selected Towns of Sri Lanka ( 24 – 30 August 2026)
From 24–30 August, ‘Good’ and ‘Moderate’ air quality conditions were observed across Sri Lanka. Air masses entered Sri Lanka mainly from the...
Climate Bulletin for Sri Lanka (Week of 29 Aug – 07 Sep 2026)
From 25 – 31 Aug, 45-55 mm of rainfall is predicted for the Eastern Plains; 25-45 mm of rainfall is predicted for the Western & Eastern Hills; 5-25 mm...
Weekly Air Quality in Selected Towns of Sri Lanka ( 17 – 23 August 2026)
From 17–23 August, ‘Good’ and ‘Moderate’ air quality conditions were observed across Sri Lanka. Air masses entered Sri Lanka mainly from the...
Climate Bulletin for Sri Lanka (Week of 21 – 31 Aug, 2026)
From 18-24 Aug, the US NOAA Climate Prediction Center predicts that the overall rainfall across SL shall decrease compared to the previous week. During this...
Weekly Air Quality in Selected Towns of Sri Lanka ( 10 – 16 August 2026)
From 10–13 August, air quality across most of Sri Lanka was in the ‘Moderate’ range. Thereafter, air quality improved from 14–16 August,...