Realtime

Sri Lanka Water Levels

River-gauge readings from the Department of Irrigation, updated every minute.

Station

42 stations · 20 basins

Siyambalanduwa

Heda Oya

Normal

Latest

0.44

23 May 2026, 07:00

Alert

4.50

Minor flood

6.00

Major flood

7.00

Last 4 days · 96 readings · Asia/Colombo. Units are reported by the source as-is — Kelani Ganga stations are in feet; other basins may differ.

Medium confidence

Steady+0.00 → 0.44

Local trend

+0.00/h

Upstream avg

n/a (top)

Rain here (6h)

0.0mm

Rain upstream (6h)

n/a