Cape Town's six major dams are holding just 73.6% of total capacity this week — an improvement from 64.8% at the same point last year.
Combined system · Data as of 15 June 2026
73.6%
660,845 ML stored of 898,221 ML total capacity.
▲8.8 pts vs 15 June 2025 (64.8%)
Key indicators · dam storage
Water stored
660.8 Gl
▲ 78.8 Gl vs last year
YoY gap
+8.8pts
vs same week 2025
Highest dam
99.5%
Wemmershoek · was 60.4% in 2025
Lowest dam
50.3%
Steenbras Lower · was 47.4% in 2025
Rainfall — last 12 weeks
mm per week · 2026 vs 2025
Rainfall · June
32 mm
▼ 111 mm vs June 2025
Rainfall · last 12 weeks
270 mm
▲ 64 mm vs same period 2025
Weekly precipitation, Cape Town
2026 (this year)2025 (prior year)
Over the last 12 weeks, Cape Town has received 64 mm more rainfall than the same period in 2025 — a 31% surplus.
Weekly trend — how the gap widened
System total % · Jan–Apr 2026 vs 2025
Combined storage, week by week
2026 (this year)2025 (prior year)
The gap between the two years has widened steadily, from early in the year to a -8.8-point deficit this week. Cape Town is currently at 73.6% compared to 64.8% this time last year.