Critical Dams
4
Gamka, Leeu-Gamka, Hartebeestkuil, Prinsrivier
HIGH RISKDrought Period
2015-2018
Cape Town Water Crisis Era
EXTREMERainfall Deficit
50-65%
Below average in Karoo regions (2016-2018)
CRITICALHeat Extremes
39°C
Peak temps during drought (2017)
HIGH STRESSRainfall Trends Analysis
Monitor rainfall patterns across 17 locations in the Garden Route & Karoo region
Historical Average
700mm
30-year baseline
2016-2018 Status
35-50% Below
Critical drought period
Current Trend
Recovering
Post-2020 improvement
Regional Comparison (2016-2026 Average)
Comparing rainfall across all zones
Report Information
- • Analysis Period: 2011-2026 (15 years dam data)
- • Climate Context: 1996-2026 (30 years)
- • Geographic Coverage: Western Cape Garden Route & Karoo
- • Monitoring: 11 major dams, 17 rainfall locations
Data Sources
- • Department of Water and Sanitation (DWS) HyData
- • SA Weather Service (SAWS) Rainfall Records
- • UCT CSAG Climate Impact Studies
- • WMO State of Global Climate 2024
Report Generated: January 2026 | AgriCultureSA Water Security Analysis