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<script src="https://www.waterdashboard.co.za/widget.js" data-variant="level" async></script>The dams started 2010 at 92% full and ended it at 84%. They were lowest at 63% on 2 May 2010 and highest at 95% on 4 November 2010.
The 22nd lowest yearly low of the 27 years since 2000.
Winter rain was 73% of average, and it was a La Niña winter.
Winter rain is April to September in central Cape Town (Open-Meteo), against the average winter since 2000.
The average combined level in each month.
| Month | Average level |
|---|---|
| January | 88% |
| February | 80% |
| March | 72% |
| April | 69% |
| May | 72% |
| June | 82% |
| July | 88% |
| August | 91% |
| September | 94% |
| October | 94% |
| November | 93% |
| December | 87% |
Combined storage of the six big dams, by date. Normal is the middle half of the years before it.
| Date | 2010 | 2009 | Normal range |
|---|---|---|---|
| 1 Jan | 92% | 92% | 71% to 90% |
| 15 Jan | 89% | 90% | 64% to 87% |
| 1 Feb | 84% | 85% | 59% to 85% |
| 15 Feb | 80% | 81% | 56% to 81% |
| 1 Mar | 76% | 77% | 52% to 77% |
| 15 Mar | 73% | 74% | 48% to 74% |
| 1 Apr | 72% | 69% | 44% to 69% |
| 15 Apr | 69% | 66% | 41% to 66% |
| 1 May | 63% | 63% | 39% to 63% |
| 15 May | 74% | 62% | 40% to 62% |
| 1 Jun | 78% | 68% | 44% to 65% |
| 15 Jun | 82% | 76% | 48% to 69% |
| 1 Jul | 85% | 88% | 53% to 77% |
| 15 Jul | 87% | 99% | 54% to 87% |
| 1 Aug | 90% | 99% | 63% to 96% |
| 15 Aug | 91% | 101% | 68% to 100% |
| 1 Sep | 94% | 101% | 81% to 101% |
| 15 Sep | 94% | 102% | 84% to 102% |
| 1 Oct | 94% | 101% | 85% to 101% |
| 15 Oct | 94% | 101% | 86% to 100% |
| 1 Nov | 94% | 99% | 85% to 99% |
| 15 Nov | 93% | 102% | 84% to 99% |
| 1 Dec | 91% | 99% | 81% to 99% |
| 15 Dec | 87% | 96% | 77% to 96% |
Source: City of Cape Town. History from City open data (2000 to January 2026).