Is there a water shortage in Cape Town?

Where the dams stand in October 2026

Cape Town's six major dams hold 898 million cubic metres when full. On 14 October 2026 they held 74.7% of that, against 90.7% on the same date in 2025. The chart below shows the last two years week by week: a full system in late 2024, a normal summer decline, a poor 2025 winter that peaked at 92.6%, a steep fall to 44.8% in April 2026, the May storm, and a winter that stalled in July.

Two weeks of the rainy season remain. The City said on 2 October that the dams "look unlikely to reach the 80% threshold", and its 5 October dashboard adds that current forecasts show no significant rainfall in the near future. The decision on restrictions does not rest with the City: the national Department of Water and Sanitation runs its annual operating analysis of the whole Western Cape system after the hydrological year ends in October and sets any restrictions for all users, including the farms and towns that share the dams.

How unusual is this?

Mid-October is a useful date to compare years, because it comes at the end of the rainy season, when the dams are usually at their fullest. On that basis 2026 is the fourth-lowest of the past fifteen years. Only the three drought years of 2015, 2016 and 2017 were lower, and 2018, the year of the Day Zero countdown, had already recovered to 76% by mid-October thanks to a wet winter and extreme saving.

Full years are common: in seven of the fifteen years the dams were at or above 99% in mid-October. That is what the system is designed for. Going into summer at 75% means the dams will carry less into next winter, and a second poor winter in 2027 would bring restrictions back for certain. One wet winter, as in 2018 and 2020, would restore the buffer.

Why the winter did not fill the dams

In every year since 2012 except one, the dams gained ground between late July and mid-October, as the late-winter fronts crossed the catchments: by as little as half a point in years when they were already full, and by as much as 27 points in 2012. In 2026 they lost 3.9 points. The only other year with a late-winter decline is 2014, when the dams were at 100% in July and simply spilled.

The May storm, which the City described as a 1-in-20 to 1-in-200 year event in several catchments, is the reason the picture is not worse. It raised combined storage from about 51% on 11 May to 70.8% on 18 May, and the City left its Early Drought Caution on 22 May. The same storms flooded parts of the West Coast and Cape Winelands and killed eleven people. Without it the system would have gone into winter at the levels of 2017.

Fourteen years in one chart

The long view explains why 74.7% causes concern without causing panic. The system fell to 19.6% in June 2017 and 20.0% in April 2018, the two lowest readings in the series, when the City counted down to Day Zero and cut households to 50 litres a person a day. Today's level is almost four times that. It is also, though, the lowest start to a summer since that drought, and the City's drought framework is designed to act early rather than late.

Dam by dam

Theewaterskloof, near Villiersdorp, holds more than half of the system's capacity, so its 75% weighs most in the total. The two dams that have fallen furthest are Voëlvlei, which supplies the West Coast and the northern suburbs, and Steenbras Lower above Gordon's Bay; both were full a year ago. The dark marker on each bar is the level on the same date in 2025.

Source: City of Cape Town dam reading, 14 October 2026. Change in percentage points versus the same date in 2025. Live updates: capetowndata.com/dam-levels

Source: City of Cape Town Weekly Water Dashboard, 5 October 2026, which compares each dam with the same week in earlier years.

How much water the city uses

The City supplied an average of 891 million litres a day in the week to 5 October, 874 of them from the major dams, 15 from groundwater and springs and 2 from minor dams. Its winter limit is 860 MLD, and last summer it asked residents to stay under 975 MLD. Use peaked at 1,073 MLD in late February, fell to about 874 MLD after the May rain, and has crept back up as the weather warmed. About 70% of the city's water goes to homes, which is why the City's request is aimed at households.

The comparison with 2018 shows what restrictions can do: at the peak of the crisis the city used about 516 million litres a day, roughly half of today's figure, with a larger population now than then. The City also loses roughly 23% of its water to leaks and unmetered use, a structural loss that no single wet month repairs, and its New Water Programme of desalination, groundwater and reuse is still years from adding the 300 MLD it promises.

What happens next: the City's drought framework

Since the 2018 crisis the City has run a five-step Bulk Water Drought Monitoring and Response Framework, and each step is tied to projected dam storage. The dashboard moved from Water Wise to Early Drought Caution in October 2025, back to Water Wise after the May storm, and to Drought Response by early October 2026.

• Wise water useDams on track to be near full by November. Permanent by-laws apply; no extra measures.
• Early drought cautionModelling shows the dams unlikely to reach 95% by 1 November. Internal response committees are activated and repairs prioritised. In force October 2025 to May 2026.
• Drought responseDam storage well short of target at the end of the rainy season. Demand management stepped up, formal restrictions discussed with the national department. In force now.
• Accelerated drought responseThe fourth step, for a system that keeps falling through the summer.
• Emergency drought responseThe final step, the equivalent of the measures of early 2018.

If restrictions come, they will be announced by the City after the national decision, with a level and a set of rules. The City's scale runs from Level 1, a request to cut use by 10% with limits on garden watering, to Level 6B, the 50 litres a person a day of early 2018. A first step this summer would most likely be at the lower end: restricted watering hours, a ban on hosepipes for washing cars and paving, and a restriction tariff that raises the price of water above a basic allocation.

"Proactive water savings remains of utmost importance as dam levels look unlikely to reach the 80% threshold," said Zahid Badroodien, the City's Mayoral Committee Member for Water and Sanitation, on 2 October. Residents, he said, should not wait for the national decision before cutting back.

The Day Zero crisis, and how 2026 compares

Cape Town has been here before, and much worse. The Day Zero crisis of 2017 to 2018 followed three poor winters in a row; the current position follows one poor winter and one dry one, after a full system in 2024. Here is how the crisis unfolded and where 2026 sits against it.

Frequently asked questions

Molteno Reservoir vulnerability

One piece of infrastructure remains a weak point regardless of dam levels: the Molteno Reservoir in Oranjezicht. In December 2025, the City issued urgent warnings as this historic service reservoir, which feeds the City Bowl and Atlantic Seaboard, was strained by peak-hour consumption.

The Molteno issue is a distribution problem, not a bulk-supply failure. When residents draw water faster than the trunk mains can refill the reservoir, pressure drops and air can enter the system, causing localised outages. Mechanical failures at pumps and valves in May 2025 also left the system more vulnerable.

Higher dam levels do not remove this risk. The reservoir is most strained during summer peak demand, so the pressure eases in winter. The City still flags supply disruptions in parts of the metro from time to time, and any sharp local demand spike can overwhelm the Molteno system.

Areas most vulnerable to pressure drops

These suburbs are served by the Molteno Reservoir system and are most at risk of localised supply disruptions during periods of high demand.

Map: distribution vulnerability zone

Molteno Reservoir and surrounding City Bowl and Atlantic Seaboard suburbs

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Stay water-wise: what you can do right now

Standing water by-laws apply in Cape Town at all times. Full regulations are on the City of Cape Town's ThinkWater website.

For visitors: Cape Town is a fully functional city with reliable tap water. Being water-conscious in hotels, guesthouses and holiday rentals is appreciated and expected, and may become a requirement if restrictions are introduced.