Cape Town residents are being urged to use water sparingly as a brutal heatwave pushes up demand across the metro and wider Western Cape. City officials have warned that water restrictions could arrive earlier than expected if consumption stays too high and dam levels keep dropping.

The City of Cape Town said its dams are sitting about 17.5% lower than they were at the same time last year. Officials linked the drop largely to heavier water use during the intense heat. The city also said an Early Drought Caution alert level has been in place since October 2025, showing that the system is already under pressure.

City Warns the Window is Closing

Mayoral Committee Member for Water and Sanitation Zahid Badroodien said the situation could worsen fast if residents keep using more water than the allocation set by the national Department of Water and Sanitation. He said the city’s dams are already moving closer to the 50% mark because of sustained week-on-week use.

While no formal restrictions are in place right now, the city said people need to act before the pressure becomes harder to manage. Residents are being asked to cut non-essential water use, especially during the hottest parts of the day. Earlier this year, the city warned that restrictions could be introduced as early as 1 November 2026 if current consumption trends continue.

Heatwave Sends Temperatures Soaring

The warning comes as parts of the Western Cape record extreme March temperatures. According to the South African Weather Service, several stations across the province and the Namakwa District posted their highest March temperatures in more than a decade.

Among the highest readings were 44.8°C in Alexander Bay, 43.5°C in Garies, 42.7°C in Worcester, 42.1°C at Kirstenbosch National Botanical Garden and 41.3°C in Ceres. Cape Point also hit 40°C, beating its previous March record of 39.3°C. Within Cape Town, the city recorded a new March minimum temperature record of 29.2°C overnight.

Winter Rain now Matters More Than Ever

Badroodien said Cape Town is not officially in a drought, but the room to avoid restrictions later this year is shrinking. He warned that if rainfall is only average and water use remains high, dam levels could fall to around 40% by May.

For residents, the message is simple: the taps are still running, but the pressure on the system is real. And with winter rains still months away, every litre now counts.