A surge in extreme temperatures across Cape Town has triggered fresh concerns about the city’s water supply, with officials warning that restrictions could arrive sooner than expected if consumption continues climbing.
City authorities say dam levels supplying the metro have dropped sharply compared with the same time last year, largely due to increased water use during the ongoing heatwave, as per Business Tech.
Current levels are sitting about 17.5% lower than they were during the same period a year ago, raising alarms about how quickly reserves are being depleted as residents try to cope with the scorching conditions.
Zahid Badroodien said the city is already seeing usage creeping beyond the allocation set by the Department of Water and Sanitation.
‘With the heat wave expected this week in our city, I’m anticipating that our water usage will once again increase to well beyond the allocation given to us,’ he said.
According to the city, dam levels are already approaching the 50% mark after weeks of sustained demand, placing additional pressure on the system ahead of the winter rainfall season.
Although water restrictions have not yet been introduced, residents are being urged to start cutting back immediately to help preserve remaining supplies.
Badroodien appealed to households to use water carefully while the city waits for winter rains to replenish its reservoirs.
Officials say hot weather typically pushes water demand higher, but the current heatwave is driving consumption even further as residents attempt to cool down during the extreme conditions.
Non-essential water use, particularly during peak heat periods, is being discouraged as the city tries to keep usage within manageable levels.
Earlier this year, the municipality warned that restrictions could potentially be introduced as early as 1 November if consumption patterns remain high and dam levels continue declining.
City authorities also confirmed that an Early Drought Caution alert level has been in place since October last year, signalling that the water system is already under strain even though the metro has not officially been declared in drought conditions.
If rainfall this year is only average and usage remains elevated, projections suggest dam levels could drop to roughly 40% by May.
Badroodien said the city is currently in an early warning phase, meaning supply remains stable but the margin for error is shrinking.
‘While there is no immediate threat to supply, the system is entering a more sensitive period ahead of winter rainfall,’ he said.
The warning comes as temperatures across the Western Cape have surged to extreme levels during the heatwave.
According to the South African Weather Service, several weather stations across the province and the Namakwa District have recorded their highest March temperatures in more than a decade.
One of the most intense readings was recorded in Alexander Bay, where temperatures reached 44.8°C, surpassing the previous March record of 43.4°C set nine years ago.
Other parts of the region also experienced blistering heat, including 43.5°C in Garies, 42.7°C in Worcester, 42.1°C at Kirstenbosch National Botanical Garden and 41.3°C in Ceres.
Even coastal areas experienced unusual extremes, with Cape Point reaching 40°C and breaking its previous March record of 39.3°C.
Within the Cape Town metro itself, temperatures have remained abnormally high overnight.
The city recorded a new March minimum temperature record of 29.2°C, well above the previous overnight record of 26.8°C set 17 years ago.
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