Theewaterskloof Dam Level Today
On the Riviersonderend, Western Cape. Full supply capacity 479 million m3. Current as of 2026-04-20.
This is below the 50% mark where municipalities often begin introducing water-use restrictions.
Theewaterskloof Dam Level History
Showing 2 weekly readings from 2025-10-13 to 2026-04-20.
About Theewaterskloof Dam
Theewaterskloof is the single largest reservoir in the Western Cape Water Supply System and by far the most important water source for Cape Town. During the 2017-2018 'Day Zero' drought this dam fell to below 11% full. Its level is the headline metric for Cape Town water security.
Theewaterskloof Dam has a full supply capacity of 479.3 million cubic metres (Mm3) and sits on the Riviersonderend in Western Cape. At 43.2% full, the dam currently holds roughly 207.0 Mm3 of water, equivalent to about 207040 million litres.
This is below the 50% mark where municipalities often begin introducing water-use restrictions.
Restriction thresholds to watch: most municipalities begin issuing warning notices when a supply dam drops below 50%, introduce Level 1 restrictions around 40%, and escalate further below 30%. Exact thresholds vary by water authority.
Which Towns and Cities Does Theewaterskloof Dam Supply?
Theewaterskloof Dam supplies water to Cape Town, Stellenbosch, Paarl and Somerset West.
Key supply areas: Cape Town, Stellenbosch, Paarl, Somerset West.
Theewaterskloof Dam - Frequently Asked Questions
Is Theewaterskloof Dam running dry?
Theewaterskloof Dam is currently 43.2% full, which is below the 50% mark. This is not "running dry" but is low enough that water restrictions may be in effect for affected areas.
When was Theewaterskloof Dam last full?
Based on available data from 2025-10-13 to 2026-04-20, Theewaterskloof Dam has not reached 99%+ full within this period. The highest recorded level was 84.6%.
What cities does Theewaterskloof Dam supply?
Theewaterskloof Dam supplies water to Cape Town, Stellenbosch, Paarl and Somerset West. Theewaterskloof is the single largest reservoir in the Western Cape Water Supply System and by far the most important water source for Cape Town. During the 2017-2018 'Day Zero' drought this dam fell to below 11% full. Its level is the headline metric for Cape Town water security.
What river is Theewaterskloof Dam on?
Theewaterskloof Dam is on the Riviersonderend in Western Cape.
How is the Theewaterskloof Dam level trending?
Theewaterskloof Dam is currently at 43.2% full. The level is stable, with a change of only 0.4% from last week. Compared to this time last year (61.5%), the dam is noticeably lower.
Other Dams in Western Cape
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