The Rand just hit its weakest level since July – Here’s why and what to do about it

Last week, the rand slipped past R16.60 to the dollar – its weakest level since July.

If you’ve been following South African financial news, you might be tempted to reach for the usual explanations. Political uncertainty. Load-shedding. The current account deficit. The structural weaknesses that South Africa carries like a weight around its neck.

But this move has almost nothing to do with South Africa.

What’s driving the rand lower

Three weeks ago, the US Federal Reserve raised interest rates for the first time since 2023 — from 3.5% to a target range of 3.75% to 4%. The move was driven by August inflation data that came in higher than expected, fuelled by the ongoing Iran war oil shock that has kept energy prices elevated since February.

When the Fed raises rates, it makes dollar-denominated assets more attractive. US Treasury bonds now pay a higher return than they did a month ago. For global investors managing large pools of capital, that improvement in the risk-free return in dollars makes emerging market assets relatively less attractive. Money flows toward the dollar. The dollar strengthens. Currencies like the rand weaken.

This mechanism isn’t new. It’s the oldest and most reliable transmission channel between US monetary policy and emerging market currencies.

And it’s not finished.

Goldman Sachs has pushed its forecast for the next US rate hike from October to December and expects two more hikes in total before the end of 2026. That means the same force that has weakened the rand over the past month is likely to operate again in December.

The history that every rand investor needs to know

South Africans have lived through this movie before. Twice in the past decade, it has been very expensive.

In 2013, Ben Bernanke uttered the word “tapering” – signalling that the Fed would eventually reduce its bond-buying programme. Markets called it the “taper tantrum.” The rand moved from approximately R9 to the dollar to R11 in months. Not because South Africa changed. Because the dollar strengthened as US rates began their journey higher.

In 2022, the Fed raised rates aggressively from near zero to 4.25%-4.5% over twelve months. The rand went from approximately R15 to a peak of nearly R18 over that cycle. Again, not because South Africa deteriorated dramatically, but because dollar strength is the automatic consequence of Fed tightening, and the rand is one of the most dollar-sensitive currencies in the world due to its deep liquidity in emerging market trading.
The current cycle is following the same script.

The South African dimension: Why the rand is more vulnerable than most

South Africa’s unemployment rate sits at 33.6% – the highest of any major economy. The current account is structurally negative. Growth is anaemic. And critically, the SARB raised its own repo rate to 7.25% in September, which provides some interest rate differential support for the rand but also signals that domestic inflation pressures remain elevated.

The rand-dollar interest rate differential – the gap between South Africa’s 7.25% and the US’s 4% – is what keeps international investors holding rand-denominated assets rather than simply taking their money to the US.

That differential is currently 3.25 percentage points. As the Fed raises rates further, that differential narrows. A narrowing differential reduces the yield advantage that compensates investors for holding an emerging market currency. Less compensation means less demand. Less demand means a weaker rand.

This is the mathematics of currency depreciation during US tightening cycles, and South Africa experiences it more acutely than most because its yield differential starts from a position of genuine vulnerability, not strength.

What the rand’s weakness costs you whether you think about it or not

A weaker rand is a direct cost that shows up in your life within weeks.

Petrol prices are set in dollars and converted to rand. A 4% rand depreciation this month means petrol costs approximately 4% more than the global oil price alone would suggest. Diesel follows. And diesel (as covered recently in MoneyMorning) feeds into freight costs, food prices and the cost of almost every manufactured good sold in South Africa.

South Africa imports a significant portion of its consumer goods, electronics, pharmaceuticals and industrial inputs in dollar terms. When the rand weakens 4% in a month, every imported product in your shopping basket becomes proportionally more expensive. The inflation that the

SARB is trying to contain becomes harder to contain precisely because the currency that is being weakened by the same force creating inflation is also passing that weakness through to domestic prices.

It’s a pressure from both sides simultaneously. Higher global prices and a weaker currency to pay for them.

What to watch and what to do

The rand’s near-term trajectory depends on two things that will be clarified in the next eight weeks.

First, the US data, and the October inflation print expected mid-month. If jobs are strong and inflation stays elevated, the December hike becomes more certain and the dollar stays firm. If data softens, the December hike gets pushed back and the rand gets some relief.

Second, the Iran situation. Oil at $100 is the underlying inflation driver that forced the September hike in the first place. Any credible diplomatic progress that brings oil prices down reduces the inflation pressure that’s forcing the Fed’s hand. Lower oil, lower inflation, less aggressive Fed, stronger rand.

For South African investors, the practical response is positioning.

Rand-hedge assets benefit directly from rand weakness. Exporters in mining, technology services and agriculture improve their rand-translated earnings when the currency falls. Domestic-only businesses with imported input costs face the opposite pressure.

The rand at R16.67 today may look like a problem. For the right portfolio, it’s also an opportunity.

The current cycle is not new. The mechanism is not mysterious. The history tells you exactly what happens next.

Watch the US jobs data. Watch the December Fed meeting. And make sure your portfolio is positioned for the rand’s reality rather than the rand you wish existed.