Africa Daily Economic Briefing - 29 September 2026

African monetary policy is diverging as South Africa responds to renewed oil-driven inflation while Nigeria eases and Ghana holds rates steady.

Executive Summary

African economies are entering the final quarter of 2026 with a more difficult policy mix. Renewed disruption to global oil supplies has pushed Brent crude back above US$107 a barrel, raising fuel, transport and financing risks for oil-importing economies. At the same time, domestic inflation paths are diverging enough to produce sharply different central-bank decisions.

South Africa raised its policy rate by 25 basis points to 7.25% last week as headline inflation reached 4.4% and the Reserve Bank judged the risks to the outlook to be on the upside. Nigeria moved in the opposite direction, resetting its Monetary Policy Rate from 26.5% to 23%, while retaining stringent reserve requirements. Ghana held its policy rate at 14%, signalling that its priority remains consolidation of recent stabilization gains.

The central message for policymakers and businesses is that lower domestic inflation does not remove external vulnerability. Higher oil prices, a stronger US dollar and rising global bond yields can quickly re-enter African economies through fuel costs, exchange rates, debt service and imported inputs.

Key Developments

1. Renewed oil shock complicates Africa’s inflation outlook

Brent crude rose above US$107 a barrel on 28 September as the US-Iran standoff kept supply risks elevated. The World Bank’s latest commodity assessment projects energy prices to rise by 24% in 2026, with overall commodity prices up 16%.

This is a highly uneven shock for Africa. Oil exporters may receive stronger export and fiscal revenues if production volumes hold, but importers face deteriorating trade balances, higher transport and electricity costs, and renewed pressure on inflation. Countries that subsidise fuel or regulate pump prices also face a direct fiscal trade-off between protecting households and preserving budget discipline.

2. South Africa tightens as growth weakens and inflation rises

The South African Reserve Bank increased the policy rate by 25 basis points to 7.25%, effective 25 September. The decision was unanimous. The Bank reported headline inflation of 4.4%, highlighted rising fuel and services inflation, and expects inflation to return to its 3% target only towards the end of 2027. It also cut its 2026 growth forecast to 1.2% from 1.4%.

The move comes after real GDP contracted by 0.2% quarter on quarter in the second quarter. Trade activity fell 1.9%, manufacturing declined 1.8%, and mining contracted 3.0%. The combination of weak activity and external inflation pressure leaves limited room for demand support through monetary policy.

3. Nigeria eases sharply while Ghana stays on hold

The Central Bank of Nigeria reset its Monetary Policy Rate to 23% at its 21-22 September meeting, down from 26.5%. It retained the cash reserve requirement at 45% for deposit money banks, 16% for merchant banks and 75% for non-Treasury Single Account public-sector deposits.

The decision lowers the policy signal but does not amount to broad monetary accommodation. High reserve requirements continue to restrain banking-system liquidity, while the recalibrated standing-facility corridor preserves a strong incentive to manage excess liquidity.

The Bank of Ghana, meanwhile, kept its policy rate at 14% at its 23-24 September meeting. The hold is consistent with a consolidation phase after rapid disinflation and an improvement in external buffers. Ghana’s policy challenge is to support growth without weakening the fiscal, debt and monetary credibility rebuilt under its recently completed IMF Extended Credit Facility and new Policy Coordination Instrument.

Country Watch

South Africa

The rand traded around R16.40 per US dollar in early trade on 28 September, about 0.5% weaker on the day, as oil prices rose. The country’s exposure is two-sided: higher imported energy costs weaken the trade and inflation outlook, while lower precious-metal prices reduce a potential export cushion. The South African Reserve Bank’s Quarterly Bulletin for the period ending June 2026 is scheduled for release at 10:00 SAST today and will provide fuller detail on household finances, credit, savings and the external accounts.

Nigeria

Nigeria’s 350-basis-point policy-rate reduction is the most significant recent shift among major African central banks. For businesses, the key test is whether it produces a durable decline in market lending rates. That transmission will depend on banking liquidity, inflation expectations, fiscal injections and foreign-exchange stability. For government, lower rates could eventually ease domestic debt-service pressure, but premature fiscal expansion would risk slowing disinflation and weakening the naira.

Kenya

Kenya’s headline inflation was 6.6% in August, within the official 5% plus-or-minus 2.5 percentage-point target band but higher than earlier in 2026. The Central Bank Rate remains at 8.75%, and the next Monetary Policy Committee meeting is scheduled for 7 October. With Kenya a net fuel importer, elevated oil prices strengthen the case for caution even as policymakers seek to support credit and growth.

Other Notable Developments

Ghana: The 14% policy-rate hold reinforces a stability-first stance. Fiscal transparency, state-owned-enterprise risks and disciplined management of development spending remain central to sustaining lower inflation and improved market confidence.

Eswatini: Headline inflation was 2.8% in August. The lilangeni’s one-to-one peg with the rand supports exchange-rate stability, but also means South African interest-rate and currency conditions transmit quickly into Eswatini. Higher imported fuel costs are therefore the main near-term inflation risk.

Malawi: The World Bank’s latest Malawi Economic Monitor says growth remains too weak to produce meaningful gains in living standards and projects real GDP growth of 2.8% in 2027. Persistent inflation, foreign-exchange distortions, power constraints and weak domestic supply chains continue to suppress investment and export diversification.

Markets and Commodities

• Oil: Brent crude traded above US$107 a barrel on 28 September, almost 20% higher for the month at one point. Sustained prices at this level would worsen inflation and current-account pressures across net importers.
• South African rand: The rand weakened to about R16.40 per US dollar in early trade on 28 September as the oil shock weighed on risk-sensitive currencies.
• Gold: Spot gold fell more than 3% to around US$4,147 an ounce on 28 September as rising global yields increased the opportunity cost of holding non-yielding assets. That removes part of the commodity-price cushion available to gold exporters.
• Broader commodity signal: World Bank data show its energy price index rose 8.8% in August, while crude oil increased 5.7% and precious metals rose 8.8%. Volatility, rather than a uniform commodity upswing, is now the dominant external-sector risk.

Policy Implications

1. Central banks need to distinguish first-round fuel effects from persistent inflation. Policy should prevent energy costs from becoming embedded in wages, services and expectations without overreacting to a temporary price-level shock.
2. Fiscal authorities should avoid open-ended fuel subsidies. Targeted, time-limited support for vulnerable households is less damaging to budgets and price signals than broad price suppression.
3. Revenue authorities should plan for asymmetric effects. Oil exporters may record windfall receipts, while import-dependent economies may lose revenue through weaker demand or incur larger subsidy costs. Scenario-based cash management is essential.
4. Debt managers face renewed refinancing pressure. Higher global yields and a stronger dollar raise the cost of external borrowing, increasing the value of domestic-market development and credible medium-term fiscal frameworks.
5. Businesses should stress-test energy and currency exposures. Transport-intensive firms and importers face the most immediate margin pressure, while exporters with dollar revenues may receive a partial hedge.

What to Watch Next

• South Africa’s Quarterly Bulletin at 10:00 SAST today, particularly household finances, credit growth, savings and external-sector detail.
• Any end-September decision from the National Bank of Ethiopia, following its July commitment to maintain a tight stance and reconvene by the end of September.
• South African external-debt, international-investment-position and central-government finance data due on 30 September.
• Kenya’s September inflation release and the Central Bank of Kenya’s early-October policy decision.
• Oil-market signals from US-Iran negotiations and any evidence of restored shipping flows through the Strait of Hormuz.
• Whether Nigeria’s lower policy rate transmits into market rates without reversing progress on inflation and currency stability.