Key topics:African central banks turn hawkish as Iran war drives inflation costsSouth Africa and Rwanda seen hiking rates while others hold or cutFuel-price spikes fuel inflation, pressuring budgets and protests.By Monique Vanek.South Africa is poised to join a handful of central banks in raising interest rates to contain the inflationary fallout from the Iran war in coming weeks, even as most peers keep borrowing costs on hold.The conflict that erupted in late February has driven up energy, food and fertilizer costs due to the blockade of the Strait of Hormuz — a key shipping route for about a fifth of the world’s seaborne oil and liquefied natural gas, and a significant portion of crop nutrients.A number of African nations have raised fuel prices, with some deploying subsidies and suspending taxes to soften the blow. The higher costs and knock-on effects have forced policymakers to rethink extending their easing cycles that looked likely just months ago, with the possibility of rates remaining higher for longer..Read more:.Goldman warns Iran war could push oil and force rand rate hike.“All of Africa’s central banks are having to make a big shift on policy,” said Charlie Robertson, chief economic adviser at Equity Group Holdings Plc. “Across the continent nearly all central banks will at best be on hold in coming months, but hikes will become commonplace unless Hormuz is re-opened.”.Policy will likely remain restrictive, with further tightening contingent on a more pronounced inflation impulse, although fragile economic growth across several economies will constrain the ability to tighten aggressively, according to Angelika Goliger, EY Africa’s chief economist.For a calendar of forthcoming interest-rate decisions in Africa, click here. The wave of interest-rate decisions will start with Ghana, Mauritius and Nigeria on Wednesday, followed by Egypt and Rwanda on Thursday.Ghana’s policymakers are expected to join a small group of African nations, including Zambia and Angola, in cutting interest rates. Inflation, while edging higher in the West African nation, remains subdued at 3.4% and borrowing costs are restrictive at 14%. The central bank is forecast to lower the benchmark rate by 50 basis points, extending an easing cycle that began in July.Monetary policy committees in Mauritius, Nigeria and Egypt are all set to stand pat. Policymakers in Mauritius and Nigeria, who are meeting for the first time since the conflict began, will likely seek to gain greater clarity on its impact, with price pressures already intensifying. .Read more:.SARB to "respond" (ie raise rates) if Iran war inflation risk persists.Egypt is also set to remain cautious as currency weakness and administered-price adjustments reinforce inflationary risks and limit the scope for easing, Goliger said.Rwanda and — a week later — South Africa will likely raise interest rates. Botswana is so far the only African nation to do so since the war began.Price growth in Rwanda has returned to double digits for the first time in almost three years, pushing the gap between the benchmark interest rate and annual inflation to negative 5.75 percentage points.South Africa is predicted to raise interest rates by 25 basis points to 7%. An increase would be the first since May 2023. “The balance of risks has shifted towards a more hawkish direction, with easing effectively off the table and the possibility of an increase in the policy rate in 2026 should inflation pressures intensify,” Goliger said.Inflation is forecast to surge above the central bank’s 3% target in April and May because of higher fuel prices. .Read more:.The blind cost of administered fuel prices: Ivo Vegter.The rates call in Africa’s largest economy will weigh on neighboring Eswatini and Lesotho, whose currencies are pegged to the rand and are set to announce their own decisions a day later. Mozambique will deliver its rate decision next week and Kenya, on June 9, and both are expected to remain on hold. The two nations are net fuel importers and have seen inflation quicken because of higher energy costs, which have sparked protests in Kenya and further strained Mozambique’s budget..© 2026 Bloomberg L.P..Sign up for your early morning brew of the BizNews Insider to keep you up to speed with the content that matters. The newsletter will land in your inbox every morning on weekdays. Register here.Support South Africa's bastion of independent journalism, offering balanced insights on investments, business, and the political economy, by joining BizNews Premium. Register here.If you prefer WhatsApp for updates, sign up to the BizNews channel here.