Money struggles: 10 weakest currencies in Africa based on rates in August 2026

This story has significance for readers across Kenya and beyond.

- São Tomé and Príncipe's dobra and Sierra Leone's leone both require over 22,000 units to buy a single US dollar

- Four East African currencies, Uganda, Burundi, Tanzania and Rwanda, feature among the continent's weakest in August 2026

- Weak currencies are driving up import costs, inflating external debt burdens, and eroding household purchasing power across Africa

Elijah Ntongai is an experienced editor at TUKO.co.ke, with more than four years in financial, business, labour and technology research and reporting. His work provides valuable insights into Kenyan, African, and global trends.

Six African countries now require more than 2,000 units of their local currency to purchase a single US dollar, according to exchange rate data compiled from central banks and real-time tracking platforms.

São Tomé and Príncipe's dobra leads the list as Africa's weakest currency in August 2026, trading at approximately 22,282 to the dollar, followed closely by Sierra Leone's leone at roughly 22,875.

Why African Currencies Remain Under Pressure

The US dollar's dominance as the world's primary reserve currency creates a structural vulnerability for African economies.

Daniel Kathali, an economist, explained that because oil, food commodities, and manufactured goods are priced in dollars, nations that rely heavily on imports must continuously source foreign exchange to finance essential purchases. When export revenues fall short, currencies come under sustained pressure.

"Currency weakness carries compounding economic consequences. As local currencies lose value against the dollar, the price of imported goods rises sharply, pushing up inflation and eroding household purchasing power. Lower-income families, who spend a disproportionately large share of their earnings on food, fuel, and basic necessities, bear the greatest burden.

Additionally, governments with dollar-denominated loans must purchase foreign currency to meet repayment obligations, which places additional downward pressure on their own currencies.

"The resulting cycle can become self-reinforcing: a weaker currency drives higher import costs, which fuel inflation, which in turn erodes the currency's value further."

Currency volatility discourages both foreign and domestic investment, reducing the flow of capital that smaller African economies need to finance development.

The 10 Weakest African Currencies in August 2026

Based on exchange rate data from the Forbes currency calculator, here are the 10 weakest currencies in Africa as of August 2026:

Rank | Country | Currency | Exchange Rate (per USD) |

1 | São Tomé and Príncipe | Dobra (STN) | 22,282 |

2 | Sierra Leone | Leone (SLE) | 20,969 |

3 | Guinea | Guinean Franc (GNF) | 8,785 |

4 | Madagascar | Malagasy Ariary (MGA) | 4,307 |

5 | Uganda | Ugandan Shilling (UGX) | 3,730 |

6 | Burundi | Burundian Franc (BIF) | 2,988 |

7 | Tanzania | Tanzanian Shilling (TZS) | 2,648 |

8 | Democratic Republic of Congo | Congolese Franc (CDF) | 2,292 |

9 | Malawi | Malawian Kwacha (MWK) | 1,734 |

10 | Rwanda | Rwandan Franc (RWF) | 1,473 |

Reversing these trends requires disciplined monetary policy, fiscal prudence, and structural economic reforms. Without these foundations, currency depreciation tends to persist and deepen rather than correct itself.

Source: TUKO.co.ke

Reporting originally appeared via TUKO. Read the full source for additional context.