Historical Exchange Rates
STN to SLE Historical Exchange Rates
Review date-based historical exchange-rate data for São Tomé and Príncipe Dobra and Sierra Leonean Leone. This page is designed for historical lookup, not current conversion.
Showing the 1Y range. Providers may omit weekends, holidays or dates without published data.
Data source: Frankfurter | Rate date:
Historical Chart
STN/SLE range data
1 STN = 1.119418 SLE on
Monthly and annual reference summary
Calculated from available daily provider observations for 2026-07 and 2026.
| Date | Rate |
|---|---|
| 2026-07-08 | 1 STN = 1.124207 SLE |
| 2026-07-09 | 1 STN = 1.125963 SLE |
| 2026-07-10 | 1 STN = 1.12552 SLE |
| 2026-07-13 | 1 STN = 1.126318 SLE |
| 2026-07-14 | 1 STN = 1.125829 SLE |
| 2026-07-15 | 1 STN = 1.125469 SLE |
| 2026-07-16 | 1 STN = 1.128522 SLE |
| 2026-07-17 | 1 STN = 1.126576 SLE |
| 2026-07-20 | 1 STN = 1.12693 SLE |
| 2026-07-21 | 1 STN = 1.126343 SLE |
| 2026-07-22 | 1 STN = 1.124571 SLE |
| 2026-07-23 | 1 STN = 1.123004 SLE |
| 2026-07-24 | 1 STN = 1.121446 SLE |
| 2026-07-27 | 1 STN = 1.122029 SLE |
| 2026-07-28 | 1 STN = 1.119418 SLE |
Historical trend summary
Observed changes in STN/SLE
Across 255 provider observations from to , STN/SLE finished above its first observation. The observed change was +3.51%.
The lowest observed rate was 1 STN = 1.03492 SLE on . The highest was 1 STN = 1.182174 SLE on . These statements describe the selected data only and are not a forecast.
Historical Context
Understanding STN/SLE historical data
STN/SLE records how many sierra leonean leone units one são tomé and príncipe dobra represented at each provider publication. Both currencies are associated with Africa, but they remain separate monetary units with their own issuing and policy arrangements. The series can support dated price comparisons, cross-currency records and research into how the relationship changed over the selected period.
Observed movement can reflect relative inflation, economic activity, monetary-policy conditions, trade and demand for the two currencies. The documented exchange-rate arrangements also provide context: Fixed relationship with the euro; Market-based exchange-rate framework. These are historical reference observations, not intraday transaction prices, forecasts or evidence that a single factor caused a particular change.
Exchange-rate information is provided for reference only and is not financial, trading or investment advice.
Source and calculation method
CurrencyHub preserves the requested date separately from the actual provider publication date. Monthly and annual averages are arithmetic means of available daily observations, and the month-end value is the final published observation in that calendar month. No missing weekend or holiday rate is invented or interpolated. Review the policy that applies to any accounting, tax or legal use.
Data interpretation note
These observations are reference rates for comparison and research, not bank execution prices. A requested weekend or holiday may have no publication because the provider follows its own release calendar; CurrencyHub identifies the actual published date instead of inventing or interpolating a value. Banks and payment services can use different processing dates, spreads and fees.