Historical Exchange Rates
YER to STN Historical Exchange Rates
Review date-based historical exchange-rate data for Yemeni Rial and São Tomé and Príncipe Dobra. This page is designed for historical lookup, not current conversion.
Showing the 30D range. Providers may omit weekends, holidays or dates without published data.
Data source: Frankfurter | Rate date:
Historical Chart
YER/STN range data
1 YER = 0.09059169 STN on
Monthly and annual reference summary
Calculated from available daily provider observations for 2026-07 and 2026.
| Date | Rate |
|---|---|
| 2026-07-08 | 1 YER = 0.09046521 STN |
| 2026-07-09 | 1 YER = 0.09034775 STN |
| 2026-07-10 | 1 YER = 0.09048635 STN |
| 2026-07-13 | 1 YER = 0.09022131 STN |
| 2026-07-14 | 1 YER = 0.09032353 STN |
| 2026-07-15 | 1 YER = 0.09046122 STN |
| 2026-07-16 | 1 YER = 0.09017047 STN |
| 2026-07-17 | 1 YER = 0.09035231 STN |
| 2026-07-20 | 1 YER = 0.09013872 STN |
| 2026-07-21 | 1 YER = 0.09011528 STN |
| 2026-07-22 | 1 YER = 0.09049975 STN |
| 2026-07-23 | 1 YER = 0.09057023 STN |
| 2026-07-24 | 1 YER = 0.09073025 STN |
| 2026-07-27 | 1 YER = 0.09049059 STN |
| 2026-07-28 | 1 YER = 0.09059169 STN |
Historical trend summary
Observed changes in YER/STN
Across 22 provider observations from to , YER/STN finished above its first observation. The observed change was +0.27%.
The lowest observed rate was 1 YER = 0.09006923 STN on . The highest was 1 YER = 0.09073025 STN on . These statements describe the selected data only and are not a forecast.
Historical Context
Understanding YER/STN historical data
YER/STN records how many são tomé and príncipe dobra units one yemeni rial represented at each provider publication. Yemeni Rial is associated with Yemen, while São Tomé and Príncipe Dobra is associated with São Tomé and Príncipe. 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: YER is the national monetary unit, while conflict-related institutional and regional conditions can affect accessible exchange quotations.; Fixed relationship with the euro. These are historical reference observations, not intraday transaction prices, forecasts or evidence that a single factor caused a particular change.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.