USD to PLN in September 2026
Average: 3.7627 PLN
In September 2026 the ECB published 19 reference rates for USD/PLN. The average was 3.7627 PLN per USD, the low 3.7035 on September 9, 2026 and the high 3.8553 on September 24, 2026. From the first to the last day of the month the rate moved from 3.7371 to 3.8339 (+2.59%).
High 3.8553 PLN (September 24, 2026) Low 3.7035 PLN (September 9, 2026)
| Average | 3.7627 |
|---|---|
| Low | 3.7035 (September 9, 2026) |
| High | 3.8553 (September 24, 2026) |
| Open | 3.7371 |
| Close | 3.8339 |
| Change | +2.59% |
| Days | 19 |
September 2026
| Date | 1 USD | Change | 1 PLN |
|---|---|---|---|
| September 1, 2026 | 3.7371 | +0.13% | 0.26759 |
| September 2, 2026 | 3.7368 | -0.01% | 0.26761 |
| September 3, 2026 | 3.7249 | -0.32% | 0.26846 |
| September 4, 2026 | 3.7126 | -0.33% | 0.26935 |
| September 7, 2026 | 3.7087 | -0.10% | 0.26963 |
| September 8, 2026 | 3.7178 | +0.24% | 0.26898 |
| September 9, 2026 | 3.7035 | -0.38% | 0.27002 |
| September 10, 2026 | 3.7207 | +0.47% | 0.26876 |
| September 11, 2026 | 3.7310 | +0.28% | 0.26802 |
| September 14, 2026 | 3.7588 | +0.74% | 0.26604 |
| September 15, 2026 | 3.7612 | +0.06% | 0.26588 |
| September 16, 2026 | 3.7681 | +0.19% | 0.26538 |
| September 17, 2026 | 3.7958 | +0.74% | 0.26345 |
| September 18, 2026 | 3.8076 | +0.31% | 0.26263 |
| September 21, 2026 | 3.7885 | -0.50% | 0.26396 |
| September 22, 2026 | 3.7931 | +0.12% | 0.26364 |
| September 23, 2026 | 3.8353 | +1.11% | 0.26073 |
| September 24, 2026 | 3.8553 | +0.52% | 0.25938 |
| September 25, 2026 | 3.8339 | -0.55% | 0.26083 |
The ECB publishes euro reference rates around 16:00 CET on TARGET business days. Cross rates between two non-euro currencies are calculated from their euro rates. Reference rates serve for information; a bank or card issuer applies its own rate.
Rate alerts and API: join the waitlist
Get an email when a pair crosses your level, and a JSON API for rates, IBAN and BIC. Leave your email and we will write when it opens.