Say It Isn't So by Hall & Oates first appeared on the Israeli foreign-music chart on 5 Dec 1983, entering at #28. It peaked at #26 on 12 Dec 1983. In total it spent 5 weeks on the chart, last charting on 2 Jan 1984.
| Wk | Date | Pos |
|---|---|---|
| 1 | 5 Dec 1983 | 28 |
| 2 | 12 Dec 1983 | 26 |
| 3 | 19 Dec 1983 | 26 |
| 4 | 26 Dec 1983 | 32 |
| 5 | 2 Jan 1984 | 37 |