When I Need You by Leo Sayer first appeared on the Israeli foreign-music chart on 20 Feb 1977, entering at #13. It peaked at #1 on 13 Mar 1977, holding the top spot for 3 weeks. In total it spent 12 weeks on the chart, last charting on 22 May 1977. It also made the year-end chart: #6 of 1977.
| Wk | Date | Pos |
|---|---|---|
| 1 | 20 Feb 1977 | 13 |
| 2 | 6 Mar 1977 | 3 |
| 3 | 13 Mar 1977 | 1 |
| 4 | 20 Mar 1977 | 1 |
| 5 | 27 Mar 1977 | 1 |
| 6 | 10 Apr 1977 | 2 |
| 7 | 17 Apr 1977 | 2 |
| 8 | 24 Apr 1977 | 3 |
| 9 | 1 May 1977 | 7 |
| 10 | 8 May 1977 | 11 |
| 11 | 15 May 1977 | 18 |
| 12 | 22 May 1977 | 28 |