| City | Country | School | Latitude (°) +N/-S | Longitude (°) +E/-W |
| Montcuq | France | Fondation La main à la pâte | 44.340 | 1.210 |
| Date | Gnomon height [cm] | Shadow length [cm] | Angle (°) |
| 01/05/2025 | 25.0 | 13.8 | 28.9 |
| 02/05/2025 | 25.0 | 13.6 | 28.5 |
| 07/05/2025 | 25.0 | 12.8 | 27.1 |
| 08/05/2025 | 25.0 | 12.6 | 26.7 |
| 09/05/2025 | 25.0 | 12.5 | 26.6 |
| 12/05/2025 | 25.0 | 12.1 | 25.8 |
| 14/05/2025 | 25.0 | 11.8 | 25.3 |
| 15/05/2025 | 25.0 | 11.7 | 25.1 |
| 16/05/2025 | 25.0 | 11.6 | 24.9 |
| 19/05/2025 | 25.0 | 11.2 | 24.1 |
| 20/05/2025 | 25.0 | 11.1 | 23.9 |
| 21/05/2025 | 25.0 | 11.0 | 23.7 |
| 22/05/2025 | 25.0 | 10.9 | 23.6 |
| 24/05/2025 | 25.0 | 10.7 | 23.2 |
| 26/05/2025 | 25.0 | 10.6 | 23.0 |
| 27/05/2025 | 25.0 | 10.5 | 22.8 |
| 28/05/2025 | 25.0 | 10.4 | 22.6 |
| 29/05/2025 | 25.0 | 10.3 | 22.4 |