CIS barometer
CIS poll of December 5, 2025
In the CIS poll (fieldwork December 1, 2025 to December 5, 2025, 4,017 interviews), the list with the most votes is PSOE, on 31.4 % of the vote. Next comes PP, on 22.4 %. Compared with this pollster's previous poll (November 12, 2025), PSOE moved by −1.2 points. In our average that day, PSOE stood at 27.9 %.
- Pollster
- CIS
- Commissioned by
- n/a
- Fieldwork
- 1-5 Dec
- Sample
- 4,017
CIS barometers and their re-estimates are not part of our average: they are shown separately.
Estimate by party
| Party | Vote | Vs. previous | Vs. average |
|---|---|---|---|
| PSOE | 31.4 % | −1.2 | +3.5 |
| PP | 22.4 % | 0.0 | −9.6 |
| Vox | 17.6 % | −1.2 | −0.4 |
| Sumar | 7.8 % | +0.7 | +1.8 |
| Podemos | 4.1 % | +0.1 | +0.1 |
| SALF | 2.4 % | +1.8 | +0.8 |
| ERC | 2.1 % | −0.1 | +0.3 |
| EH Bildu | 1.5 % | +0.3 | +0.2 |
| PNV | 0.9 % | +0.2 | −0.2 |
| Junts | 0.8 % | −0.3 | −0.6 |
| BNG | 0.8 % | −0.3 | −0.1 |
| Aliança.cat | 0.5 % | · | −0.2 |
| CC | 0.2 % | 0.0 | −0.2 |
| UPN | 0.1 % | 0.0 | −0.1 |
Vs. previous: change in points from the same pollster's poll of November 12, 2025. Vs. average: difference from our weighted average of December 5, 2025.
Figures from the poll table on Wikipedia (CC BY-SA 4.0). Original publication: CIS.
How to cite: Su Momento, “CIS poll of December 5, 2025”, December 5, 2025, https://sumomento.com/en/encuestas/cis-2025-12-05