Overview
The table below lists the most recent polls (less than 90 days old) registered and analyzed so far.
| Period | Polling firm/Commissioner(s) | PSD | CDS–PP | PS | BE | CDU | PAN | L | IL | A | CH | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 October 2015 | General Election | 36.9%  89  | 
      36.9%  18  | 
      32.3%  86  | 
      10.2%  19  | 
      8.2%  17  | 
      1.4%  1  | 
      0.7%  0  | 
      0.0%  0  | 
      0.0%  0  | 
      0.0%  0  | 
    
| N/A | Poll Average | 24–31%  67–87  | 
      4–6%  4–10  | 
      33–41%  97–117  | 
      8–12%  15–25  | 
      5–9%  7–19  | 
      2–7%  3–12  | 
      0–2%  0–1  | 
      0–2%  0  | 
      0–2%  0–1  | 
      0–3%  0–2  | 
    
| 30 September–3 October 2019 | Pitagórica  Jornal de Notícias  | 
      24–31%  65–93  | 
      3–7%  2–12  | 
      33–41%  92–118  | 
      7–12%  12–25  | 
      5–9%  6–18  | 
      3–7%  4–13  | 
      0–2%  0–1  | 
      0–2%  0–2  | 
      1–2%  0–2  | 
      1–3%  0–2  | 
    
| 26 September–2 October 2019 | Aximage  Jornal Económico  | 
      25–29%  72–82  | 
      4–6%  6–8  | 
      34–39%  101–112  | 
      9–12%  19–25  | 
      6–8%  8–15  | 
      3–5%  3–6  | 
      1–2%  0–1  | 
      1–2%  0  | 
      N/A  N/A  | 
      1–2%  0  | 
    
| 26 September–1 October 2019 | Intercampus  Correio da Manhã and Negócios  | 
      23–29%  67–84  | 
      3–6%  3–10  | 
      32–38%  95–113  | 
      7–11%  14–23  | 
      6–10%  13–21  | 
      4–7%  6–14  | 
      N/A  N/A  | 
      N/A  N/A  | 
      N/A  N/A  | 
      N/A  N/A  | 
    
| 25 September–1 October 2019 | Eurosondagem  Porto Canal  | 
      24–27%  66–77  | 
      4–6%  6–9  | 
      37–41%  107–118  | 
      8–11%  17–24  | 
      6–8%  10–17  | 
      3–5%  4–6  | 
      N/A  N/A  | 
      N/A  N/A  | 
      N/A  N/A  | 
      N/A  N/A  | 
    
| 23–29 September 2019 | GfK Metris  Expresso and SIC Notícias  | 
      26–31%  71–85  | 
      4–6%  4–10  | 
      36–41%  101–117  | 
      9–12%  18–24  | 
      5–8%  6–15  | 
      2–4%  2–6  | 
      0–1%  0–1  | 
      0–1%  0  | 
      0–1%  0  | 
      0–1%  0  | 
    
| 26–29 September 2019 | CESOP–UCP  Público and RTP  | 
      28–31%  78–89  | 
      4–6%  6–8  | 
      35–38%  100–112  | 
      9–11%  18–24  | 
      5–7%  6–13  | 
      2–4%  2–4  | 
      1%  0–1  | 
      1%  0  | 
      1%  0  | 
      1%  0  | 
    
| 4 October 2015 | General Election | 36.9%  89  | 
      36.9%  18  | 
      32.3%  86  | 
      10.2%  19  | 
      8.2%  17  | 
      1.4%  1  | 
      0.7%  0  | 
      0.0%  0  | 
      0.0%  0  | 
      0.0%  0  | 
    
Only polls for which at least the sample size has been published are included in the table above.
Legend:
- Top half of each row: Voting intentions (95% confidence interval)
 - Bottom half of each row: Seat projections for the Assembleia da República (95% confidence interval)
 - PSD: Partido Social Democrata
 - CDS–PP: CDS–Partido Popular
 - PS: Partido Socialista
 - BE: Bloco de Esquerda
 - CDU: Coligação Democrática Unitária
 - PAN: Pessoas–Animais–Natureza
 - L: LIVRE
 - IL: Iniciativa Liberal
 - A: Aliança
 - CH: Chega
 - N/A (single party): Party not included the published results
 - N/A (entire row): Calculation for this opinion poll not started yet
 


