In the run up to the 2026 Portuguese presidential election, various organisations will carry out opinion polling to gauge voting intention in Portugal. Results of such polls are displayed in this article.

Poll results are listed in the table below in reverse chronological order, showing the most recent first. The highest percentage figure in each polling survey is displayed in bold, and the background shaded in the leading candidate colour. In the instance that there is a tie, then no figure is shaded but both are displayed in bold. If no candidate gets the required majority in a survey, the second place gets highlighted with a lighter color. Poll results use the date the survey's fieldwork was done, as opposed to the date of publication.

Candidates vote

First round

Graphical summary

Polling Polls that show their results without distributing those respondents who are undecided or said they would abstain from voting, are re-calculated by removing these numbers from the totals through a simple rule of three, in order to obtain results comparable to other polls and the official election results.

Polling firmFieldwork dateSamplesize Lead First round18 Jan 2026 12.311.331.123.516.02.11.60.70.21.10.17.6 CESOP–UCP 18 Jan 2026 31,22111–148–1130–3520–2417–211–31–30–10–11–20–110–11 ICS/ISCTE/Pitagórica 18 Jan 2026 28,5229.2–12.49.1–12.330.8–35.219.9–24.116.3–20.10.9–2.70.4–2.00.7–2.310.9–11.1 Intercampus 18 Jan 2026 18,41110.9–14.98.3–12.329.6–33.621.0–25.013.9–17.90.8–3.80.6–2.60.0–1.70.4–2.48.6Pitagórica13–15 Jan 2026 1,20011.611.525.123.022.32.22.41.20.60.12.1Pitagórica12–14 Jan 2026 90313.412.624.222.921.11.81.61.31.00.11.3Pitagórica11–13 Jan 2026 75515.413.422.622.020.32.41.41.31.00.20.6Intercampus6–13 Jan 202680615.419.015.623.117.83.22.12.41.54.1Consulmark25–13 Jan 202699314.417.820.718.918.53.01.41.21.03.21.8Pitagórica10–12 Jan 202660815.213.223.920.520.82.51.41.31.00.23.1Aximage9–12 Jan 202660613.614.923.024.714.92.42.01.53.01.7Pitagórica9–11 Jan 202660816.314.022.919.721.12.41.11.11.10.31.8Pitagórica8–10 Jan 202660817.014.521.419.721.12.62.00.90.70.10.3CESOP–UCP6–9 Jan 20251,7701414232419221.5<1<1<11Pitagórica7–9 Jan 202660817.415.720.819.820.12.71.80.80.60.30.7Pitagórica6–8 Jan 202660817.216.819.720.519.23.02.30.70.30.30.8Pitagórica5–7 Jan 202660817.816.720.120.518.13.02.40.80.40.30.4Pitagórica4–6 Jan 202660817.216.021.019.618.03.32.70.71.00.51.4Aximage1–6 Jan 202680017.318.316.824.614.43.31.71.22.46.3Pitagórica3–5 Jan 202660818.315.120.718.418.32.93.51.31.30.22.3Pitagórica2–4 Jan 202660819.215.419.318.918.02.92.81.81.50.20.1Pitagórica11–19 Dec 20251,00015.020.719.919.114.92.73.03.01.10.60.8Intercampus12–16 Dec 202561113.419.114.521.115.47.24.44.92.0ICS/ISCTE5–13 Dec 2025903202014221053152CESOP–UCP4–12 Dec 20251,18518201622143320.51.52Aximage28 Nov–3 Dec 202560719.620.410.721.411.76.63.22.14.31.0Consulmark219–28 Nov 202579516.622.016.916.415.92.62.50.86.35.1Intercampus14–19 Nov 202561119.420.513.919.914.45.44.72.00.6Aximage10–17 Nov 202581620.917.816.621.610.64.42.31.74.10.7ICS/ISCTE7–17 Nov 202580726231425522<131Pitagórica5–14 Nov 20251,00021.122.617.414.712.64.42.51.43.31.5Aximage23–27 Oct 202565124.4 19.215.719.28.25.02.70.94.65.2Intercampus20–26 Oct 202560919.220.715.419.710.58.95.71.0Pitagórica6–10 Oct 202562526.920.318.413.99.11.92.52.90.23.96.6Intercampus1–8 Oct 202580224.021.911.321.211.06.54.12.1Intercampus7–14 Aug 202561122.819.816.917.410.75.82.54.13.0ICS/ISCTE28 Jun–10 Aug 20252,0173222172276Aximage11–21 Jul 20251,00037272016103225175217Intercampus11–18 Jul 202560624.820.719.812.78.24.34.64.94.1Intercampus5–15 Jun 2025616 35.624.114.310.92.34.83.14.911.4Consulmark26–13 May 202558935.621.26.99.62.24.72.217.614.4Consulmark214–22 Apr 202556936.721.48.08.21.44.91.418.015.3Consulmark227 Mar–3 Apr 2025583 46.121.510.15.61.14.50.610.524.6CESOP–UCP17–26 Mar 20251,206 3719793421918Intercampus4–10 Mar 2025638 44.817.59.715.65.07.427.3Pitagórica23–27 Feb 202540035.925.514.112.92.51.80.66.410.432.224.812.12.21.90.726.17.4Aximage23–28 Jan 2025800 351410142720Intercampus21–26 Jan 2025638 40.717.310.211.66.03.710.523.4ICS/ISCTE9–20 Jan 2025805 331720211111512 33172113112312 32172113112410

Polling firmFieldwork dateSamplesize /Lead Intercampus 21–27 Nov 2024 605 23.2 13.9 9.8 4.0 6.6 0.9 5.1 3.2 3.2 4.7 6.4 1.3 2.4 15.3 9.3 Aximage 6–19 Sep 2024 818 21.0 14.7 10.6 5.0 8.8 7.9 8.3 23.7 6.3 Intercampus 19–26 Jul 2024 609 9.4 14.1 4.6 8.1 8.4 11.4 1.5 5.7 4.8 19.3 4.6 2.4 5.7 5.2 Duplimétrica 6–13 May 2024 800 10 1713 5 7 2 5 3 513 5 15 4 Intercampus 18–23 Apr 2024 605 8.4 14.7 12.5 2.7 5.7 5.9 7.7 1.3 5.3 2.7 2.913.6 2.9 1.3 3.5 9.0 1.1 Intercampus 9–14 Sep 2023 614 7.8 8.8 15.8 3.9 6.0 5.5 1.5 9.0 2.0 3.4 3.3 3.1 14.8 3.9 2.0 9.3 1.0 Intercampus 3–6 Jul 2023 623 7.9 14.3 13.3 3.2 3.0 6.9 1.4 11.4 0.8 5.9 3.2 15.1 2.7 2.6 1.9 6.3 0.8 Intercampus 3–10 Feb 2023 602 10.0 10.6 15.8 3.8 4.3 3.8 9.5 6.0 3.8 4.0 13.5 14.9 2.3 Intercampus 15–20 Nov 2022 605 15.9 9.6 15.2 6.3 7.3 4.0 5.8 6.1 3.3 8.6 2.1 15.8 0.7 Intercampus 6–11 Jul 2022 605 31.7 10.9 10.4 7.8 7.8 6.1 3.0 22.3 20.8 18.3 17.4 12.7 12.2 4.5 34.9 0.9 31.1 13.6 16.2 7.8 4.0 27.4 14.9 23.1 16.5 12.9 12.4 4.5 30.6 6.6

Second round Poll results are shown in the table below in reverse chronological order, showing the most recent first.

Polling firmFieldwork dateSamplesizeSeguroVentura /Lead Second round8 Feb 2026 66.8 33.233.6 CESOP–UCP 8 Feb 202640,52668–7327–3236–46 ICS/ISCTE/Pitagórica 8 Feb 202626,58467.0–71.428.6–33.034.0–42.8 Intercampus 8 Feb 202612,66566.8–71.828.2–33.233.6–43.6Pitagórica3–5 Feb 202681067.832.235.681056.726.916.429.8Pitagórica2–4 Feb 202660853.528.018.525.5Pitagórica1–3 Feb 202660853.229.517.323.7Pitagórica31 Jan–2 Feb 202660852.828.119.124.7CESOP–UCP29 Jan–2 Feb 20261,6016733341,60156251931Aximage29 Jan–2 Feb 202660765.430.34.435.1Pitagórica30 Jan–1 Feb 2026 60853.627.918.525.7Pitagórica29–31 Jan 2026 60856.228.415.427.8Pitagórica28–30 Jan 2026 60857.327.215.530.1Pitagórica27–29 Jan 2026 60857.827.314.930.5Pitagórica26–28 Jan 2026 60859.028.013.031.0Pitagórica25–27 Jan 2026 60861.926.211.935.7Pitagórica24–26 Jan 2026 60860.926.512.634.4Aximage21–26 Jan 202680064.630.84.633.8 ICS/ISCTE 20–25 Jan 202690266343290251272224 CESOP–UCP 20–21 Jan 20261,102703040 1,10261271234Intercampus19–21 Jan 202660960.824.514.836.3Pitagórica13–15 Jan 20261,2006627739Pitagórica12–14 Jan 20269036726741Pitagórica11–13 Jan 20267556625941Intercampus6–13 Jan 202680657.132.410.524.7Consulmark25–13 Jan 202699360.525.613.934.9Aximage9–12 Jan 202660649292220Aximage1–6 Jan 202680042302812Pitagórica11–19 Dec 20251,00065231242Intercampus12–16 Dec 202561152.233.614.218.6 ICS/ISCTE 5–13 Dec 2025 90345243121 CESOP–UCP 4–12 Dec 2025 1,1856629537 Consulmark2 19–28 Nov 2025 79560.121.418.538.7 Intercampus 14–19 Nov 2025 61153.028.518.524.5 ICS/ISCTE 7–17 Nov 2025 80742253317 Pitagórica 5–14 Nov 2025 1,00067211246 Aximage 23–27 Oct 2025 65156261830 Intercampus 20–26 Oct 2025 60958.529.911.628.6 Pitagórica 6–10 Oct 2025 62561211840 Intercampus 1–8 Oct 2025 80254.929.815.325.1 Intercampus 7–14 Aug 2025 61152.0 29.5 18.522.5 Pitagórica 23–27 Feb 2025 40065181747

Other scenarios Poll results showing how people would vote on hypothetical second round matchups, are shown in the table below in reverse chronological order, showing the most recent first Polling firmFieldwork dateSamplesizeGouveia e MeloMarques Mendes /Lead Pitagórica13–15 Jan 20261,2004442142Pitagórica12–14 Jan 20269034542133Pitagórica11–13 Jan 20267554442142Intercampus6–13 Jan 202680637.738.823.41.1Consulmark25–13 Jan 202699340.140.919.00.8Aximage1–6 Jan 20268003330373Pitagórica11–19 Dec 20251,00034471913Intercampus12–16 Dec 202561136.741.721.65.0 ICS/ISCTE 5–13 Dec 2025 9033135344 CESOP–UCP 4–12 Dec 2025 1,185425088 Consulmark2 19–28 Nov 2025 79534.046.020.012.0 Intercampus 14–19 Nov 2025 61136.737.525.80.8 ICS/ISCTE 7–17 Nov 2025 80735 31 344 Pitagórica 5–14 Nov 2025 1,0003946157 Aximage 23–27 Oct 2025 65138 36262 Intercampus 20–26 Oct 2025 60937.341.521.24.2 Pitagórica 6–10 Oct 2025 6254237215 Intercampus 1–8 Oct 2025 80240.639.320.11.3 Intercampus 7–14 Aug 2025 61139.838.521.81.3 Aximage 11–21 Jul 2025 1,0004136235 Intercampus 11–18 Jul 2025 60640.439.620.00.8 Intercampus 5–15 Jun 2025 61641.135.423.55.7 Intercampus 4–10 Mar 2025 63851.628.519.923.1 Pitagórica 23–27 Feb 2025 40049371412 Intercampus 21–26 Jan 2025 63852.529.318.223.2 ICS/ISCTE 9–20 Jan 2025 80543203723 Pitagórica 28 Dec 2024–5 Jan 2025 40051301921Intercampus21–27 Nov 202460549.330.320.319.0Aximage6–19 Sep 202481847282519Intercampus19–26 Jul 202460948.840.211.08.6

Polling firmFieldwork dateSamplesizeGouveia e MeloSeguro /Lead Pitagórica13–15 Jan 20261,20030561426Pitagórica12–14 Jan 202690334551121Pitagórica11–13 Jan 202675532551323Intercampus6–13 Jan 202680639.1 38.0 23.01.1Consulmark25–13 Jan 202699333.650.815.617.2Aximage9–12 Jan 202660625433218Aximage1–6 Jan 20268003131 38TiePitagórica11–19 Dec 20251,00034481814Intercampus12–16 Dec 202561137.338.524.21.2 ICS/ISCTE 5–13 Dec 2025 90336 26 3810 CESOP–UCP 4–12 Dec 2025 1,185444975 Consulmark2 19–28 Nov 2025 79536.044.519.58.5 Intercampus 14–19 Nov 2025 61137.2 34.7 28.12.5 ICS/ISCTE 7–17 Nov 2025 80741 24 3517 Pitagórica 5–14 Nov 2025 1,0003943184 Aximage 23–27 Oct 2025 6514035255 Intercampus 20–26 Oct 2025 60942.038.919.13.1 Pitagórica 6–10 Oct 2025 6254437197 Intercampus 1–8 Oct 2025 80248.832.219.116.6 Intercampus 7–14 Aug 2025 61142.234.723.17.5 Aximage 11–21 Jul 2025 1,0004236226 Intercampus 11–18 Jul 2025 60641.638.120.33.5 Intercampus 5–15 Jun 2025 61644.532.323.212.2 Intercampus 4–10 Mar 2025 63854.524.521.030.0 Pitagórica 23–27 Feb 2025 40051321719 Intercampus 21–26 Jan 2025 63855.224.919.930.3 ICS/ISCTE 9–20 Jan 2025 80545163929 Pitagórica 28 Dec 2024–5 Jan 2025 40054262028

Polling firmFieldwork dateSamplesizeGouveia e MeloVentura /Lead Pitagórica13–15 Jan 20261,20060261434Pitagórica12–14 Jan 202690362251337Pitagórica11–13 Jan 202675563241339Intercampus6–13 Jan 202680656.5 29.8 13.826.7Consulmark25–13 Jan 202699360.225.814.034.4Aximage9–12 Jan 202660643282915Aximage1–6 Jan 202680044282816Pitagórica11–19 Dec 20251,00062211741Intercampus12–16 Dec 202561152.530.017.522.5 ICS/ISCTE 5–13 Dec 2025 90347242923 CESOP–UCP 4–12 Dec 2025 1,1856825743 Consulmark2 19–28 Nov 2025 79563.419.517.143.9 Intercampus 14–19 Nov 2025 61154.025.720.328.3 ICS/ISCTE 7–17 Nov 2025 80749 23 2826 Pitagórica 5–14 Nov 2025 1,00068181450 Aximage 23–27 Oct 2025 65154252129 Intercampus 20–26 Oct 2025 60961.229.49.431.8 Pitagórica 6–10 Oct 2025 62563152248 Intercampus 1–8 Oct 2025 80260.325.614.134.7 Intercampus 7–14 Aug 2025 61156.625.917.530.7 Intercampus 11–18 Jul 2025 60663.419.117.544.3 Pitagórica 23–27 Feb 2025 40071131658 ICS/ISCTE 9–20 Jan 2025 80553163129 Polling firmFieldwork dateSamplesizeGouveia e MeloCotrim /Lead Pitagórica13–15 Jan 20261,20036501416Pitagórica12–14 Jan 20269033853915Pitagórica11–13 Jan 202675539511012Intercampus6–13 Jan 202680638.339.722.01.4Consulmark25–13 Jan 202699340.244.015.83.8Pitagórica11–19 Dec 20251,0004042182