Opinion polling for the 2025 Portuguese legislative election

In the run up to the 2025 Portuguese legislative election, various organisations carried out opinion polling to gauge voting intention in Portugal. Results of such polls are displayed in this article. The date range for these opinion polls are from the 2024 Portuguese legislative election, held on 10 March, to the 2025 Portuguese legislative election, held on 18 May.

Nationwide polling

Graphical summary

Polling

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 party's colour. In the instance that there is a tie, parties are shaded with their colour. The lead column on the right shows the percentage-point difference between the two parties with the highest figures. Poll results use the date the survey's fieldwork was done, as opposed to the date of publication.

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 firm/Link Fieldwork date Sample size Turnout Lead2025 legislative election 18 May 2025 58.331.8 22.8 22.8 5.4 2.0 2.9 4.1 1.4 6.89.0 CESOP–UCP 18 May 2025 39,103 58–6429–34 21–26 20–24 4–7 1–3 2–4 3–6 1–2 – 8 ICS/ISCTE–GfK/Metris 18 May 2025 22,056 60.3–65.330.3–34.7 21.6–25.8 19.9–24.1 4.2–7.4 1.0–3.6 1.4–4.0 3.3–6.5 0.5–2.5 – 8.7–8.9 Pitagórica 18 May 2025 24,792 52.3–58.529.1–35.1 19.4–25.4 19.5–25.5 5.0–8.0 1.1–4.1 1.3–4.3 3.2–6.2 0.5–2.5 – 9.6 Intercampus 18 May 2025 23,365 54.3–59.330.9–36.9 19.4–25.4 20.6–26.6 3.3–7.3 0.5–3.5 1.4–4.4 1.9–5.4 0.3–2.3 – 10.3Pitagórica12–15 May 2025810 ?33.225.619.25.82.23.05.11.34.67.6Pitagórica11–14 May 2025810 ?31.925.219.15.62.63.35.51.45.46.7Pitagórica10–13 May 2025810 ?31.526.318.37.02.43.74.41.15.35.2 CESOP–UCP 6–13 May 2025 1,741 ?34 26 19 7 2 3 5 1 38 Consulmark2 6–13 May 2025 589 ?33.1 25.9 15.7 7.6 3.8 2.8 6.2 1.1 3.87.2Pitagórica9–12 May 2025810 ?33.124.617.86.33.23.25.31.15.48.5Pitagórica8–11 May 2025810 ?32.025.118.06.82.43.34.51.86.16.9Aximage6–11 May 202542670.327.626.720.06.34.73.24.93.23.40.9Pitagórica7–10 May 2025810 ?33.125.716.06.82.83.24.91.56.07.4Pitagórica6–9 May 2025810 ?33.725.915.35.63.42.75.31.66.57.8Pitagórica5–8 May 2025810 ?33.726.315.75.92.53.05.21.36.47.4Pitagórica4–7 May 2025810 ?34.226.316.06.32.83.14.00.76.67.9Pitagórica3–6 May 2025810 ?34.926.116.76.82.13.23.90.55.88.8 CESOP–UCP 28 Apr–6 May 2025 1,464 ?32 28 20 6 2 3 4 1.5 3.54Pitagórica2–5 May 2025810 ?34.826.616.86.82.33.53.80.64.88.2Aximage1–5 May 2025654 ?28.628.418.17.33.42.44.12.65.10.2ICS/ISCTE25 Apr–5 May 20251,002 ?32 27 19 5 2 4 3 2 65Intercampus24 Apr–5 May 20251,055 ?28.8 24.1 17.4 6.1 3.3 3.0 3.1 1.9 12.34.7Pitagórica1–4 May 2025810 ?35.827.116.57.51.83.23.40.64.18.7Pitagórica30 Apr–3 May 2025810 ?35.626.916.26.62.13.13.90.94.78.7Pitagórica29 Apr–2 May 2025810 ?34.527.715.76.92.23.14.00.75.26.8Pitagórica28 Apr–1 May 2025810 ?34.027.516.67.81.53.33.40.65.36.5 CESOP–UCP 21–24 Apr 2025 1,215 ?32 26 19 6 3 4 5 1 46 Consulmark2 14–22 Apr 2025 569 ?34.1 27.1 15.2 8.3 2.7 2.7 4.3 1.1 4.57.0Pitagórica14–21 Apr 20251,000 ?34.828.115.27.41.94.14.40.63.56.7ICS/ISCTE5–14 Apr 2025803 ?33 29 21 4 2 2 1 2 64 Intercampus 4–9 Apr 2025 607 ? 27.228.9 17.2 6.7 3.0 5.9 5.1 3.4 2.61.7 Aximage 4–8 Apr 2025 667 59.4 27.230.1 18.6 6.1 2.3 3.2 4.4 1.8 6.32.9 Aximage 1–6 Apr 2025 400 72.0 28.628.7 20.4 7.9 2.0 4.3 3.1 1.0 4.00.1 Consulmark2 27 Mar–3 Apr 2025 583 ?33.325.913.58.13.82.54.31.47.27.4Pitagórica24–29 Mar 20251,000 ?34.427.814.96.02.73.45.50.54.86.6 Intercampus 20–26 Mar 2025 605 ?30.7 26.8 14.3 10.7 3.1 2.1 4.6 3.1 4.53.9 CESOP–UCP 17–26 Mar 2025 1,206 ?29 27 17 8 5 3 5 2 42 Metris 15–24 Mar 2025 1,022 ? 3032 18 4 4 4 1 1 62 Aximage 17–21 Mar 2025 1,343 72.0 28.031.0 20.2 6.9 2.8 3.6 2.2 1.5 3.83.0ICS/ISCTE12–17 Mar 2025802 ?37.7 27.9 16.2 7.7 1.7 2.1 1.9 0.4 4.39.8 Intercampus 11–13 Mar 2025 600 ? 26.227.9 18.5 9.3 5.2 2.7 4.4 2.1 3.71.7 Consulmark2 6–12 Mar 2025 594 ?32.128.016.57.73.43.22.40.66.14.1 Intercampus 4–10 Mar 2025 620 ? 26.928.6 17.4 8.0 5.5 3.4 4.5 3.4 2.31.7 Aximage 6–8 Mar 2025 601 78.7 25.830.8 17.3 7.3 4.3 2.4 2.5 0.8 8.85.0Pitagórica3–6 Mar 2025625 ?33.528.813.56.72.93.02.71.97.04.7Pitagórica23–27 Feb 2025400 ?35.627.217.45.11.53.64.81.53.38.4 Aximage 23–28 Jan 2025 800 78.629.3 28.1 18.4 5.6 3.8 3.5 4.1 2.9 4.31.2Pitagórica21–26 Jan 2025400 ?33.027.316.86.33.13.43.72.04.45.7 Intercampus 21–26 Jan 2025 638 ? 27.828.2 17.3 7.0 5.9 3.4 3.9 3.4 3.10.4 Aximage 16–21 Jan 2025 802 68.029.1 26.7 20.5 6.3 4.4 3.2 3.5 2.5 3.82.4ICS/ISCTE9–20 Jan 2025805 ?33 30 17 4 3 3 2 2 63Pitagórica28 Dec 2024–5 Jan 2025400 ?32.926.916.35.74.34.03.11.45.46.0 Intercampus 21–27 Nov 2024 605 ? 28.830.0 16.2 8.3 5.8 3.3 3.3 3.2 1.01.2 Aximage 15–22 Nov 2024 800 71.028.1 26.7 20.9 6.0 3.3 3.7 4.3 1.6 5.41.4 Aximage 13–19 Nov 2024 802 78.129.8 28.6 18.2 6.8 4.0 2.6 4.1 2.4 3.51.2 CESOP–UCP 17–23 Oct 2024 1,025 ?33 29 18 6 4 3 3 2 24 Intercampus 4–10 Oct 2024 612 ? 28.229.5 14.1 7.5 6.0 3.8 3.5 2.0 5.31.3 Aximage 30 Sep–5 Oct 2024 802 68.032.1 28.6 15.1 6.3 5.5 3.0 3.5 2.3 3.63.5 Intercampus 29 Aug–4 Sep 2024 604 ? 29.531.5 14.8 8.2 6.3 3.6 3.0 1.3 1.82.0 Intercampus 19–26 Jul 2024 609 ?28.7 26.0 15.5 9.8 6.3 2.4 5.3 3.6 2.42.7 CESOP–UCP 7–13 Jul 2024 957 ? 3133 14 7 4 3 3 2 32 Aximage 3–8 Jul 2024 801 74.9 27.629.5 17.5 7.1 4.6 3.5 4.1 2.5 3.61.9 2024 EP elections 9 Jun 2024 36.6 31.132.1 9.8 9.1 4.3 4.1 3.8 1.2 4.51.0 Intercampus 29 May–4 Jun 2024 604 ?29.5 27.1 16.1 9.3 7.1 1.6 5.5 3.1 0.72.4 Intercampus 12–20 May 2024 609 ? 23.724.7 17.4 9.0 8.2 2.5 9.4 3.2 1.91.0 CESOP–UCP 13–18 May 2024 965 ?30 29 19 5 4 3 5 2 31 Intercampus 18–23 Apr 2024 605 ? 24.328.7 15.6 7.9 9.7 2.3 5.7 2.9 2.94.42024 legislative election 10 Mar 2024 59.928.8 28.0 18.1 4.9 4.4 3.2 3.2 2.0 7.5 0.8

Constituency polling Faro Polling firm/Link Fieldwork date Sample size Turnout Lead2025 legislative election 18 May 2025 60.133.9 20.5 25.7 2.5 4.4 2.7 3.4 1.8 5.1 8.2 Aximage 6–8 Apr 2025 300 ?28.726.226.73.64.34.51.50.34.3 2.02024 EP elections9 Jun 202442.214.329.528.25.19.34.13.71.54.31.32024 legislative election 10 Mar 2024 61.727.2 25.5 22.4 5.8 4.6 3.2 2.8 2.6 5.9 1.7

Santarém Polling firm/Link Fieldwork date Sample size Turnout Lead2025 legislative election 18 May 2025 64.7 22.830.6 28.1 1.8 3.6 3.9 3.2 1.1 4.9 2.5 Aximage 16–20 Apr 2025 305 ?26.326.428.04.24.43.34.31.71.4 1.62024 EP elections9 Jun 202444.732.230.012.53.84.57.93.11.05.02.22024 legislative election 10 Mar 2024 66.527.8 27.3 23.3 4.5 4.1 3.8 2.5 1.6 5.1 0.5

Setúbal Polling firm/Link Fieldwork date Sample size Turnout Lead2025 legislative election 18 May 2025 65.1 25.026.4 21.0 7.1 2.7 5.5 5.8 1.9 4.6 1.4 Aximage 17–27 Mar 2025 446 ?32.824.121.15.32.65.34.42.12.38.72024 EP elections9 Jun 202442.234.211.919.99.65.69.14.51.53.814.32024 legislative election 10 Mar 2024 66.931.3 20.3 17.2 7.7 6.0 5.4 4.3 2.6 5.2 11.0

Leadership polls Preferred prime minister Poll results showing public opinion on who would make the best prime minister or who is better positioned to win are shown in the table below in reverse chronological order, showing the most recent first.

Polling firm/Link Fieldwork date Both/ Lead CESOP–UCP 6–13 May 202549282321 Consulmark2 6–13 May 202544.126.714.610.73.917.4 CESOP–UCP 28 Apr–6 May 202547282519Intercampus24 Apr–5 May 202541.2 28.115.115.613.1 CESOP–UCP 21–24 Apr 202547292418Consulmark214–22 Apr 202543.925.112.514.63.918.8 Intercampus 4–9 Apr 2025 46.5 37.9 5.9 9.7 8.6 Aximage 4–8 Apr 2025 36 27 22 5 10 9 Consulmark2 27 Mar–3 Apr 2025 42.7 30.4 8.4 13.4 5.1 12.3 Intercampus 20–26 Mar 2025 48.8 31.9 0.2 19.2 16.9 CESOP–UCP 17–26 Mar 2025 46 31 17 6 15 Consulmark2 6–12 Mar 2025 41.9 27.4 11.6 14.5 4.5 14.5 Aximage 6–8 Mar 2025 34 28 25 8 5 6 Aximage 23–28 Jan 2025 40 27 18 9 7 13 Aximage 13–19 Nov 2024 40 28 18 8 6 12 Aximage 13–19 Nov 2024 40 28 18 8 6 12 Aximage 30 Sep–5 Oct 2024 45 28 16 7 4 17 Intercampus 29 Aug–4 Sep 2024 45.9 31.8 22.3 14.1 Aximage 3–8 Jul 2024 37 28 16 11 8 9 Aximage 17–22 May 2024 40 28 18 9 5 12

Party leaders' approval/disapproval ratings Poll results showing public opinion on the performance of the leaders of all parties in parliament are shown in the table below in reverse chronological order, showing the most recent first. Polling firm/LinkFieldwork dateLuís MontenegroNuno MeloPedro Nuno SantosAndré VenturaRui RochaMariana MortáguaPaulo RaimundoRui TavaresInês Sousa RealPos.Neg.NetPos.Neg.NetPos.Neg.NetPos.Neg.NetPos.Neg.NetPos.Neg.NetPos.Neg.NetPos.Neg.NetPos.Neg.NetIntercampus24 Apr–5 May 202535.034.6 +0.412.847.5–34.730.435.1–4.718.854.1–35.317.232.6–15.412.347.0–34.79.853.7–43.715.633.8–18.213.736.0–22.3Pitagórica14–21 Apr 20255144 +73264–321880–62Intercampus4–9 Apr 202526.747.9–21.212.045.8–33.824.148.1–24.017.866.8–49.025.732.0–6.312.054.4–42.49.858.1–48.323.731.8–8.112.847.8–35.0Aximage4–8 Apr 20253953–143144–133255–232864–364529 +163253–212256–343735 +22741–14Pitagórica24–29 Mar 20255044 +62866–381880–62Intercampus20–26 Mar 202527.639.8–12.211.445.5–34.121.048.9–27.914.770.1–21.230.629.6 +1.09.959.5–49.68.256.9–48.724.332.6–8.313.442.2–28.8Intercampus4–10 Mar 202529.942.7–12.811.643.3–31.724.446.2–21.821.860.7–38.925.825.8016.554.4–37.98.152.4–44.323.731.8–8.114.738.8–24.1Pitagórica3–6 Mar 20254746 +13557–221977–58Pitagórica23–27 Feb 20255238 +143556–212275–53Aximage23–28 Jan 20255039 +113146–153652–163063–333540–52858–302355–323539–43242–10Pitagórica21–26 Jan 20255436 +182863–352570–45Intercampus21–26 Jan 202532.932.0 +0.99.548.4–38.924.142.0–17.920.463.5–43.118.235.1–16.915.552.8–37.87.055.0–48.019.037.3–18.314.144.3–30.2Aximage16–21 Jan 20255137 +143043–133746–93555–203238–6Intercampus21–27 Nov 202437.031.6 +5.412.643.8–31.227.441.2–13.822.460.9–38.523.531.4–7.919.250.5–31.37.655.9–48.324.230.8—6.515.340.7–25.4Aximage15–22 Nov 20245237 +152945–163950–113259–273339–6Aximage13–19 Nov 20245339 +142950–213951–122865–373542–73254–222055–353837 +13045–15Intercampus4–10 Oct 202436.627.6 +9.09.348.0–38.730.733.3–2.618.663.9–45.321.231.2–10.018.644.1–25.55.751.3–45.621.927.0–5.113.040.1–27.1Aximage30 Sep–5 Oct 20246031 +292850–224249–73064–344235 +73452–182056–363935 +42947–18Intercampus29 Aug–4 Sep 202444.922.7 +22.211.044.0–33.038.432.1 +6.321.361.7–40.424.530.5–6.021.940.6–18.77.857.1–49.319.531.8–12.315.138.2–23.1Intercampus19–26 Jul 202443.626.3 +17.313.837.2–23.425.539.9–14.419.962.2–42.327.431.1—3.722.541.3–18.88.252.9–44.724.631.9–7.317.035.0–18.0Aximage3–8 Jul 20245829 +293540–54342 +13162–314430 +143845–72551–263935 +43342–9Intercampus29 May–4 Jun 202438.129.4 +8.714.241.4–27.228.738.1–9.423.558.6–35.526.626.6025.341.6–16.311.948.9–37.027.128.8–1.718.731.5–12.8Intercampus12–20 May 202427.227.7–0.510.743.9–33.230.236.5–6.324.555.2–30.728.124.9 +3.227.637.4–9.812.045.7–33.732.720.8 +11.918.829.7–10.9Intercampus18–23 Apr 202433.133.7–0.611.040.6–29.628.441.4–13.020.362.2–41.927.829.7–1.928.442.1–13.711.449.5–38.129.325.5 +3.818.831.7–12.9

Party leaders' ratings Poll results showing the public opinion on all political party leaders rated from 0 to 10 (with the former being strong disapproval and the latter strong approval) are shown in the table below in reverse chronological order (showing the most recent first).