Portugal / Parliamentary Election

Next Portuguese Legislative Election

Name: Next Portuguese Legislative Election opinion polls
Creator: Pollytic

Portugal polling average: Partido Socialista 28.8% — Chega 26.4% — Partido Socialista +2.4Also: AD 24.5% · IL 5.3% · L 3.9% · CDU 3.1% …Pollytic average to 25 Oct 2026: recent, larger polls weigh more; no institute counts more than once.

Election date

Polling trend

The average of recent polls. Newer polls and more accurate pollsters count more. How it’s calculated

Each point is one published poll; lines are the Pollytic average (recent, larger polls weigh more). Hover or tap for institute and date.

Latest polls

Each poll as published, with its pollster, fieldwork dates, sample size and a link to the source.

How to read a poll

Sample size is how many people were asked. More people means less random error, never none.
±3 is the margin of error: the real figure is likely within 3 points either way of the one shown.
Two polls can differ because they were taken on different dates, with different methods and different samples.
est. means the institute did not publish a margin of error, so it is estimated from the sample size.
The average smooths this out: it combines recent polls, so one unusual poll cannot swing the picture.

Polls with institute, dates, sample, margin of error, methodology and results
Institute	Date	Fieldwork	Sample	MoE	Method	Voting intention	Source
Pitagórica	16 Oct 2026*	21 Sept 2026 – 16 Oct 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 28.6% +0.3 percentage points CH 27.9% ±0.0 percentage points AD 22.8% −0.1 percentage points IL 7.0% +0.2 percentage points CDU 3.2% +0.6 percentage points L 2.8% −0.3 percentage points BE 1.8% +0.1 percentage points PAN 1.3% +0.3 percentage points	Source for Pitagórica poll (opens in a new tab)
ICS/ISCTE	25 Oct 2026*	16 Oct 2026 – 25 Oct 2026	808	±3.4 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 30.0% −1.0 percentage points CH 26.0% +6.0 percentage points AD 26.0% −1.0 percentage points IL 4.0% +1.0 percentage points L 4.0% +1.0 percentage points CDU 3.0% −2.0 percentage points BE 2.0% ±0.0 percentage points PAN 0.0% −2.0 percentage points JPP 0.0% ±0.0 percentage points	Source for ICS/ISCTE poll (opens in a new tab)
Pitagórica	10 Oct 2026*	14 Sept 2026 – 10 Oct 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 28.3% +0.8 percentage points CH 27.9% +0.6 percentage points AD 22.9% −1.0 percentage points IL 6.8% +0.1 percentage points L 3.1% +0.4 percentage points CDU 2.6% −0.2 percentage points BE 1.7% ±0.0 percentage points PAN 1.0% ±0.0 percentage points	Source for Pitagórica poll (opens in a new tab)
Pitagórica	3 Oct 2026*	7 Sept 2026 – 3 Oct 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.5% −0.2 percentage points CH 27.3% −0.1 percentage points AD 23.9% −0.9 percentage points IL 6.7% +0.4 percentage points CDU 2.8% +0.4 percentage points L 2.7% −0.6 percentage points BE 1.7% +0.1 percentage points PAN 1.0% −0.1 percentage points	Source for Pitagórica poll (opens in a new tab)
Pitagórica	26 Sept 2026*	31 Aug 2026 – 26 Sept 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.7% −0.2 percentage points CH 27.4% +0.1 percentage points AD 24.8% −0.3 percentage points IL 6.3% −0.2 percentage points L 3.3% −0.6 percentage points CDU 2.4% +0.4 percentage points BE 1.6% ±0.0 percentage points PAN 1.1% +0.4 percentage points	Source for Pitagórica poll (opens in a new tab)
Intercampus	12 Oct 2026*	6 Oct 2026 – 12 Oct 2026	615	±4.0 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 24.4% −3.1 percentage points CH 24.0% +0.1 percentage points AD 21.7% −1.7 percentage points IL 8.0% −1.9 percentage points L 5.5% +1.5 percentage points CDU 4.7% +2.5 percentage points PAN 4.1% +2.1 percentage points BE 2.8% ±0.0 percentage points	Source for Intercampus poll (opens in a new tab)
Pitagórica	18 Sept 2026*	24 Aug 2026 – 18 Sept 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.9% ±0.0 percentage points CH 27.3% ±0.0 percentage points AD 25.1% ±0.0 percentage points IL 6.5% ±0.0 percentage points L 3.9% ±0.0 percentage points CDU 2.0% ±0.0 percentage points BE 1.6% ±0.0 percentage points PAN 0.7% ±0.0 percentage points	Source for Pitagórica poll (opens in a new tab)
Pitagórica	12 Sept 2026*	18 Aug 2026 – 12 Sept 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 28.6% ±0.0 percentage points CH 27.6% ±0.0 percentage points AD 24.3% ±0.0 percentage points IL 6.7% ±0.0 percentage points L 4.2% ±0.0 percentage points CDU 2.3% ±0.0 percentage points BE 1.4% ±0.0 percentage points PAN 1.3% ±0.0 percentage points	Source for Pitagórica poll (opens in a new tab)
Pitagórica	4 Sept 2026*	10 Aug 2026 – 4 Sept 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.9% ±0.0 percentage points CH 27.1% ±0.0 percentage points AD 25.7% ±0.0 percentage points IL 6.1% ±0.0 percentage points L 4.0% ±0.0 percentage points CDU 2.4% ±0.0 percentage points BE 2.2% ±0.0 percentage points PAN 1.3% ±0.0 percentage points	Source for Pitagórica poll (opens in a new tab)
Aximage	7 Oct 2026*	6 Oct 2026 – 7 Oct 2026	501	±4.4 est. (Not published: estimated from sample size (95%, simple random sample))	—	CH 30.7% +2.1 percentage points PS 28.9% −0.2 percentage points AD 21.7% −0.2 percentage points IL 5.6% −0.7 percentage points L 3.3% +0.2 percentage points PAN 2.0% −0.5 percentage points CDU 1.8% +0.1 percentage points BE 1.7% +0.8 percentage points	Source for Aximage poll (opens in a new tab)
Pitagórica	14 Sept 2026*	24 Aug 2026 – 14 Sept 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.9% −0.7 percentage points CH 27.3% −0.3 percentage points AD 25.1% +0.8 percentage points IL 6.5% −0.2 percentage points L 3.9% −0.3 percentage points CDU 2.0% −0.3 percentage points BE 1.6% +0.2 percentage points PAN 0.7% −0.6 percentage points	Source for Pitagórica poll (opens in a new tab)
Aximage	7 Sept 2026*	1 Sept 2026 – 7 Sept 2026	1,109	±2.9 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 29.7% +1.0 percentage points CH 25.4% −0.8 percentage points AD 20.9% −4.1 percentage points IL 7.9% +0.5 percentage points L 3.4% +0.1 percentage points CDU 3.0% +0.7 percentage points PAN 2.4% +1.4 percentage points BE 1.6% −0.2 percentage points	Source for Aximage poll (opens in a new tab)
Aximage	15 Sept 2026*	14 Sept 2026 – 15 Sept 2026	500	±4.4 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 29.1% −0.6 percentage points CH 28.6% +3.2 percentage points AD 21.9% +1.0 percentage points IL 6.3% −1.6 percentage points L 3.1% −0.3 percentage points PAN 2.5% +0.1 percentage points CDU 1.7% −1.3 percentage points BE 0.9% −0.7 percentage points	Source for Aximage poll (opens in a new tab)
Intercampus	14 Sept 2026*	7 Sept 2026 – 14 Sept 2026	609	±4.0 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.5% +0.6 percentage points CH 23.9% −0.5 percentage points AD 23.4% +1.2 percentage points IL 9.9% +1.8 percentage points L 4.0% −2.9 percentage points BE 2.8% −0.2 percentage points CDU 2.2% −0.8 percentage points PAN 2.0% −1.2 percentage points	Source for Intercampus poll (opens in a new tab)
Pitagórica	7 Sept 2026*	17 Aug 2026 – 7 Sept 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 28.6% +0.7 percentage points CH 27.6% +0.5 percentage points AD 24.3% −1.4 percentage points IL 6.7% +0.6 percentage points L 4.2% +0.2 percentage points CDU 2.3% −0.1 percentage points BE 1.4% −0.8 percentage points PAN 1.3% ±0.0 percentage points	Source for Pitagórica poll (opens in a new tab)
Pitagórica	31 Aug 2026*	10 Aug 2026 – 31 Aug 2026	804	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 27.9% new CH 27.1% new AD 25.7% new IL 6.1% new L 4.0% new CDU 2.4% new BE 2.2% new PAN 1.3% new	Source for Pitagórica poll (opens in a new tab)
Intercampus	31 Jul 2026*	10 Jul 2026 – 31 Jul 2026	803	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 26.9% +0.3 percentage points CH 24.4% +2.3 percentage points AD 22.2% −0.6 percentage points IL 8.1% −0.6 percentage points L 6.9% −0.9 percentage points PAN 3.2% +0.3 percentage points BE 3.0% +0.9 percentage points CDU 3.0% −1.7 percentage points	Source for Intercampus poll (opens in a new tab)
Aximage	27 Jul 2026*	22 Jul 2026 – 27 Jul 2026	802	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 28.7% −0.5 percentage points CH 26.2% −0.2 percentage points AD 25.0% +1.8 percentage points IL 7.4% ±0.0 percentage points L 3.3% −1.3 percentage points CDU 2.3% +0.5 percentage points BE 1.8% +0.5 percentage points PAN 1.0% −1.1 percentage points	Source for Aximage poll (opens in a new tab)
Aximage	21 Jul 2026*	20 Jul 2026 – 21 Jul 2026	501	±4.4 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 29.2% −0.1 percentage points CH 26.4% +2.8 percentage points AD 23.2% −2.1 percentage points IL 7.4% +0.9 percentage points L 4.6% −1.2 percentage points PAN 2.1% −0.1 percentage points CDU 1.8% +0.2 percentage points BE 1.3% −0.2 percentage points	Source for Aximage poll (opens in a new tab)
Intercampus	14 Jul 2026*	9 Jul 2026 – 14 Jul 2026	604	±4.0 est. (Not published: estimated from sample size (95%, simple random sample))	—	PS 26.6% −1.3 percentage points AD 22.8% +0.4 percentage points CH 22.1% −1.2 percentage points IL 8.7% +0.9 percentage points L 7.8% +1.3 percentage points CDU 4.7% +1.3 percentage points PAN 2.9% +0.3 percentage points BE 2.1% −0.8 percentage points	Source for Intercampus poll (opens in a new tab)

* End of fieldwork: the source states no publication date.

Select two or more polls to compare them side by side.

What the polls say

PS leads the polling average in Portugal on 28.8%, 2.4 points ahead of CH (26.4%). The biggest shift over the past month is IL, down 2.2 points.

7 polls from 4 institutes were published in the last 30 days of polling. The most recent is from ICS/ISCTE, published 25 Oct 2026. The average gives recent and larger polls more weight and counts no institute more than once; read how it works.

Parties

Who is standing, in order of the polling average, then the result.

Partido Socialista
Chega
Aliança Democrática
Iniciativa Liberal
LIVRE
Coligação Democrática Unitária
Bloco de Esquerda
Pessoas–Animais–Natureza
Juntos pelo Povo

Government

Who governs Portugal now.

Luís Montenegro

Luís Montenegro government