Opinion polling for the 2015 Portuguese legislative election

In the run up to the 2015 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 previous general election, held on 5 June 2011, to the day the next election was held, on 4 October 2015.

Graphical summary

Party vote

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, then no figure is shaded but both are displayed in bold. 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.

Date	Polling Firm	Sample size	[a]								Others	Lead
4 Oct 2015	2015 legislative election	55.9%	38.6		32.3	8.3	10.2	0.4	0.7	1.1	8.4	6.3
4 Oct	Aximage[b]		40.2		32.3	8.9	9.4				9.2	7.9
4 Oct	Eurosondagem[b]	46,626	38.3		31.3	7.9	9.3				13.2	7.0
4 Oct	Intercampus[b]	17,726	39.2		31.7	8.5	10.2				10.4	7.5
4 Oct	UCP–CESOP[b]	25,898	40.5		32.5	8.0	9.5		1.0		8.5	8.0
Exit polls
26 Sep–1 Oct	Aximage	1,387	39.1		32.5	9.2	9.0				10.2	6.6
26–30 Sep	UCP–CESOP[c]	1,070	39.0		34.0	10.0	8.0				9.0	5.0
22–30 Sep	Intercampus	1,013	37.2		32.9	8.8	7.9	0.5	0.5	1.7	10.5	4.3
29 Sep	Aximage[c]	200	40.3		31.8	8.1	7.1				12.7	8.5
26–29 Sep	Intercampus[c]	1,008	38.4		32.1	8.4	7.9				13.2	6.3
25–29 Sep	UCP–CESOP[c]	1,010	39.0		33.0	11.0	8.0				9.0	6.0
24–29 Sep	Eurosondagem	2,067	37.7		32.7	9.4	6.7				13.5	5.0
22–29 Sep	Marktest	1,607	41.0		28.6	9.3	8.7		0.8	0.7	10.9	12.4
28 Sep	Aximage[c]	200	39.0		32.1	8.2	7.1				13.6	6.9
25–28 Sep	Intercampus[c]	1,008	38.8		31.6	8.2	7.9				13.5	7.2
24–28 Sep	UCP–CESOP[c]	1,071	40.0		34.0	10.0	7.0				9.0	6.0
27 Sep	Aximage[c]	199	38.4		31.8	8.4	7.1				14.3	6.6
26–27 Sep	UCP–CESOP	3,302	38.0		32.0	9.0	9.0		1.0	1.0	10.0	6.0
24–27 Sep	Intercampus[c]	1,025	37.9		32.1	9.1	7.5				13.4	5.8
23–27 Sep	UCP–CESOP[c]	1,075	41.0		34.0	9.0	7.0				9.0	7.0
26 Sep	Aximage[c]	200	37.9		32.3	8.6	7.0				14.2	5.6
23–26 Sep	Intercampus[c]	1,025	38.1		33.0	9.0	6.7				13.2	5.1
22–26 Sep	UCP–CESOP[c]	936	43.0		33.0	8.0	7.0				9.0	10.0
25 Sep	Aximage[c]		37.7		32.3						30.0	5.4
22–25 Sep	Intercampus[c]	1,025	37.5		32.8	8.9	6.7		0.3	1.1	12.7	4.7
21–25 Sep	UCP–CESOP[c]	1,027	42.0		35.0	8.0	7.0				8.0	7.0
24 Sep	Aximage[c]		37.7		32.6						29.7	5.1
21–24 Sep	Intercampus[c]	1,024	37.0		32.3	9.2	6.1			1.1	14.3	4.7
20–24 Sep	UCP–CESOP[c]	1,046	41.0		34.0	9.0	7.0				9.0	7.0
18–24 Sep	Aximage	710	37.9		32.0	9.0	7.1				14.0	5.9
23 Sep	Aximage[c]	100	37.0		33.4	7.6	6.5				15.5	3.6
20–23 Sep	Intercampus[c]	1,017	37.9		32.9	7.8	6.0				15.4	5.0
19–23 Sep	UCP–CESOP[c]	891	40.0		35.0	9.0	8.0				8.0	5.0
17–23 Sep	Eurosondagem	1,548	35.5		36.0	10.1	5.0		1.5	1.9	10.0	0.5
22 Sep	Aximage[c]	103	36.3		34.3	7.9	6.2				15.3	2.0
19–22 Sep	Intercampus[c]	1,007	38.9		34.1	8.3	4.8				13.9	4.8
18–22 Sep	UCP–CESOP[c]	828	40.0		34.0	10.0	8.0				8.0	6.0
21 Sep	Aximage[c]		35.9		34.7						29.4	1.2
18–21 Sep	Intercampus[c]	1,005	38.9		35.7	7.3	4.4				13.7	3.2
17–21 Sep	UCP–CESOP[c]	738	40.0		35.0	8.0	7.0				10.0	5.0
20 Sep	Aximage[c]		35.6		34.8						29.6	0.8
18–20 Sep	Intercampus[c]	733	40.1		37.1	6.3	4.0				12.5	3.0
19 Sep	Aximage[c]		35.6		34.9						29.5	0.7
16–19 Sep	UCP–CESOP[c]	613	40.0		35.0	8.0	7.0				10.0	5.0
18 Sep	Aximage[c]		35.5		35.1	8.4	5.7				15.3	0.4
15–18 Sep	UCP–CESOP[c]	678	40.0		34.0	8.0	8.0				10.0	6.0
14–17 Sep	UCP–CESOP[c]	647	41.0		34.0	7.0	8.0				10.0	7.0
13–17 Sep	Aximage	704	35.3		34.7	8.3	5.8				16.0	0.6
11–16 Sep	Eurosondagem	1,867	34.0		35.5	10.3	5.2		1.8	2.2	11.0	1.5
4–7 Sep	Aximage	602	38.9		33.3	8.5	4.6		1.6	1.8	11.3	5.6
27 Aug–2 Sep	Eurosondagem	1,040	35.0		36.0	10.4	4.6		1.7	2.3	10.0	1.0
29 Jul–4 Aug	Eurosondagem	1,030	34.8		36.3	10.0	5.0		1.7	2.3	9.9	1.5
12–16 Jul	Aximage	607	37.8		38.0	7.5	4.0		1.3	1.4	10.0	0.2
2–7 Jul	Eurosondagem	1,025	34.6		36.7	10.2	4.8		1.9	2.5	9.3	2.1
26 Jun–4 Jul	Intercampus	1,014	32.7		37.6	11.0	6.0	0.9	0.6	0.8	10.4	4.9
15–21 Jun	Pitagórica	523	36.4		33.5	10.1	3.6		1.3	1.6	13.5	2.9
13–16 Jun	UCP–CESOP	1,048	38.0		37.0	10.0	8.0				7.0	1.0
4–9 Jun	Eurosondagem	1,030	33.3		36.9	10.5	4.5		2.0	2.7	10.1	3.6
31 May–4 Jun	Aximage	598	37.2		38.0	7.5	4.0		1.2	2.1	10.0	0.8
7–12 May	Eurosondagem	1,021	33.6		38.1	10.3	4.8		1.8	2.5	8.9	4.5
7–10 May	Aximage	605	37.2		37.3	7.7	4.2		2.0	2.6	9.0	0.1
9–15 Apr	Eurosondagem	1,025	26.7	8.0	37.5	10.2	4.3		2.0	2.8	8.5	10.8
4–8 Apr	Aximage	602	30.5	6.0	36.9	9.2	3.5		1.7	3.8	8.4	6.4
5–10 Mar	Eurosondagem	1,005	25.2	8.1	38.1	9.6	4.4		2.1	3.0	9.5	12.9
3–6 Mar	Aximage	600	28.9	6.1	36.1	10.7	4.0		1.6	4.4	8.2	7.2
18–25 Feb	Eurosondagem[1]	1,515	35.0		37.5	9.6	4.2		2.1	2.5	9.1	2.5
18–25 Feb	Eurosondagem[2]	1,515	27.8	7.7	36.5	10.0	4.4		2.3	2.7	8.6	8.7
5–11 Feb	Eurosondagem	1,015	26.7	6.9	38.1	9.0	4.0		2.2	3.0	10.1	11.4
4–8 Feb	Aximage	608	30.2	5.3	36.7	9.2	3.8		2.5	5.2	7.1	6.5
8–14 Jan	Eurosondagem	1,010	26.9	7.9	37.9	9.3	3.5		2.0	2.5	10.0	11.0
9–12 Jan	Aximage	601	30.9	4.7	36.9	7.7	3.5		3.0	5.2	8.1	6.0
2015
4–10 Dec	Eurosondagem	1,036	25.2	7.3	37.5	10.1	3.3		1.7	2.2	12.7	12.3
1–4 Dec	Aximage	607	31.0	5.1	37.4	7.6	5.2		2.9	4.1	6.7	6.4
6–11 Nov	Eurosondagem	1,022	25.3	7.7	36.9	10.4	3.6	1.0	1.5		13.6	10.6
7–10 Nov	Aximage	603	31.1	5.2	38.5	7.9	6.0		2.1	2.1	7.1	7.4
11–13 Oct	UCP–CESOP	1,064	28.0	4.0	45.0	10.0	4.0				9.0	17.0
2–7 Oct	Eurosondagem	1,021	26.2	8.0	34.8	10.5	4.0	2.1	1.6		12.8	8.6
1–4 Oct	Aximage	609	27.4	6.1	40.2	9.2	7.7			1.1	8.3	12.8
4–9 Sep	Eurosondagem	1,011	28.0	7.5	33.0	10.7	4.3	3.3	1.7	Did not exist	11.5	5.0
31 Aug–3 Sep	Aximage	602	28.6	8.4	30.9	11.9	5.7				14.5	2.3
31 Jul–6 Aug	Eurosondagem	1,033	27.8	7.0	32.1	11.0	4.5	3.6	1.9		12.1	4.3
25–31 Jul	Pitagórica[d]	504	26.8	5.1	33.9	13.0	3.1	3.1			15.0	7.1
25–31 Jul	Pitagórica[e]	504	28.1	6.9	30.0	12.7	4.2	3.5			14.6	1.9
3–9 Jul	Eurosondagem	1,014	27.5	6.6	32.5	11.1	4.9	4.0	2.0		11.4	5.0
4–7 Jul	Aximage	593	27.2	8.3	31.0	10.7	6.9				15.9	3.8
2–5 Jun	Eurosondagem	1,025	26.1	6.9	33.0	11.8	4.8	4.6	2.0		10.8	6.9
1–4 Jun	Aximage	608	24.9	7.8	32.0	13.0	6.0				12.7	7.1
30 May–1 Jun	Pitagórica[d]	506	27.5	6.2	35.2	13.6	4.4	3.3			9.8	7.7
30 May–1 Jun	Pitagórica[e]	506	28.0	6.3	30.6	14.4	4.8	3.7			12.2	2.6
25 May 2014	2014 EP elections	33.8%	27.7		31.5	12.7	4.6	7.1	2.2		14.3	3.8
19–24 May	Intercampus	4,004	28.7	2.4	29.1	11.4	5.4				23.0	0.4
14–22 May	Aximage	1,507	29.0	7.3	36.2	10.3	6.5				10.7	7.2
1–7 May	Eurosondagem	1,005	26.9	8.1	38.0	10.4	6.6				10.0	11.1
2–5 May	Aximage	605	30.5	6.8	36.2	10.5	6.6				9.4	5.7
12–14 Apr	UCP–CESOP	1,117	30.0	4.0	36.0	12.0	7.0				11.0	6.0
9–12 Apr	Aximage	613	31.5	6.1	36.1	11.8	6.4				8.1	4.6
3–9 Apr	Eurosondagem	1,011	25.2	8.1	37.3	10.9	7.5				11.0	12.1
25–29 Mar	Pitagórica	506	27.6	7.6	39.0	10.3	6.9				8.6	11.4
6–12 Mar	Eurosondagem	1,021	26.6	8.4	36.6	11.1	6.9				10.4	10.0
8–11 Mar	Aximage	587	33.3	5.7	36.8	11.7	5.4				7.1	3.5
24 Feb–1 Mar	Pitagórica	506	28.4	8.7	37.2	10.5	4.9				10.2	8.8
9–12 Feb	Aximage	604	31.4	5.4	38.1	9.7	5.7				9.7	6.7
6–12 Feb	Eurosondagem	1,025	25.6	7.7	36.9	10.5	7.0				12.3	11.3
20–24 Jan	Pitagórica	506	25.8	7.8	37.8	11.4	6.6		Did not exist		10.6	12.0
9–15 Jan	Eurosondagem	1,010	25.0	8.0	37.5	10.4	6.6				12.5	12.5
7–10 Jan	Aximage	601	30.6	5.8	38.5	9.2	6.3				9.6	7.9
2014
10–15 Dec	Pitagórica	503	25.7	9.0	36.7	11.2	6.7	Was not polled	Did not exist	Did not exist	10.7	11.0
5–10 Dec	Eurosondagem	1,035	26.5	8.5	36.5	10.0	6.5				12.0	10.0
6–9 Dec	Aximage	609	29.6	8.3	36.4	9.7	6.3				9.7	6.8
19–21 Nov	Marktest	800	25.6	1.5	35.6	17.2	6.5				13.6	10.0
6–9 Nov	Aximage	602	28.4	9.4	36.9	10.3	6.8				8.2	8.5
30 Oct–5 Nov	Eurosondagem	1,005	25.6	8.4	37.3	11.1	5.9				11.7	11.7
22–25 Oct	Marktest	803	26.2	2.3	35.8	16.6	5.5				13.6	9.6
19–22 Oct	Aximage	607	26.9	12.1	30.2	12.4	7.2				11.2	3.3
14–19 Oct	Pitagórica	506	23.7	8.6	36.7	13.2	6.6				11.2	13.0
2–8 Oct	Eurosondagem	1,010	26.9	8.6	36.5	12.1	5.9				10.0	9.6
29 Sep 2013	2013 local elections	52.6%	31.4	3.4	36.7	11.1	2.4	0.1			14.8	5.3
28–29 Sep	Intercampus	1,000	27.0	4.0	39.0	11.0	7.0	Was not polled			12.0	12.0
26–29 Sep	Aximage	609	30.2	10.3	34.5	10.4	5.6				9.0	4.3
17–19 Sep	Marktest	801	28.5	2.5	36.6	11.5	7.3				13.6	8.1
5–11 Sep	Eurosondagem	1,038	26.5	6.5	38.0	12.5	6.5				10.0	11.5
1–3 Sep	Aximage	609	28.0	7.6	35.3	11.8	6.6				10.7	7.3
25–31 Jul	Eurosondagem	1,020	24.4	7.7	37.4	12.5	7.5				10.5	13.0
27–29 Jul	Universidade Católica	1,096	32.0	3.0	35.0	11.0	7.0				12.0	3.0
24–28 Jul	Pitagórica	507	24.1	8.1	34.6	13.1	8.7				11.4	10.5
16–18 Jul	Marktest	804	27.6	5.2	34.2	10.8	8.6				13.6	6.6
8–11 Jul	Aximage	603	28.0	5.8	37.4	10.5	6.7				11.6	9.4
5–10 Jul	Eurosondagem	1,007	25.0	8.0	37.0	12.0	8.0				10.0	12.0
28 Jun–2 Jul	Pitagórica	503	23.7	9.1	33.9	13.2	8.9				11.2	10.2
4–7 Jun	Aximage	599	23.2	9.4	35.5	11.5	8.4				12.0	12.3
30 May–4 Jun	Eurosondagem	1,028	24.8	7.7	36.9	13.0	8.0				9.6	12.1
27–30 May	Marktest	802	25.0	5.6	34.6	13.1	8.2				13.5	9.6
23–28 May	Pitagórica	506	25.4	9.5	32.7	12.6	9.4				10.4	7.3
7–10 May	Aximage	604	26.2	9.5	35.5	9.4	6.9				12.5	9.3
2–8 May	Eurosondagem	1,009	25.9	8.4	36.0	12.1	8.8				8.8	10.1
17–20 Apr	Pitagórica	503	26.9	12.0	28.6	12.8	8.7				11.0	1.7
5–10 Apr	Eurosondagem	1,025	26.5	8.5	35.0	12.5	8.5				9.0	8.5
1–4 Apr	Aximage	601	25.3	9.4	32.6	12.0	7.8				12.9	7.3
19–24 Mar	Pitagórica	503	25.7	10.6	36.7	11.2	7.9				7.9	11.0
9–11 Mar	Universidade Católica	949	28.0	5.0	31.0	12.0	8.0				16.0	3.0
4–6 Mar	Aximage	607	25.1	12.1	31.6	12.2	7.1				11.9	6.5
28 Feb–5 Mar	Eurosondagem	1,022	27.0	9.0	35.2	12.1	8.0				8.7	8.2
20–24 Feb	Pitagórica	503	26.4	10.7	35.1	10.7	8.6				8.5	8.7
5–8 Feb	Aximage	602	29.1	8.7	32.0	11.5	6.3				12.4	2.9
30 Jan–5 Feb	Eurosondagem	1,011	27.6	9.5	34.1	11.6	8.4				8.8	6.5
22–25 Jan	Pitagórica	504	28.6	10.2	33.8	12.0	8.0				7.4	5.2
15–21 Jan	Marktest	803	27.9	5.2	32.6	12.4	13.3				8.6	4.7
6–9 Jan	Aximage	603	26.3	10.3	32.9	11.8	7.4				11.3	6.6
3–8 Jan	Eurosondagem	1,010	26.9	9.6	34.3	10.3	8.8				10.1	7.4
2013
13–18 Dec	Pitagórica	511	29.0	11.4	34.6	11.2	8.4	Was not polled	Did not exist	Did not exist	5.4	5.6
5–11 Dec	Eurosondagem	1,034	26.4	10.0	34.0	11.0	9.0				9.6	7.6
4–7 Dec	Aximage	609	26.8	8.0	32.9	11.0	7.6				13.7	6.1
9–16 Nov	Pitagórica	505	26.4	9.8	36.2	9.8	7.5				10.2	9.8
7–13 Nov	Eurosondagem	1,033	26.9	10.1	35.0	10.0	9.5				8.5	8.1
30 Oct–6 Nov	Aximage	602	26.3	7.9	32.1	9.6	7.5				16.6	5.8
8–13 Oct	Pitagórica	503	29.5	8.3	34.1	9.1	7.2				11.8	4.6
4–9 Oct	Eurosondagem	1,021	30.0	10.0	34.8	9.5	7.7				8.0	4.8
1–4 Oct	Aximage	604	24.9	7.9	33.7	9.5	7.0				17.0	8.8
17–20 Sep	Marktest	805	20.2	5.2	29.6	10.1	8.6				26.3	9.4
15–17 Sep	UCP–CESOP	1,132	24.0	7.0	31.0	13.0	11.0				14.0	7.0
10–13 Sep	Eurosondagem	1,037	33.0	10.3	33.7	9.3	7.0				6.7	0.7
3–6 Sep	Aximage	600	33.3	7.1	35.4	7.7	5.3				11.2	2.1
9–14 Aug	Eurosondagem	1,011	34.1	10.1	33.0	8.8	6.6				7.4	1.1
17–20 Jul	Marktest	803	26.7	4.4	25.8	9.9	6.9				26.3	0.9
5–10 Jul	Eurosondagem	1,036	34.6	10.1	32.5	8.7	6.9				7.2	2.1
2–4 Jul	Aximage	600	35.0	7.9	30.8	7.8	5.3				13.2	4.2
19–22 Jun	Marktest	800	31.3	2.8	29.2	9.5	5.4				21.8	2.1
7–12 Jun	Eurosondagem	1,022	34.3	11.6	32.1	9.0	6.9				6.1	2.2
4–6 Jun	Aximage	600	36.6	7.5	28.2	10.1	5.0				12.6	8.4
26–28 May	UCP–CESOP	1,366	36.0	6.0	33.0	9.0	9.0				7.0	3.0
22–24 May	Marktest	807	30.4	3.5	29.1	9.6	8.5				18.9	1.3
10–15 May	Eurosondagem	1,011	34.8	11.6	31.2	8.8	6.0				7.6	3.6
2–5 May	Aximage	600	36.3	6.2	28.9	9.7	4.3				14.6	7.4
17–21 Apr	Marktest	810	31.4	3.6	25.4	10.2	7.8				21.6	6.0
11–17 Apr	Eurosondagem	1,036	35.3	10.7	30.5	9.1	6.4				8.0	4.8
3–5 Apr	Aximage	600	35.0	8.7	27.8	10.1	4.0				14.4	7.2
19–23 Mar	Marktest	802	36.5	5.2	20.5	7.6	6.3				23.9	16.0
8–13 Mar	Eurosondagem	1,021	36.0	12.0	29.6	8.5	6.9				7.0	6.4
5–7 Mar	Aximage	600	36.2	6.5	31.4	9.2	2.9				13.8	4.8
14–22 Feb	Marktest	800	30.2	3.9	25.9	9.3	6.0				24.7	4.3
2–7 Feb	Eurosondagem	1,010	35.0	11.7	30.0	8.5	6.5				8.3	5.0
1–4 Feb	Aximage	600	37.5	8.9	30.3	8.8	2.8				11.7	7.2
17–22 Jan	Marktest	800	37.6	4.0	25.2	6.1	7.7				19.4	12.4
5–10 Jan	Eurosondagem	1,064	36.4	12.1	30.3	7.7	6.4				7.1	6.1
3–6 Jan	Aximage	600	37.9	9.3	30.0	10.7	2.5				9.6	7.9
2012
7–13 Dec	Eurosondagem	1,033	36.0	12.5	30.0	8.8	6.4	Was not polled	Did not exist	Did not exist	6.3	6.0
5–8 Dec	Aximage	600	39.5	9.1	27.7	11.3	3.3				9.1	11.8
15–19 Nov	Marktest	804	45.4	5.0	19.7	7.9	4.1				17.9	25.7
10–15 Nov	Eurosondagem	1,025	36.3	12.1	29.6	9.0	6.1				6.9	6.7
7–10 Nov	Aximage	600	41.2	9.5	26.8	10.6	3.5				8.4	14.4
20–25 Oct	Eurosondagem	1,032	36.9	12.5	29.2	8.8	6.3				6.3	7.7
18–22 Oct	Marktest	809	41.6	5.3	19.7	10.5	4.2				18.7	21.9
3–5 Oct	Aximage	600	41.1	10.2	26.0	7.6	5.0				10.1	15.1
22–27 Sep	Eurosondagem	1,036	39.3	12.1	28.2	8.2	5.3				6.9	11.1
20–23 Sep	Marktest	804	47.1	6.8	23.3	4.0	2.7				16.1	23.8
10–11 Sep	UCP–CESOP	1,457	43.0	6.0	33.0	7.0	6.0				5.0	10.0
7–10 Sep	Aximage	600	40.9	7.1	25.1	9.0	3.2				14.7	15.8
26–30 Aug	Eurosondagem	1,025	39.6	12.5	26.9	8.4	5.5				7.1	12.7
14–19 Jul	Eurosondagem	1,022	40.0	13.1	26.3	8.0	5.1				7.5	13.7
5–8 Jul	Aximage	600	42.0	10.3	24.0	7.5	5.9				10.3	18.0
26–28 Jun	Eurosondagem	1,010	40.8	13.6	25.0	7.7	4.8				8.1	15.8
5 Jun 2011	2011 legislative election	58.0%	38.7	11.7	28.0	7.9	5.2	0.4			7.7	10.6

Seat projections

Opinion polls showing seat projections are displayed in the table below. The highest seat figures in each polling survey have their background shaded in the leading party's colour. In the instance that there is a tie, then no figure is shaded. 116 seats are required for an absolute majority in the Assembly of the Republic.

116 seats needed for majority

Date	Polling Firm	[a]								Others
4 Oct 2015	2015 legislative election	107		86	17	19	0	0	0	1
4 Oct	Eurosondagem	100−108		84−90	15−18	16−19	0	0−1	0−1	0
4 Oct	Intercampus	106−118		77−89	12−20	15−23	0	0−1	0	0−2
4 Oct	UCP–CESOP	108−116		80−88	13−17	16−20	0	0−1	0	0
Exit polls
24–29 Sep	Eurosondagem	102−108		89−95	19−21	10−15	0	0	0	0−1
26–27 Sep	UCP–CESOP	99−114		78−95	15−20	12−17	0	0−1	0	0−1
22–26 Sep	UCP–CESOP	117		89	16	8	0	0	1	0
21–25 Sep	UCP–CESOP	113		91	16	8	0	1	1	0
17–23 Sep	Eurosondagem	100−103		97−102	20−22	5−7	0	1	0−2	0
11–16 Sep	Eurosondagem	99−102		95−101	20−22	6−9	0	1	2	0
7–12 May	Eurosondagem	97		103	21	6	0	1	2	0
18–25 Feb	Eurosondagem[1]	98−103		100−105	18−21	4	0	1−2	2	0
18–25 Feb	Eurosondagem[2]	78−87	13−17	99−105	20−21	4−6	0	2−3	2−3	0
2015
5 Jun 2011	2011 legislative election	108	24	74	16	8	0			0

Notes

1. The Social Democratic Party (PSD) and the People's Party (CDS–PP) contested the election in a joint coalition called Portugal Ahead (Portugal à Frente).
2. This poll provides data ranges and/or approximations. In order to simplify, the average of these data is given.
3. Tracking poll.
4. Hypothesized scenario with António Costa as PS candidate.
5. Hypothesized scenario with António José Seguro as PS candidate.

References

1. Hypothesized scenario if PSD and CDS-PP contest the election in a coalition.
2. Hypothesized scenario if PSD and CDS-PP contest the election separately.

External links

• Marktest Opinion Poll Tracker
• ERC - Official publication of polls