Opinion Poll by Eurosondagem for Porto Canal and Sol, 7–10 December 2020
Voting Intentions | Seats | Coalitions | Technical Information
Voting Intentions

Confidence Intervals
| Party | Last Result | Poll Result | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|
| Partido Socialista | 36.4% | 38.8% | 36.9–40.8% | 36.4–41.4% | 35.9–41.9% | 35.0–42.8% |
| Partido Social Democrata | 27.8% | 29.4% | 27.6–31.3% | 27.1–31.8% | 26.7–32.3% | 25.8–33.2% |
| Bloco de Esquerda | 9.5% | 7.2% | 6.2–8.3% | 5.9–8.6% | 5.7–8.9% | 5.3–9.5% |
| Coligação Democrática Unitária | 6.3% | 5.3% | 4.5–6.3% | 4.3–6.6% | 4.1–6.9% | 3.7–7.4% |
| Chega | 1.3% | 5.2% | 4.4–6.2% | 4.2–6.5% | 4.0–6.7% | 3.6–7.3% |
| CDS–Partido Popular | 4.2% | 2.5% | 2.0–3.3% | 1.9–3.5% | 1.7–3.7% | 1.5–4.1% |
| Pessoas–Animais–Natureza | 3.3% | 2.0% | 1.5–2.7% | 1.4–2.8% | 1.3–3.0% | 1.1–3.4% |
| Iniciativa Liberal | 1.3% | 1.1% | 0.8–1.6% | 0.7–1.8% | 0.6–1.9% | 0.5–2.2% |
Note: The poll result column reflects the actual value used in the calculations. Published results may vary slightly, and in addition be rounded to fewer digits.
Seats


Confidence Intervals
| Party | Last Result | Median | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|
| Partido Socialista | 108 | 112 | 107–119 | 105–120 | 103–122 | 99–124 |
| Partido Social Democrata | 79 | 82 | 77–88 | 75–90 | 74–91 | 72–95 |
| Bloco de Esquerda | 19 | 14 | 10–16 | 10–17 | 8–18 | 7–19 |
| Coligação Democrática Unitária | 12 | 8 | 7–11 | 6–13 | 5–13 | 5–15 |
| Chega | 1 | 8 | 4–11 | 4–11 | 4–11 | 4–12 |
| CDS–Partido Popular | 5 | 1 | 1–2 | 1–3 | 0–4 | 0–5 |
| Pessoas–Animais–Natureza | 4 | 2 | 1–2 | 1–3 | 0–3 | 0–4 |
| Iniciativa Liberal | 1 | 1 | 0–1 | 0–2 | 0–2 | 0–3 |
Partido Socialista
For a full overview of the results for this party, see the Partido Socialista page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 96 | 0% | 100% | |
| 97 | 0.2% | 99.9% | |
| 98 | 0.1% | 99.7% | |
| 99 | 0.1% | 99.6% | |
| 100 | 0.2% | 99.5% | |
| 101 | 0.3% | 99.2% | |
| 102 | 0.3% | 99.0% | |
| 103 | 1.2% | 98.6% | |
| 104 | 0.9% | 97% | |
| 105 | 3% | 96% | |
| 106 | 3% | 94% | |
| 107 | 5% | 91% | |
| 108 | 6% | 86% | Last Result |
| 109 | 4% | 80% | |
| 110 | 8% | 75% | |
| 111 | 9% | 67% | |
| 112 | 8% | 58% | Median |
| 113 | 6% | 50% | |
| 114 | 9% | 44% | |
| 115 | 7% | 34% | |
| 116 | 5% | 28% | Majority |
| 117 | 7% | 23% | |
| 118 | 3% | 16% | |
| 119 | 4% | 12% | |
| 120 | 4% | 9% | |
| 121 | 1.4% | 5% | |
| 122 | 3% | 4% | |
| 123 | 0.3% | 1.0% | |
| 124 | 0.4% | 0.7% | |
| 125 | 0.2% | 0.3% | |
| 126 | 0% | 0.1% | |
| 127 | 0% | 0.1% | |
| 128 | 0% | 0% |
Partido Social Democrata
For a full overview of the results for this party, see the Partido Social Democrata page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 68 | 0% | 100% | |
| 69 | 0% | 99.9% | |
| 70 | 0.1% | 99.9% | |
| 71 | 0.1% | 99.8% | |
| 72 | 0.4% | 99.7% | |
| 73 | 0.6% | 99.3% | |
| 74 | 2% | 98.7% | |
| 75 | 2% | 97% | |
| 76 | 3% | 95% | |
| 77 | 4% | 92% | |
| 78 | 6% | 87% | |
| 79 | 5% | 82% | Last Result |
| 80 | 7% | 76% | |
| 81 | 11% | 69% | |
| 82 | 9% | 59% | Median |
| 83 | 9% | 49% | |
| 84 | 8% | 40% | |
| 85 | 9% | 32% | |
| 86 | 9% | 24% | |
| 87 | 3% | 14% | |
| 88 | 3% | 11% | |
| 89 | 4% | 9% | |
| 90 | 2% | 5% | |
| 91 | 1.2% | 3% | |
| 92 | 0.6% | 2% | |
| 93 | 0.4% | 1.2% | |
| 94 | 0.3% | 0.8% | |
| 95 | 0.1% | 0.5% | |
| 96 | 0.1% | 0.4% | |
| 97 | 0.1% | 0.3% | |
| 98 | 0.1% | 0.2% | |
| 99 | 0% | 0.1% | |
| 100 | 0.1% | 0.1% | |
| 101 | 0% | 0% |
Bloco de Esquerda
For a full overview of the results for this party, see the Bloco de Esquerda page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 7 | 0.7% | 100% | |
| 8 | 3% | 99.3% | |
| 9 | 1.2% | 97% | |
| 10 | 5% | 95% | |
| 11 | 10% | 90% | |
| 12 | 8% | 80% | |
| 13 | 14% | 72% | |
| 14 | 11% | 58% | Median |
| 15 | 29% | 48% | |
| 16 | 13% | 19% | |
| 17 | 2% | 6% | |
| 18 | 2% | 5% | |
| 19 | 2% | 2% | Last Result |
| 20 | 0.1% | 0.2% | |
| 21 | 0.1% | 0.1% | |
| 22 | 0% | 0% |
Coligação Democrática Unitária
For a full overview of the results for this party, see the Coligação Democrática Unitária page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 5 | 3% | 100% | |
| 6 | 6% | 97% | |
| 7 | 25% | 91% | |
| 8 | 26% | 66% | Median |
| 9 | 19% | 40% | |
| 10 | 7% | 21% | |
| 11 | 5% | 14% | |
| 12 | 4% | 9% | Last Result |
| 13 | 3% | 5% | |
| 14 | 2% | 2% | |
| 15 | 0.6% | 0.9% | |
| 16 | 0.3% | 0.3% | |
| 17 | 0% | 0% |
Chega
For a full overview of the results for this party, see the Chega page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 1 | 0% | 100% | Last Result |
| 2 | 0% | 100% | |
| 3 | 0.3% | 100% | |
| 4 | 10% | 99.7% | |
| 5 | 6% | 89% | |
| 6 | 4% | 83% | |
| 7 | 11% | 79% | |
| 8 | 42% | 68% | Median |
| 9 | 6% | 26% | |
| 10 | 6% | 20% | |
| 11 | 14% | 14% | |
| 12 | 0.5% | 0.7% | |
| 13 | 0.2% | 0.2% | |
| 14 | 0% | 0.1% | |
| 15 | 0% | 0% |
CDS–Partido Popular
For a full overview of the results for this party, see the CDS–Partido Popular page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 3% | 100% | |
| 1 | 49% | 97% | Median |
| 2 | 42% | 48% | |
| 3 | 2% | 6% | |
| 4 | 4% | 5% | |
| 5 | 0.5% | 0.5% | Last Result |
| 6 | 0% | 0% |
Pessoas–Animais–Natureza
For a full overview of the results for this party, see the Pessoas–Animais–Natureza page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 4% | 100% | |
| 1 | 45% | 96% | |
| 2 | 44% | 51% | Median |
| 3 | 6% | 7% | |
| 4 | 1.1% | 1.1% | Last Result |
| 5 | 0% | 0% |
Iniciativa Liberal
For a full overview of the results for this party, see the Iniciativa Liberal page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 29% | 100% | |
| 1 | 66% | 71% | Last Result, Median |
| 2 | 3% | 5% | |
| 3 | 2% | 2% | |
| 4 | 0% | 0% |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Partido Socialista – Bloco de Esquerda – Coligação Democrática Unitária | 139 | 135 | 100% | 129–141 | 127–142 | 126–143 | 122–145 |
| Partido Socialista – Bloco de Esquerda | 127 | 126 | 98.7% | 120–133 | 119–134 | 117–135 | 113–137 |
| Partido Socialista – Coligação Democrática Unitária | 120 | 121 | 87% | 115–128 | 113–129 | 112–131 | 108–132 |
| Partido Socialista | 108 | 112 | 28% | 107–119 | 105–120 | 103–122 | 99–124 |
| Partido Social Democrata – CDS–Partido Popular | 84 | 84 | 0% | 78–90 | 77–91 | 76–93 | 73–96 |
Partido Socialista – Bloco de Esquerda – Coligação Democrática Unitária

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 117 | 0.1% | 100% | |
| 118 | 0.1% | 99.9% | |
| 119 | 0% | 99.8% | |
| 120 | 0.1% | 99.8% | |
| 121 | 0.2% | 99.7% | |
| 122 | 0.2% | 99.6% | |
| 123 | 0.3% | 99.4% | |
| 124 | 0.5% | 99.1% | |
| 125 | 1.0% | 98.6% | |
| 126 | 0.7% | 98% | |
| 127 | 3% | 97% | |
| 128 | 3% | 94% | |
| 129 | 4% | 92% | |
| 130 | 4% | 88% | |
| 131 | 7% | 83% | |
| 132 | 7% | 77% | |
| 133 | 8% | 69% | |
| 134 | 8% | 62% | Median |
| 135 | 9% | 54% | |
| 136 | 11% | 44% | |
| 137 | 6% | 34% | |
| 138 | 4% | 28% | |
| 139 | 7% | 24% | Last Result |
| 140 | 6% | 17% | |
| 141 | 3% | 12% | |
| 142 | 4% | 8% | |
| 143 | 2% | 4% | |
| 144 | 1.0% | 2% | |
| 145 | 0.8% | 1.3% | |
| 146 | 0.2% | 0.5% | |
| 147 | 0.1% | 0.2% | |
| 148 | 0.1% | 0.2% | |
| 149 | 0% | 0.1% | |
| 150 | 0% | 0% |
Partido Socialista – Bloco de Esquerda

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 108 | 0% | 100% | |
| 109 | 0.1% | 99.9% | |
| 110 | 0.1% | 99.9% | |
| 111 | 0.1% | 99.8% | |
| 112 | 0.1% | 99.7% | |
| 113 | 0.2% | 99.6% | |
| 114 | 0.3% | 99.4% | |
| 115 | 0.4% | 99.1% | |
| 116 | 0.6% | 98.7% | Majority |
| 117 | 0.6% | 98% | |
| 118 | 2% | 97% | |
| 119 | 2% | 95% | |
| 120 | 4% | 94% | |
| 121 | 3% | 89% | |
| 122 | 4% | 86% | |
| 123 | 11% | 82% | |
| 124 | 6% | 71% | |
| 125 | 6% | 65% | |
| 126 | 11% | 59% | Median |
| 127 | 8% | 48% | Last Result |
| 128 | 6% | 40% | |
| 129 | 9% | 34% | |
| 130 | 5% | 24% | |
| 131 | 5% | 20% | |
| 132 | 4% | 14% | |
| 133 | 4% | 10% | |
| 134 | 2% | 6% | |
| 135 | 2% | 4% | |
| 136 | 0.8% | 2% | |
| 137 | 0.7% | 1.0% | |
| 138 | 0.2% | 0.3% | |
| 139 | 0.1% | 0.1% | |
| 140 | 0% | 0.1% | |
| 141 | 0% | 0.1% | |
| 142 | 0% | 0% |
Partido Socialista – Coligação Democrática Unitária

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 104 | 0% | 100% | |
| 105 | 0.1% | 99.9% | |
| 106 | 0.2% | 99.8% | |
| 107 | 0.1% | 99.7% | |
| 108 | 0.2% | 99.6% | |
| 109 | 0.1% | 99.4% | |
| 110 | 0.3% | 99.3% | |
| 111 | 0.6% | 98.9% | |
| 112 | 1.0% | 98% | |
| 113 | 2% | 97% | |
| 114 | 4% | 95% | |
| 115 | 4% | 91% | |
| 116 | 3% | 87% | Majority |
| 117 | 7% | 85% | |
| 118 | 9% | 77% | |
| 119 | 8% | 68% | |
| 120 | 4% | 61% | Last Result, Median |
| 121 | 10% | 56% | |
| 122 | 9% | 47% | |
| 123 | 7% | 38% | |
| 124 | 8% | 31% | |
| 125 | 4% | 23% | |
| 126 | 4% | 19% | |
| 127 | 4% | 15% | |
| 128 | 4% | 11% | |
| 129 | 2% | 7% | |
| 130 | 2% | 5% | |
| 131 | 1.2% | 3% | |
| 132 | 1.2% | 2% | |
| 133 | 0.2% | 0.4% | |
| 134 | 0.1% | 0.2% | |
| 135 | 0% | 0.1% | |
| 136 | 0% | 0.1% | |
| 137 | 0% | 0.1% | |
| 138 | 0% | 0% |
Partido Socialista

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 96 | 0% | 100% | |
| 97 | 0.2% | 99.9% | |
| 98 | 0.1% | 99.7% | |
| 99 | 0.1% | 99.6% | |
| 100 | 0.2% | 99.5% | |
| 101 | 0.3% | 99.2% | |
| 102 | 0.3% | 99.0% | |
| 103 | 1.2% | 98.6% | |
| 104 | 0.9% | 97% | |
| 105 | 3% | 96% | |
| 106 | 3% | 94% | |
| 107 | 5% | 91% | |
| 108 | 6% | 86% | Last Result |
| 109 | 4% | 80% | |
| 110 | 8% | 75% | |
| 111 | 9% | 67% | |
| 112 | 8% | 58% | Median |
| 113 | 6% | 50% | |
| 114 | 9% | 44% | |
| 115 | 7% | 34% | |
| 116 | 5% | 28% | Majority |
| 117 | 7% | 23% | |
| 118 | 3% | 16% | |
| 119 | 4% | 12% | |
| 120 | 4% | 9% | |
| 121 | 1.4% | 5% | |
| 122 | 3% | 4% | |
| 123 | 0.3% | 1.0% | |
| 124 | 0.4% | 0.7% | |
| 125 | 0.2% | 0.3% | |
| 126 | 0% | 0.1% | |
| 127 | 0% | 0.1% | |
| 128 | 0% | 0% |
Partido Social Democrata – CDS–Partido Popular

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 70 | 0% | 100% | |
| 71 | 0% | 99.9% | |
| 72 | 0.1% | 99.9% | |
| 73 | 0.3% | 99.8% | |
| 74 | 0.5% | 99.5% | |
| 75 | 0.8% | 99.0% | |
| 76 | 2% | 98% | |
| 77 | 3% | 96% | |
| 78 | 5% | 94% | |
| 79 | 5% | 89% | |
| 80 | 6% | 84% | |
| 81 | 4% | 78% | |
| 82 | 9% | 74% | |
| 83 | 9% | 65% | Median |
| 84 | 13% | 56% | Last Result |
| 85 | 7% | 43% | |
| 86 | 6% | 37% | |
| 87 | 13% | 31% | |
| 88 | 5% | 18% | |
| 89 | 2% | 13% | |
| 90 | 4% | 10% | |
| 91 | 3% | 6% | |
| 92 | 1.2% | 4% | |
| 93 | 1.0% | 3% | |
| 94 | 0.7% | 2% | |
| 95 | 0.2% | 0.9% | |
| 96 | 0.2% | 0.7% | |
| 97 | 0.1% | 0.5% | |
| 98 | 0.1% | 0.4% | |
| 99 | 0.1% | 0.3% | |
| 100 | 0.1% | 0.2% | |
| 101 | 0.1% | 0.1% | |
| 102 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: Eurosondagem
- Commissioner(s): Porto Canal and Sol
- Fieldwork period: 7–10 December 2020
Calculations
- Sample size: 1020
- Simulations done: 1,048,576
- Error estimate: 0.82%