Election forecast · 26 September 2027

Lower Saxony state election 2027 forecast: who is ahead?

Lower Saxony state election on 26 September 2027. Polls as of 11 September 2026, 1 pollsters. SPD leads with 26.0%; SPD remains the strongest party in 81% of simulated outcomes. Polls are not a prediction but a snapshot of today's mood. How far they typically still move before the election is shown further down.

Days to the election
368
26 September 2027
Polls since the last election
13
since 9 Oct 2022
Strongest party
SPD
in 81% of 3,000 simulations
Most likely two-party coalition
SPD + CDU
70% of simulations
Starting point

If the state election were held today

Unweighted average of the latest poll from each pollster within the last 120 days, compared with the result of the last election on 9 Oct 2022.

Lower Saxony state election 2027 forecast: Polling
Average of each pollster's latest poll, shares in percent
  • SPD26.0%-7.4
  • CDU22.0%-6.1
  • AfD21.0%+10.1
  • Grüne15.0%+0.5
  • Linke6.0%+3.3
  • FDP5.0%+0.3
  • BSW3.0%
  • Others2.0%-3.7

Dashed line: electoral threshold of 5%. Lighter area: statistical margin of error of a single poll. Change compared with the election result of 9 Oct 2022.

Wahlergebnisse.io© 2026Source: dawum.de (ODbL) · As of: 11 Sep 2026
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All polls, house effects and details for the state election

Seat projection

What the Landtag of Lower Saxony would look like today

135 seats by Sainte-Laguë/Schepers, without overhang and levelling seats. Electoral threshold 5%. The incumbent government of SPD and Grüne would hold 58 of 135 seats today and would no longer have a majority.

Lower Saxony state election 2027 forecast: Seat projection
Projected seat distribution based on the polling average
SPD: 37 seatsCDU: 31 seatsAfD: 30 seatsGrüne: 21 seatsLinke: 9 seatsFDP: 7 seatsMajority from 68135of 135 seats
  • SPD37
  • CDU31
  • AfD30
  • Grüne21
  • Linke9
  • FDP7
Wahlergebnisse.io© 2026Source: dawum.de (ODbL) · As of: 11 Sep 2026
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Lower Saxony state election 2027 forecast: Coalition calculator
Seats based on the polling average, tap parties to test an alliance
Coalition calculator: tap the parties
SPD + Grüne
SPD: 37 seatsGrüne: 21 seatsCDU: 31 seatsAfD: 30 seatsLinke: 9 seatsFDP: 7 seats58/135
10 seats short of a majority
Projected seat distribution with 135 seats, majority from 68.
Wahlergebnisse.io© 2026Source: dawum.de (ODbL) · As of: 11 Sep 2026
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  • SPD + GrüneGovernment, no majority58 of 135
  • SPD + CDU68 of 135
  • SPD + AfD + Grüne88 of 135
  • CDU + AfD + Grüne82 of 135
  • SPD + AfD + Linke76 of 135
  • SPD + AfD + FDP74 of 135
  • CDU + AfD + Linke70 of 135
  • CDU + AfD + FDP68 of 135
Simulation

How likely are the majorities?

The seat projection is recalculated 3,000 times with randomly varied polling figures. The spread per party follows from sampling error and from how far polls have missed that party at earlier elections. This is the uncertainty of the polls today, not the uncertainty up to polling day.

Lower Saxony state election 2027 forecast: Probabilities of a majority
Share of simulations in which an alliance holds a majority

Majority in parliament

  • SPD + GrüneGovernment7%
  • SPD + CDU70%
  • SPD + AfD + Grüneover 99%
  • CDU + AfD + Grüneover 99%
  • SPD + AfD + Linke95%
  • SPD + AfD + FDP87%
  • CDU + AfD + Linke69%
  • CDU + AfD + FDP49%
  • SPD + AfD59%
  • CDU + AfD19%
  • CDU + Grüneunder 1%
  • AfD + Grüneunder 1%

Clearing the electoral threshold

  • BSW 1.4)7%
  • FDP 1.2)51%
  • Linke 1.9)70%

Largest party

  • SPD81%
  • CDU14%
  • AfD5%

3,000 simulations. Spread per party from the sampling error of the average and the historical deviation of polls from election results. Method.

Wahlergebnisse.io© 2026Source: dawum.de (ODbL) · As of: 11 Sep 2026
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Our analysis

How reliable is a forecast 368 days before the election?

For every election since 2017 we calculated the polling average as it stood 7 days to 2 years before polling day and compared it with the official result. Deviation per party is the average across all parties at an election; largest deviation is the party that was furthest off.

At the current lead time of 368 days, polling averages at 25 elections were off by 4.5 points per party on average, and by 9.8 points for the party missed most. SPD's lead is within this range, so the lead is not secure.

Accuracy of polling averages by lead time to the election, all elections since 2017
Lead timeElectionsDeviation per partyLargest deviation
7 days38± 1.6 points± 4.0 points
1 month37± 2.3 points± 5.8 points
3 months36± 2.9 points± 7.0 points
6 months34± 3.5 points± 8.0 points
1 year31± 3.9 points± 8.7 points
2 yearsnow25± 4.5 points± 9.8 points

Only elections in Lower Saxony since 2017

Accuracy before Lower Saxony state elections since 2017
Lead timeElectionsDeviation per partyLargest deviation
7 days2± 1.5 points± 4.0 points
1 month2± 2.3 points± 5.7 points
3 months2± 2.3 points± 5.9 points
6 months1± 2.2 points± 4.4 points
1 year1± 3.6 points± 5.3 points
2 yearsnow1± 3.0 points± 5.9 points

Which pollster is most accurate? · Method

Trend

What has shifted since the last election

Polling trend since 9 October 2022. The “Change” view shows gains and losses since the start of the period.

Lower Saxony state election 2027 forecast: Polling trend
Rolling average and individual polls, shares in percent
010203040Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26SPDCDUAfDGrüneLinkeFDPBSW
Dots are individual polls, lines the rolling average over 120 days. Period 8 Nov 2024 to 11 Sep 2026. Tap the tiles to hide parties.
Wahlergebnisse.io© 2026Source: dawum.de (ODbL) · As of: 11 Sep 2026
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Context

What this forecast can and cannot do

An election poll measures the mood at the time of fieldwork. A forecast in the strict sense only exists on election night at 6 pm, from the exit polls. Everything before that is a projection of the polls: we show what the current figures would mean, and how large the error of such projections has been in the past.

Lead candidates, coalition statements and issues can change before the 2027 state election. Shortly before the election, polls become more frequent and more accurate; this page updates automatically with every new poll.

Source of the polls: dawum.de (Open Database License). Averages, seats, probabilities and accuracy are our own calculations at wahlergebnisse.io.

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