🏛️ Politics · Next Month

Swedish Riksdag election (13 September 2026): Social Democrats (S) receive more than 30.0% of votes cast (confirmed by Valmyndigheten)

Miss ✦ AI-generated prediction Published on 24. August 2026 · Predicted for 13. September 2026 · Based on: Historical Cycle

Probability

62%

Social Democrats poll at 30.5% in the PolitPro Election Trend and at a 30-day average of 31.8% (Polara.se, August 2026). The party benefits from incumbent fatigue against the Kristersson government (M/SD/KD/L) and strong competency perceptions on social and economic issues. The left bloc (S + V + MP) polls at 46.5% and is likely to enable government formation. The 30.0% threshold is near the lower polling range; historically Swedish polls slightly underestimate S by 1-2 percentage points. Liberalerna likely fails the threshold (separate open Cassandra prediction). No Polymarket market for this exact threshold.

Data basis for this prediction

PolitPro Election Trend Schweden: Socialdemokraterna 30,5% (Stand August 2026, politpro.eu)
Polara.se: Socialdemokraterna 31,8% im 30-Tage-Schnitt; Linksblock 46,5% (August 2026)
Wikipedia: Riksdag-Wahl Schweden, 13. September 2026 – Projektierte S-Sitze: 110 von 349
Valmyndigheten (Wahlbehörde Schweden): Offizielles Ergebnis nach Auszählung (13. September 2026)

Verdict: Miss

Socialdemokraterna erhielt laut Valmyndigheten 28,02 % der Stimmen (99 Sitze, 1.886.535 Stimmen) – deutlich unter der Schwelle von 30,0 %. Die Partei verlor sogar 2,3 Prozentpunkte gegenüber 2022. Die Umfragen (PolitPro 30,5 %, Polara 31,8 %) überschätzten S in diesem Zyklus, entgegen der historischen Annahme einer leichten Unterschätzung. Der Linksblock gewann dennoch mit 176:173 Sitzen knapp die Mehrheit. Quellen: val.se (Valmyndigheten), Wikipedia '2026 Swedish general election', Euronews 2026-09-17.

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