Highest temperature in Seoul on July 5?

Platform comparison

Market context

Seoul is preparing for a peak heat day in early July, with the Incheon International Airport station expected to record its highest temperature for 5 July 2026. Historical data shows that early July in Seoul typically sees daily highs rising from 81°F to 85°F (27°C to 29°C), rarely dropping below 74°F or exceeding 91°F [2]. The average high temperature centres around 27°C, though humidity often makes afternoons feel significantly warmer [3]. Notably, July 2025 was South Korea’s second-hottest July on record, with a nationwide average of 27.1°C, just behind the 1994 peak of 27.7°C [1]. In 2023, Seoul itself hit 37.7°C in early July—the highest such reading in 117 years of records [7]. These comparable cases suggest that while extreme heat is possible, the current 0% crowd-implied probability for a specific high range may reflect uncertainty rather than impossibility.

Traders should monitor real-time updates from Wunderground, the official resolution source, as the settlement window closes at 12:00 UTC on 5 July 2026. Key dependencies include the timing of the heatwave’s peak and whether tropical nights persist, as July 2023 marked the longest stretch of such nights in Seoul for 117 years [8]. The North Pacific high-pressure system is the primary driver of summer heat, occasionally pushing temperatures to 35°C or higher [9]. No recent coaching changes or team absences apply here, but weather alerts from the Korea Meteorological Administration could signal shifts in forecast accuracy [1]. Watch for announcements on humidity levels and solar energy, which remain essentially constant at 5.8 kWh throughout July [2]. These factors will determine whether the day reaches record-breaking highs or stays within typical seasonal bounds.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Seoul on July 5?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

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FAQ

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