Pronóstico: Highest temperature in Istanbul on July 22?

Platform comparison

Market context

Istanbul’s airport heat profile in late July is normally well above the mild-to-warm range that would sit close to the lower bands of this market. Typical July highs are around 29°C, with long sunny spells and moderate humidity, so the more relevant comparison is not whether the day gets warm, but whether it stays below the upper-20s or pushes into the low 30s. [1]

For trading, the main reference point is historical summer seasonality rather than day-to-day weather noise: Istanbul often sits in a narrow corridor around the high-20s Celsius in July, so a 0% yes price implies the market is treating an unusually hot reading as highly unlikely. The key thing is the official NOAA airport time series for Istanbul Airport, because the contract settles on the highest observed temperature there on the day, not on city-wide conditions or forecast headlines. [1]

What can move the line is a late-day warm-up, clear skies, or a broader regional heat pattern that keeps the airport’s maximum temperature rising into the afternoon before the final reading is posted. Because the market cannot resolve until NOAA publishes the first point for the following date, the last update on the 22nd matters most, especially if the daily peak arrives late or if the table’s Celsius switch confirms a new high close to the cutoff bands.

Sources: 1

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Istanbul on July 22?. 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 (US-focused) or Manifold (play-money).

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