Highest temperature in Istanbul on July 27?

Platform comparison

Market context

On 27 July 2026, Istanbul Airport will record its daily maximum temperature, and Polymarket is currently pricing any outcome at 0% YES across all temperature bands—a reflection of settlement uncertainty rather than meteorological impossibility. The NOAA station at Atatürk International Airport (LTFM) provides the official measurement, with resolution contingent on data publication and the appearance of the first reading for 28 July. Traders holding conditional tokens on this contract face a timing risk: the market cannot settle until the following day's data arrives, creating a lag between the actual weather event and final resolution.

Istanbul's July climate sits at the tail end of the city's hot season, with historical daily maxima typically ranging between 28–32°C. The 0% crowd probability suggests either minimal trading activity or genuine hesitation about data availability rather than scepticism about whether temperatures will fall within expected ranges. Comparable NOAA weather markets have resolved without incident, though delays in meteorological data publication have occasionally extended settlement windows by 24–48 hours.

Traders should monitor NOAA's publication schedule and any disruptions to the Istanbul Airport weather station. Turkish summer heat waves occasionally push temperatures above 35°C, particularly during mid-to-late July, though such extremes remain statistically uncommon for this specific date. The conditional token mechanics on Polygon mean positions remain locked until settlement, so liquidity and entry timing carry weight for anyone building exposure to this contract.

Methodology

We track Highest temperature in Istanbul on July 27? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Scam? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.