Highest temperature in Istanbul on July 22?

Platform comparison

Market context

The real-world event is the day’s top air temperature at Istanbul Airport, measured by NOAA and settled from the highest value in the “Temp” column once the 22 July data are complete. A 0% crowd-implied chance on any specific band is therefore more a sign of a hard-to-price, data-dependent weather outcome than a settled expectation, especially with the final reading only confirmed after the next day’s first observation is published.

For context, Istanbul in July usually sits in the upper 20s Celsius, with typical daytime highs around 29°C and nights near 21°C, so a high-end summer reading is not unusual even if the exact peak is volatile from one day to the next.[1] That makes comparable warm-season cases the right frame: markets on daily temperature thresholds tend to move only when the forecast converges on a clear heat signal, while a broader range of possible outcomes can leave pricing thin until late in the day.

The main catalyst is the short-range forecast, not politics-style signalling: traders will watch the latest synoptic update for the Marmara region, especially whether a warm ridge, cloud cover, sea breeze, or passing showers alters the expected afternoon peak. The market is leaning on the final NOAA observations rather than any scheduled announcement, so the decisive move usually comes from the day’s weather evolution and the timing of the last published station reading rather than from a separate news event.[1]

Sources: 1

Methodology

This page tracks Highest temperature in Istanbul on July 22? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.