Highest temperature in Istanbul on July 22?

Platform comparison

Market context

Istanbul Airport’s heat on 22 July will be judged by the single highest NOAA temperature reading during the day, so the relevant question is whether the airport briefly pushes into the low 30s Celsius rather than where the daily average lands. At this point the crowd has shifted sharply towards a **31°C** outcome, which is priced at **90%**, with **32°C** at **10%**.[1] That is a useful signal because the market is not asking for a forecast of the afternoon high in the city centre, but for the maximum value captured in NOAA’s hourly table at LTFM, which can still move if late-day observations edge higher.

For context, July in Istanbul is normally hot but not extreme: typical highs are around **29°C** and lows around **21°C**.[2] That means a 31°C print is only modestly above the usual July high, while 32°C would represent a more notable overshoot. In comparable summer setups, markets on airport temperature ranges tend to concentrate on the most common round-number band unless there is a clear heat event, because the final settlement depends on the highest observed reading rather than a forecast headline.

The main catalyst is the published NOAA temperature series itself, because this market cannot resolve until the first data point for the following date is available. Traders are therefore leaning on the live observation path rather than on later reinterpretation, and the key watchpoint is whether any late-day update at Istanbul Airport nudges the maximum from 31°C to 32°C or higher.[1] Weather context from July climatology suggests the 31°C band is already a plausible ceiling without a strong heat surge, which helps explain why the crowd has not priced a broader spread.[2]

Sources: 1 · 2

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Istanbul on July 22? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

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 Trump Prediction 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.