Highest temperature in Munich on July 1?

Platform comparison

Market context

The underlying real-world event is whether Munich Airport will record a temperature in the highest Celsius range on 1 July 2026, a threshold that current Polymarket pricing deems virtually impossible at 0% YES. On the Polygon network, this conditional token contract trades in USDC, reflecting a market consensus that Munich’s July highs rarely breach the extreme upper bounds seen elsewhere in Europe. Historical data shows Munich’s daily highs in July average 25–26°C, rarely exceeding 37°C, with the 87°F (30.5°C) ceiling being a statistical outlier rather than a norm[2][10]. Even during Europe’s record-breaking 2022 heatwave, when Germany hit 40.5°C in Geilenkirchen, Munich’s peak remained significantly lower, underscoring the city’s climatic buffer against extreme heat[1].

Traders should monitor the German Meteorological Service (DWD) forecasts for the next 24 hours, particularly any announcements of high-pressure systems like “Yvonne” that could push temperatures beyond 37°C. The settlement window closes on 1 July 2026 at 12:00 UTC, with Wunderground serving as the official resolution source[1]. Recent DWD warnings indicate moderate high-temperature alerts for Bavaria, but no extreme heatwave is currently forecast for Munich[9]. The key dependency is whether a sudden shift in atmospheric pressure occurs before the settlement deadline, as even a 2°C spike above the 37°C threshold would invalidate the 0% probability. No extreme heat announcements have been issued for Munich as of this morning, reinforcing the market’s zero-confidence stance[3][4].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Scam?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.