Highest temperature in Milan on August 20?

Platform comparison

Market context

Milan's weather on 20 August 2026 will be determined by late-summer atmospheric conditions across northern Italy, with the highest temperature recorded at Malpensa International Airport serving as the settlement benchmark. The 0% crowd probability suggests traders are either uncertain about the specific temperature range or awaiting clearer seasonal forecasts as the date approaches.

August temperatures in Milan typically peak between 28–32°C, though extremes have reached into the mid-30s during heat waves. Historical data from Malpensa shows that mid-to-late August often coincides with the tail end of summer heat, though Mediterranean weather patterns can shift significantly year to year. The 2023 European heat wave saw Milan exceed 35°C on multiple August dates, whilst cooler years have produced highs closer to 26–28°C. Understanding the historical range is essential: the market's current probability distribution likely reflects uncertainty about whether August 2026 will track towards typical conditions or an anomalous pattern.

Traders should monitor European weather forecasting updates from mid-August onwards, particularly from Météo-France and the European Centre for Medium-Range Weather Forecasts, which typically issue reliable 10-day outlooks by early August. Any significant Atlantic weather system or high-pressure system positioning over the Mediterranean in the weeks preceding 20 August will be the primary catalyst shifting expectations. The settlement relies specifically on Weather Underground's Daily Observations table at Malpensa, so familiarity with that station's historical reporting patterns and any potential measurement anomalies will be relevant for final resolution.

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.

UK Frequently Asked Questions

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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.