Highest temperature in Milan on August 10?

Platform comparison

Market context

Milan’s **highest temperature on 10 August** is a late-summer heat bet, and the market’s **0% YES** implies the crowd is effectively pricing the outcome as if the relevant reading will not land in the target range. Historical August readings for Milan sit around the high-20s Celsius, with average highs commonly near **28–30°C**, while published August forecast pages also show plenty of days that can push into the low-30s.[1][3][11][13] On that basis, the favourite in a normal August setup is still the hotter outcome, so the current zero price looks like a clear underdog position rather than a neutral one.[1][3][11]

For handicapping, the main comparables point to a market that should not be anchored too tightly to the daily-summary figure, because settlement uses the **Daily Observations** table for the **Malpensa Intl Airport Station** reading.[2] That matters because airport stations can run a touch differently from city-centre forecasts, and intraday peaks in Milan often depend on sunshine, cloud cover and any afternoon convection rather than the headline morning forecast alone.[2][17] If the day turns out hotter than the consensus expects, the value would sit with the upper temperature bands; if clouds or a storm line cap the maximum earlier than forecast, the contrarian angle is that the market’s 0% YES may be less absurd than it looks.[2][17]

The key catalysts are the live observation path and any short-notice forecast changes before the settlement window closes at **12:00 UTC**, because the result depends on the single highest recorded temperature in the table, not the day’s summary high.[2] Traders should watch the station’s rolling observations, nearby airport feeds, and any updated forecast runs for Milan that flag afternoon heating or thunderstorm risk; the Met Office’s recent Milano/Linate observations show how quickly temperatures can climb into the mid-30s Celsius on a hot day.[17] That makes the favourite/underdog split very binary: a warm, stable afternoon would favour the upper range, while cloud build-up or rain would favour the lower bands.[2][17]

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

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.

UK Frequently Asked Questions

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.

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%.