Highest temperature in Munich on August 16?

Platform comparison

Market context

Munich's highest temperature on 16 August 2026 will be recorded at the airport weather station and resolved against Weather Underground's Daily Observations table, with settlement occurring at midday UTC. The Polymarket contract currently prices this outcome at 1% implied probability, reflecting trader consensus that extreme heat on that specific date remains unlikely. USDC collateral on Polygon underpins the conditional tokens, with resolution hinging on the precise data point from Wunderground's primary observation feed rather than summary figures.

Historical August temperatures in Munich show a median high around 24–26°C, with extremes reaching 32–34°C in particularly warm years. The 1% probability assigned here suggests traders expect the market's upper temperature brackets to remain unmet. August 2023 saw Munich reach 32.5°C on the 10th; comparable heat waves have occurred roughly once per decade, making very high readings plausible but not routine. The current pricing reflects baseline seasonal expectations rather than any forecast anomaly.

Traders monitoring this contract should track European weather forecasts from mid-July onwards, particularly those from the German Meteorological Institute (Deutscher Wetterdienst). Any Atlantic blocking pattern or heat dome developing over central Europe in early August would shift probabilities materially. Polymarket's on-chain settlement depends entirely on Wunderground's data availability; any station outages or reporting delays could affect resolution timing. The contract's reliance on airport station data—rather than city-centre observations—matters, as Munich Airport typically records slightly cooler readings than urban locations.

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

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.

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%.