Highest temperature in Munich on August 11?

Platform comparison

Market context

Munich's highest temperature on 11 August 2026 will be measured at the airport weather station and recorded in Weather Underground's Daily Observations table, with resolution tied to that specific data source rather than summary figures. The settlement window closes at midday UTC, meaning the full daily high must be captured before the market locks. For programmatic traders, this creates a dependency on real-time Weather Underground API access; conditional orders keyed to specific temperature thresholds will require reliable data feeds that distinguish between the Daily Observations granular readings and the Day High & Low summary section, which the market explicitly subordinates.

Munich's August climate typically produces highs between 24–27°C, though heat waves can push readings into the low 30s. Historical August data from the airport station shows that extreme heat events—temperatures above 32°C—occur roughly once per decade in this month, whilst readings above 28°C are common during warm summers. The current 0% crowd probability suggests the market may be pricing in a narrow or unusually cool forecast, or reflects low initial participation rather than genuine conviction about temperature bounds.

Traders should monitor European weather forecasting updates from Deutscher Wetterdienst (DWD) and ECMWF model runs in the weeks leading to 11 August, as these drive Munich's short-range temperature expectations. Heatwave alerts issued by Bavarian authorities would signal upside risk to temperature ranges. The airport station's elevation and urban heat island effects relative to surrounding areas mean that localised forecasts matter more than regional averages; automated monitoring of DWD's Munich-specific forecasts would be essential for maintaining accurate position sizing.

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

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 Review UK. 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%.