Highest temperature in Munich on August 21?

Platform comparison

Market context

On 21 August 2026, Munich Airport Station will record a daily maximum temperature in Celsius, with traders currently pricing zero probability that this figure lands in the highest available range bracket. The market resolves using Weather Underground's Daily Observations table rather than summary figures, a distinction that matters when automated stations report sub-hourly peaks that don't always surface in rounded daily summaries. Settlement occurs at 12:00 UTC on the resolution date, giving the market a hard deadline before afternoon heat typically peaks across Bavaria.

Historical August temperatures at Munich Airport show considerable variability. The station's records indicate August highs typically range between 24–28°C, though extremes have reached 32°C during European heat waves. The 2022 summer heatwave pushed several German stations into the low-30s range, whilst cooler Augusts have seen maxima below 22°C. Current crowd pricing at 0% suggests traders view the highest bracket as statistically improbable rather than impossible, reflecting baseline expectations that August 2026 will track within normal seasonal bounds rather than produce an outlier event.

Traders monitoring this contract should track European weather forecasting updates from mid-August onwards, particularly any signals from the German Meteorological Service (Deutscher Wetterdienst) indicating high-pressure systems or heat dome formation over Central Europe. Seasonal patterns matter: August typically sees warmer conditions than June or July in Munich, but sustained heat waves require specific atmospheric configurations. The USDC settlement on Polygon means positions can be hedged or exited via secondary markets as the event date approaches and meteorological certainty increases.

Methodology

This page reviews Highest temperature in Munich on August 21? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

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 PolyGram. 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.

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%.