Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
32% | 68% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
32% | 68% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 27°C | 32% |
| 26°C | 23% |
| 28°C | 21% |
| 25°C | 14% |
| 29°C | 7% |
| 24°C | 5% |
| 30°C or higher | 2% |
| 23°C | 1% |
| 20°C or below | 0% |
| 21°C | 0% |
| 22°C | 0% |
Market context
Munich's weather on 20 August 2026 will be assessed against historical temperature patterns for that date and location. The settlement hinges on the highest temperature recorded in the Daily Observations table at Munich Airport Station, measured in degrees Celsius, with Weather Underground's data serving as the definitive source.
August temperatures in Munich typically range between 24–27°C as daily highs, though extremes have occasionally pushed toward 30°C during heat waves. Historical records from the past decade show that mid-August readings at Munich Airport rarely exceed 28°C, with temperatures above 30°C occurring only once every five to seven years during the summer season. The current 0% probability implied by the market suggests traders are pricing in a scenario where the temperature falls within a relatively narrow band, likely reflecting baseline seasonal expectations rather than any forecast of exceptional heat.
Traders should monitor European weather forecasting updates from late July and early August 2026, as seasonal patterns and any developing high-pressure systems could shift temperature expectations significantly. The settlement window closes at noon on 20 August, meaning morning forecasts and real-time weather developments will be critical to final positioning. Any unusual heat dome or anticyclonic system moving across central Europe in the weeks preceding the date would warrant reassessment of the current probability distribution.
Methodology
Sports-specific comparison page for Highest temperature in Munich on August 20?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- 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%.
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