Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
67% | 33% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
67% | 33% | 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 |
|---|---|
| 33°C | 67% |
| 34°C | 21% |
| 32°C | 13% |
| 35°C | 3% |
| 31°C | 2% |
| 30°C or below | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C | 0% |
| 40°C or higher | 0% |
Market context
Munich Airport’s August temperature profile is firmly in late-summer territory, with a long-run average high around 24–25°C and a record August peak of 37°C, so a zero-price for a “yes” outcome implies the market is treating a very warm day as unlikely rather than impossible.[1][15] The settlement rule matters: this market resolves off the *Daily Observations* table on Weather Underground, not the summary “Day High & Low”, so traders should watch the highest single reading in the station log rather than the headline daily maximum.[3]
Historical August data show that Munich can produce sharp excursions above average, but they are concentrated in a small number of heatwave years, notably 2003, when the month’s record high was set.[1][4] More typical August maxima sit in the mid-20s Celsius, and comparable weather sites also cluster the month’s average high near 24°C, which means outcomes in the 20s remain the base case while the low-30s require a stronger warm spell than usual.[9][16]
The main catalyst for the final printed value is the intra-day weather pattern at Munich Airport: sunshine, wind direction and any convective showers can shift the top reading by several degrees during the observation window, even if the day starts cool. Weather Underground’s history page is the key source for resolution, so traders should focus on whether the day’s hourly progression produces a brief spike above the surrounding forecast range rather than on the broader monthly climatology.[3][12]
Methodology
Sports-specific comparison page for Highest temperature in Munich on August 10?. 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.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- 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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