Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
73% | 27% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
73% | 27% | 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 |
|---|---|
| 35°C | 73% |
| 34°C | 19% |
| 36°C | 10% |
| 33°C | 2% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
Munich's weather on 15 August 2026 will depend on the prevailing atmospheric pattern across central Europe in mid-summer. Currently, the crowd assigns zero probability to this event resolving, suggesting either extreme confidence in a specific temperature range or insufficient engagement with the market. The settlement mechanism relies on Weather Underground's Daily Observations table at Munich Airport Station, which typically records readings at regular intervals throughout the day and may differ from headline high-low summaries.
Historical August temperatures in Munich show considerable variability. The city's long-term August average high sits around 24–25°C, though readings regularly exceed 28°C during warm spells. The record August high at Munich Airport stands at 37.3°C (set in 2015), whilst cooler Augusts have seen daily highs remain below 20°C. This range underscores why temperature forecasting for a specific date two years ahead carries substantial uncertainty; seasonal patterns, jet stream positioning, and any heat dome formation will determine whether 15 August 2026 falls into cooler, moderate, or exceptionally warm territory.
Traders monitoring this market should track European summer climate forecasts as 2026 approaches, particularly any signals about Atlantic blocking patterns or Mediterranean heat transport. The North Atlantic Oscillation and soil moisture conditions across central Europe typically influence August weather regimes. As the settlement date nears, standard meteorological forecasts will become available roughly 10–14 days beforehand, providing concrete data against which the market's probability distribution can be tested.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- 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.
- 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%.
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