Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
43% | 57% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
43% | 57% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 27°C | 43% |
| 28°C | 40% |
| 29°C | 14% |
| 26°C | 8% |
| 21°C or below | 0% |
| 22°C | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 30°C | 0% |
| 31°C or higher | 0% |
Market context
The real-world event is the highest air temperature recorded at Munich Airport Station on 7 August, measured in Celsius and mapped to the market’s settlement bands. Current forecasts cluster around the low-to-mid 20s Celsius for the day, with some services showing around 24–25°C and others briefly higher, while AccuWeather’s August outlook allows daily highs up to about 27°C; that keeps the market near the boundary between a modest summer reading and a warmer-than-average spike for Munich. [1][7][14]
That 0% crowd price reads as a hard sceptic position rather than a firm statistical statement, because August in Munich is usually warm but not extreme, with long-run daytime highs commonly in the low-to-mid 20s and occasional excursions into the upper 20s or low 30s during hotter spells. Comparable forecasts and climate normals therefore suggest the main question is whether the airport station tops out in the mid-20s, or whether a short-lived warm surge pushes the day into a higher band; the market should be read against the fact that late-summer heat in southern Germany is possible but not the base case. [2][8][10][13]
For accessibility and regulation, this sits in a weather category that is usually easier to access than event markets tied to elections or sports, but the legal wrapper still matters: German GlüStV constraints can affect whether some residents are able to use the platform, while the US CFTC’s approach to event-contract supervision remains relevant for any US-facing access route. A “no-KYC up to $1,500” structure typically means smaller users can enter with lighter identity checks until that cumulative activity threshold is reached, improving usability for a modest weather position but not removing account, jurisdiction, or source-verification frictions. The key catalysts are the day’s actual Munich Airport observations and any late forecast updates that shift the expected afternoon maximum before the settlement window closes.
Methodology
This overview of Highest temperature in Munich on August 7? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
UK Frequently Asked Questions
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Tax UK has a different geo footprint.
- Is Polymarket regulated by the UKGC?
- No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.
- What are the HMRC tax rules on Polymarket profits for UK traders?
- Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.
- Does Polymarket KYC apply to UK users?
- Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.
- What is the legal difference between Polymarket and Betfair Exchange for UK traders?
- Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.
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