Highest temperature in Munich on August 7?

Platform comparison

Market context

The key event is the day’s **highest temperature at Munich Airport Station** on 7 August, with the market settling into the range that contains that final observed maximum from Wunderground’s daily history page. With the current crowd price at **0% YES**, the market is effectively saying traders do not expect a hot-enough reading to land in the contract’s target band, so even a modest afternoon spike would be a meaningful repricing event.

Seasonally, Munich in early August usually sits in the mid-20s Celsius, with forecast services clustering around highs near **24°C to 27°C**, though some models allow peaks closer to **29°C to 33°C** and still show clear or partly cloudy conditions. That mix matters because temperature contracts often hinge on the day’s single highest reading rather than the mean, and Munich’s summer pattern can produce a late-afternoon top even when morning conditions look benign.[1][5][15][18] Recent August climatology also points to warm daytime highs and frequent rain days, so a wetter forecast does not automatically cap the maximum if showers are isolated or delayed.[7][10][12]

For traders, the main catalyst is the intraday forecast path into the afternoon local time window, when the station’s maximum is most likely to be set; any upgrade in sunshine, reduced cloud cover, or stronger downslope heating can lift the realised high. On-chain, the contract settles in **USDC**, so the payoff is linear and isolated from broader crypto volatility, but BTC and ETH tone can still matter indirectly if market makers widen spreads or reduce inventory around major risk events. In the wider crypto tape, sharp moves in spot, funding, or whale-driven flows can change how tightly prediction markets are quoted, even when the underlying event is purely weather-based.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

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%.