Highest temperature in London on June 8?

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Active sub-markets

Market context

London's highest temperature on 8 June 2026 will be recorded at City Airport and resolved via historical weather data from Wunderground. The settlement window closes at midday UTC on that date, meaning traders must commit capital before the full day's peak temperature is known. This creates a timing constraint that affects how late-arriving information flows into the market and how quickly positions can be closed.

June temperatures in London typically peak between 20–25°C, though the city has recorded highs above 30°C during heat waves. The 0% crowd probability suggests either extreme confidence in a below-range outcome or insufficient liquidity to attract early traders. Historical June data from City Airport shows variability driven by Atlantic weather systems and occasional continental air masses; the Met Office's seasonal forecasts, published in May, will provide the first official guidance on whether 2026 June is expected to run warmer or cooler than the 1991–2020 average of 22.5°C.

Traders should monitor the UK weather forecast window from late May onwards, particularly any alerts from the Met Office regarding heat waves or unsettled conditions. Deposit flows into prediction market platforms typically accelerate in the week before settlement, and withdrawal rails—SEPA transfers, USDC on-chain settlement, and Klarna instant payouts—determine how quickly traders can move winnings or rebalance positions. Early liquidity in this market will depend on whether competing platforms or weather-focused trading communities signal conviction in specific temperature bands.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket Deposit UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Deposit UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.