Highest temperature in Amsterdam on August 14?

Platform comparison

Market context

Amsterdam's weather on 14 August 2026 will depend largely on Atlantic pressure systems and any residual heat from mid-summer patterns. The 0% crowd probability suggests traders expect temperatures to fall outside whatever range this market specifies, though without the explicit temperature bands visible here, the reasoning remains opaque. Recent Dutch summer data shows August typically peaks between 22–26°C in Amsterdam, with extremes rare but not unprecedented; the record high for August at Schiphol is 30.7°C, set in 2003 during an exceptional European heatwave.

Historical August conditions at Schiphol reveal that temperatures above 28°C occur roughly once every five to ten years, whilst readings above 25°C are commonplace. The 2003 heatwave and subsequent warm summers (2006, 2015, 2018, 2022) provide benchmarks for how far seasonal patterns can deviate. Current climate data suggests August 2026 sits within normal variability rather than an anomalous period, making extreme heat less probable than moderate conditions.

Traders should monitor European weather forecasts from mid-July onwards, particularly Atlantic storm tracks and high-pressure systems that could stall over the continent. The KNMI (Royal Netherlands Meteorological Institute) and Wunderground's historical station data at Schiphol will be critical; settlement hinges on the Daily Observations table rather than summary figures, so discrepancies between sources matter. Any significant heatwave warnings issued in the weeks preceding 14 August would shift probability materially.

Methodology

This page reviews Highest temperature in Amsterdam on August 14? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.

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.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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%.