Highest temperature in Tokyo on July 14?

Platform comparison

Market context

On 14 July 2026, Tokyo's highest temperature will be recorded at Haneda Airport Station and settled against Wunderground's historical data. The 0% crowd probability reflects either extreme confidence in a specific temperature range or minimal trading activity on this particular outcome. Across major platforms, this market reveals structural differences: Polymarket displays implied probabilities directly, whilst Kalshi and Betfair present decimal odds requiring conversion, and Smarkets sits between them. Fee structures diverge sharply—Polymarket charges 2% on winnings, Kalshi typically 5%, and Betfair's commission varies by sport and liquidity tier. KYC requirements also differ materially; Kalshi enforces stricter US-based verification than Polymarket's lighter touch, affecting which traders can access this market at all.

Historical July temperatures in Tokyo cluster tightly. The Japan Meteorological Agency records show mid-July highs typically range between 32–35°C, with extreme heat events (36°C+) occurring roughly once per decade. The 2023 summer saw Tokyo reach 37.5°C in late July; the 2010 heatwave peaked at 39.9°C. These precedents matter for calibrating probability across the range bins offered.

Traders should monitor the Japan Meteorological Agency's seasonal forecasts and any Pacific typhoon activity, which can suppress temperatures dramatically. El Niño or La Niña conditions influence summer heat patterns; current NOAA data through early 2026 will signal whether conditions favour above or below historical norms. Settlement closes at 12:00 UTC on 14 July, giving traders until that window to adjust positions based on real-time weather developments.

Methodology

We read Highest temperature in Tokyo on July 14? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.