Highest temperature in Beijing on July 13?

Platform comparison

Market context

Beijing faces its peak summer heat on 13 July 2026, with the Beijing Capital International Airport Station set to record the day’s maximum temperature in degrees Celsius. Historical data shows July is the hottest month, averaging a high of 31°C (88°F), while extreme records include 41.9°C on 24 July 1999 and a recent June spike of 41.1°C in 2023[2][4][7]. The current 0% implied probability for a specific outcome suggests the crowd expects temperatures to fall outside the defined range, likely aligning with typical mid-July highs of 33–35°C rather than record-breaking extremes[8].

Traders should monitor real-time updates from Wunderground, the official resolution source, and short-range forecasts from global models that currently project a 33–35°C maximum for nearby dates[1][8]. Key catalysts include any official heatwave announcements from Chinese meteorological authorities and humidity levels, which can amplify perceived heat stress even if temperatures remain moderate[1]. Unlike Kalshi’s decimal odds and strict KYC requirements, Polymarket displays outcomes as implied probabilities with lighter verification, while Betfair and Smarkets offer traditional decimal pricing but often higher fees on weather derivatives[8].

This divergence in pricing mechanics and fee structures affects liquidity depth on niche weather markets like this one. Polymarket’s probability-based interface may attract retail traders seeking simplicity, whereas Kalshi’s regulated environment appeals to institutional players requiring auditability. The settlement window ending 2026-07-13T12:00:00Z means final resolution hinges entirely on the single daily maximum recorded at ZBAA, with no allowance for averaging or multiple readings[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Highest temperature in Beijing on July 13? 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 about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative 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. Kalshi Alternative 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.