Highest temperature in Chengdu on August 14?

Platform comparison

Market context

Chengdu's peak temperature on 14 August 2026 will be measured at Shuangliu International Airport Station and reported via Weather Underground's Daily Observations table, the designated resolution source. The settlement window closes at midday UTC on that date, meaning traders must account for any lag between local observation times and the formal recording. Weather Underground's Daily Observations figures occasionally diverge from the Day High & Low summary section, a distinction this market explicitly prioritises—a detail that matters when comparing resolution methodologies across platforms.

Chengdu experiences extreme summer heat, with August historically the hottest month. Historical August highs at Shuangliu typically range between 32–35°C, though the city has recorded temperatures exceeding 40°C during heat waves. The current 0% implied probability suggests the market may be pricing a specific temperature threshold as unlikely rather than reflecting genuine uncertainty about whether Chengdu will be hot in August. Traders should examine which temperature ranges the market has actually offered; a 0% reading often indicates the lowest or highest bracket is receiving no backing, not that heat is impossible.

Monitoring China's meteorological forecasts and any heat alerts issued by Chengdu authorities in early August will provide directional signals. The China Meteorological Administration publishes extended outlooks roughly two weeks ahead. Kalshi, Polymarket, and Betfair may differ on how granularly they've segmented temperature ranges—Kalshi's binary structure versus Polymarket's multiple brackets versus Betfair's decimal odds create different effective probabilities for identical outcomes. Fee structures and withdrawal timelines also vary; traders should verify settlement speed and whether their chosen platform settles against Weather Underground directly or via a secondary feed.

Methodology

We read Highest temperature in Chengdu on August 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

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.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

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.

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.