Highest temperature in Taipei on August 2?

Platform comparison

Market context

Taipei’s temperature on 2 August will be set by the highest reading at Songshan Airport, with the crowd currently pricing a **0%** chance of the listed YES outcome and instead clustering around a daytime peak near **36–37°C**.[2] In handicapper terms, that makes the market look like a very heavy favourite in the mid-to-high 30s, with the consensus sitting on the warm side of the distribution rather than near the lower buckets.[2]

Seasonality argues for a hot close, but not a single clean number: August in Taipei is normally high-heat, high-humidity weather, with published monthly ranges centred around the low 30s Celsius and day-to-day highs often stretching into the mid-30s.[1][10][12][16] Historical August climate guides for Taipei also show that upper-30s readings are plausible in the city, so the value question is not whether it is warm, but whether the day overshoots the market’s favourite bin by a degree or two.[3][14] If the final print lands right on the consensus edge, the market’s narrow pricing suggests little room for surprise, while a modestly cooler afternoon would be the main contrarian angle against the top two outcomes.[2]

For traders, the key catalyst is the live weather path through the day rather than any scheduled announcement: the result depends on the highest official reading at Taipei Songshan Airport before the first datapoint for 3 August is published, after which revisions are excluded.[2] That makes midday cloud cover, rain bands, and sea-breeze effects the main dependencies to watch, especially if the forecast drifts below the current model cluster around 36–37°C.[2] AccuWeather’s August outlook for Taipei still points to daily highs of 86° to 92°F, which is consistent with a market that has already discounted a strong heat outcome.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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 Who Will Win 2026. 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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.