Highest temperature in Taipei on July 25?

Platform comparison

Market context

On 25 July 2026, the highest temperature recorded at Taipei Songshan Airport Station will fall into one of several defined ranges. The settlement will draw from Wunderground's historical weather database, which archives hourly observations from this official meteorological station. The 0% crowd probability suggests either extreme confidence in a specific range or insufficient liquidity across competing books at present.

Taipei's July temperatures are among the year's most consistent. Historical data from the past two decades shows daily highs in late July clustering between 33–36°C, with occasional peaks above 37°C during heat waves. The Taiwan Central Weather Administration recorded 38.5°C at Taipei on 19 July 2013 during an exceptional heat event, and 37.8°C on 8 July 2022. These outliers remain rare; most years see July 25 settle in the 34–35°C band. Traders should cross-reference Wunderground's historical archive directly, as different platforms (Polymarket, Kalshi, Betfair) may display temperature ranges with varying granularity, affecting how odds distribute across buckets.

The key catalyst is the monsoon pattern forecast for early-to-mid July 2026. The Taiwan Central Weather Administration typically issues extended outlooks by late June; any announcement of an approaching Pacific high-pressure system or heat dome would shift probability toward higher ranges. Kalshi's KYC requirements and US-focused settlement may create arbitrage gaps versus Polymarket's international reach on this Asia-Pacific event. Fee structures differ materially—Kalshi charges 2% on profits, whilst Polymarket's tiered model affects edge calculations on tight ranges.

Methodology

We read Highest temperature in Taipei on July 25? 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

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

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.

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.