Pronóstico: Highest temperature in Taipei on August 9?

Platform comparison

Market context

Polymarket prices this Taipei temperature contract at **3% for YES**, implying traders are assigning only a small chance that the highest observed reading at Songshan Airport lands in the relevant range for the market’s resolution on the day. The contract settles in **USDC on Polygon** through conditional tokens, so the live price is the market’s consensus on the odds of a specific Weather Underground daily-observation outcome, not a broad forecast for Taipei weather generally.

That low price sits against a climate where August highs in Taipei are usually in the low 30s Celsius, with rainfall common. Recent forecast pages for 9 August point to **heavy rainstorms** and highs around **31°C** or **30°C**, while the market ladder is concentrating volume in the lower temperature bins, especially **26°C or below**, alongside the **27–30°C** ranges.[1][2][3][15] For context, another public forecast source has Taipei around **28°C maximum** in a rainy outlook, which is consistent with the idea that a cooler, wetter day is more likely than an extreme heat spike.[4]

A trader watching this on-chain market should focus on whether the midday heating window is disrupted by rain bands, cloud cover, or a shift in wind rather than on the generic city forecast alone, because settlement depends on the **single highest observation** in Weather Underground’s **Daily Observations** table at Taipei Songshan Airport.[3] The practical catalysts are the short-range forecast updates, any heavy-rain alerts, and the timing of the day’s peak temperature before the market’s settlement window closes; recent public forecasts already show a wet setup for 9 August, with probability-weighted highs below the hottest summer extremes seen in Taipei this month.[14][15][18]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Highest temperature in Taipei on August 9? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.

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

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 fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.