Highest temperature in Taipei on August 2?

Platform comparison

Market context

Taipei’s hottest reading today will be set by the afternoon peak at Songshan Airport, not by the morning temperature already on the board. August is normally the city’s hottest and stickiest month, with average highs around 32-34°C and frequent humidity; historical guides also show that the day’s top can easily land in the low-to-mid 30s, while exceptional heatwaves push well above that range.[2][4][9][15]

That is why the current 0% YES on the lowest bucket should be read as a reflection of the market’s likely outcome distribution rather than certainty about the weather itself. Comparable August data show a broad cluster around 31-34°C, with recorded extremes in Taipei reaching 38-39.7°C in past heat events, so the upper bands remain live if skies stay clear and winds are light.[3][13][20] On-chain, this kind of event typically settles in USDC, so any repricing tends to track whether traders think the local forecast is drifting above or below the published strike buckets.

The main catalyst is the daytime forecast for northern Taiwan, especially cloud cover, rain bands, and any typhoon-related disruption that can cap the maximum temperature. Recent August outlooks already point to hot, wet conditions in Taipei and a meaningful typhoon risk across Taiwan, which matters because heavier showers and cloud cover can pull the daytime high down several degrees.[6][9][14] For crypto traders, broader BTC and ETH moves are usually secondary here, but sharp risk-on or risk-off flows can still affect liquidity and spread; that matters most when a weather market is thin and the final settlement window closes before the day’s peak heat has fully printed.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

What are crypto prediction markets?

Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

How does UMA secure the resolution?

The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.