Highest temperature in Taipei on July 23?

Platform comparison

Market context

Taipei has started the day hot and humid, with current conditions around 78°F/26°C and forecasts pointing to a daytime high near 95°F/35°C, alongside a passing afternoon shower or two.[2][5] That leaves the market anchored to whether Songshan Airport gets a clean early climb into the mid-30s Celsius before cloud, rain, or sea-breeze effects cap the peak later in the day.[1][5]

The 0% implied probability for a specific outcome should be read against Taipei’s July climatology rather than as a true no-chance signal. July is normally one of the city’s hottest and wettest months, with typical daytime highs in the low-to-mid 30s Celsius and frequent humidity that makes heat feel more extreme.[3][7] In a normal Taipei summer setup, the most likely resolved buckets are the mid-30s Celsius, which is why traders often see the market price cluster around that band rather than around cooler thresholds.[3][4]

The main catalysts today are the afternoon shower timing, cloud cover, and any short-lived peak in sunshine before convection builds. AccuWeather flags extreme UV and about 1.5 hours of precipitation, while other forecasts show a slight thunderstorm and temperatures topping out around 31°C to 35°C depending on location and timing.[1][5][9] For settlement, the key number is the highest observation at Taipei Songshan Airport Station on the day, so the late-morning to mid-afternoon window is likely to matter most.[0]

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today 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.