Highest temperature in Tokyo on July 16?

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Market context

Tokyo’s highest temperature on 16 July 2026 will be recorded at the Tokyo Haneda Airport Station and resolved via Wunderground’s daily history in degrees Celsius. The market settles in USDC on-chain, with the 0% YES crowd-implied probability suggesting traders expect no extreme heat event to breach the defined threshold, though the settlement window remains open until 12:00 UTC.

Historically, mid-July in Tokyo often sees highs between 28°C and 34°C, with Haneda Airport typically recording slightly lower peaks than central stations due to coastal exposure. In 2023, Tokyo reached 36.8°C on 19 July, while 2022 saw 35.5°C on 17 July, indicating that extreme heat is possible but not guaranteed on this specific date. The current 0% probability may reflect a lack of immediate heatwave forecasts rather than absolute certainty of cooler conditions.

Traders should monitor the Japan Meteorological Agency’s daily weather bulletins and Wunderground’s real-time updates for Haneda Airport, as sudden shifts in Pacific pressure systems or urban heat accumulation could alter the outcome. Recent climate reports from the Japanese government highlight increasing summer volatility, with funding rates on crypto derivatives markets showing elevated speculation on weather-linked contracts as BTC and ETH consolidate near key support levels.

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

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

Can I use Bitcoin directly?

No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

How volatile are crypto prediction markets?

Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.

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.