Highest temperature in Tokyo on May 26?

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Market context

The highest temperature recorded at Tokyo Haneda Airport Station on 26 May 2026 will determine which temperature band resolves this market. Settlement relies on historical weather data from Weather Underground, with the final reading locked once the day concludes and records are finalised.

Tokyo's late May climate typically ranges between 22°C and 28°C, though extremes occasionally breach these bounds. The city experienced a high of 30.1°C on 26 May 2015 and 29.4°C on 26 May 2019, according to Japan Meteorological Agency records. Early summer weather patterns in the Kanto region show considerable year-to-year variation depending on whether high-pressure systems dominate or frontal systems bring cooler, wetter conditions. Haneda Airport's coastal location near Tokyo Bay moderates temperatures slightly compared to central Tokyo, typically reducing peaks by 1–2°C. Historical data suggests temperatures above 32°C on this date are rare but not unprecedented given broader warming trends across Japan.

Traders should monitor seasonal forecasts issued by the Japan Meteorological Agency in April and early May, which provide guidance on whether the 2026 late-spring period will favour warmer or cooler conditions. El Niño or La Niña patterns active during early 2026 will influence atmospheric circulation over East Asia. Real-time forecasts from Weather Underground and other services will become increasingly precise in the week preceding 26 May, though weather prediction beyond ten days carries substantial uncertainty. Unusual heat waves or cold snaps affecting Japan in the preceding weeks may signal whether anomalous conditions are likely to persist through late May.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Tokyo on May 26? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On Trump Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 it cost to trade on Trump Prediction?

Zero. Trump Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.

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.