Highest temperature in Shenzhen on July 21?

Platform comparison

Market context

Shenzhen is currently experiencing overcast conditions with a temperature of 84°F and a RealFeel of 95°F, driven by 83% humidity and 91% cloud cover at the Bao'an International Airport station [1]. This immediate atmospheric state, combined with a 29% chance of precipitation in the coming hour, suggests the day’s peak heat may be suppressed by persistent cloud layers rather than reaching the extreme highs typical of mid-summer clear skies [2].

Historical data for late July in Shenzhen usually sees temperatures climbing well above 32°C (90°F), often peaking near 35°C–37°C under clear skies, making the current 0% crowd-implied probability for the market’s specific outcome highly anomalous unless the resolution range is set exceptionally low. The discrepancy likely stems from the settlement window ending at 12:00 UTC on 21 July 2026—just two hours from now—which may exclude the afternoon peak when temperatures typically reach their maximum, effectively locking in a lower recorded value if the day remains overcast.

Traders should monitor the final two hours of the settlement window for any sudden clearing of clouds or a drop in humidity, which could rapidly elevate temperatures toward the seasonal average. No new weather announcements or station-specific alerts have been issued as of 10:15 UTC, but the persistent 91% cloud cover noted by AccuWeather remains the primary catalyst keeping the day’s peak temperature suppressed [1]. The resolution will depend entirely on whether Wunderground records a higher temperature before the 12:00 UTC cutoff, with current conditions pointing toward a modest peak rather than a record-breaking heatwave.

Sources: 1 · 2

Methodology

Football-specific comparison page for Highest temperature in Shenzhen on July 21?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.