Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
88% | 12% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
88% | 12% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 33°C | 88% |
| 34°C | 11% |
| 26°C or below | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 35°C | 0% |
| 36°C or higher | 0% |
Market context
The practical question is whether Shenzhen Bao’an International Airport gets hot enough on 23 July for the day’s peak to land above the low-30s Celsius bands most traders are watching. Shenzhen’s July norm is already hot and humid, with typical daytime highs around 32°C and frequent rain, while the current local reading is 84°F with a RealFeel of 96°F, showing how quickly moisture can lift perceived heat even before the afternoon peak arrives.[3][1]
That makes the market’s 0% implied YES look anchored to the settlement source rather than to a broad weather impression. The current book still favours 34°C at 62%, with 33°C next at 25%, which suggests traders are concentrating on a narrow set of outcomes and are not pricing an extreme spike.[2] In comparable Shenzhen July conditions, rainfall and cloud cover usually cap the upside, but clear mornings can still leave room for a warmer airport high if convection holds off until later in the day.[3][4]
For traders, the key catalysts are the afternoon heating window in southern China, any shift in rain bands or thunderstorm timing, and whether airport-observed temperatures diverge from city forecasts as sea-breeze and humidity effects build. The deeper angle here is funding flow: a market with easy deposits and fast withdrawals tends to sustain tighter spreads and more book depth, so friction from card top-ups, bank transfers, or crypto rails can matter as much as the weather itself. If Klarna, SEPA, or USDC on-ramping is smooth, liquidity is more likely to appear quickly when fresh forecasts or updated station readings move the range pricing.
Methodology
This page compares Highest temperature in Shenzhen on July 23? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.
Resolution & payout
Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).
FAQ
- How fast is SEPA deposit?
- SEPA Instant: under 10 seconds. SEPA Standard: 1-2 business days. Both accepted fee-free; the internal USDC conversion runs automatically once EUR lands in the platform account.
- Can I deposit with a credit card?
- Yes, Visa and Mastercard. Credit card deposits carry a ~2.5% acquirer surcharge (standard for card payments). Apple Pay and Google Pay run on the same card rails — same surcharge.
- What's the minimum deposit?
- 10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).
- How do withdrawals work?
- Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).
- Are payment details protected?
- Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.
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