Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
98% | 2% | 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 |
|---|---|
| 31°C | 98% |
| 32°C | 2% |
| 23°C or below | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 33°C or higher | 0% |
Market context
Shenzhen’s afternoon heat on 1 August will be measured at Bao’an International Airport, so the market is really a bet on whether the day tops out in the usual hot-season band or pushes into a rarer spike. August in Shenzhen is typically very hot and humid, with average highs around 32°C and many climatology sources clustering daytime highs in the high 80s to low 90s °F, while record August highs have reached roughly 38–40°C in past years.[4][6][7][8][10]
That history makes the current 0% yes-implied price look anchored to the idea that an extreme peak is unlikely, not impossible. Comparable August data show Shenzhen can occasionally print into the upper 30s °C, and one source cites a record August high of 103°F in 2017, with another placing the monthly record around 38°C in 2009.[1][10] For a weather market settled on the single highest airport reading, traders usually focus less on monthly averages and more on whether clear skies, weak onshore flow and suppressed rain let the daily maximum run above the standard climatology band.[6][8][18]
For payment-driven depth, the relevant catalyst is whether fresh capital can get onto the book quickly enough to matter before the midday settlement cut-off. Markets like this tend to widen when traders face on-ramp friction, so deposit speed and cost through Klarna, SEPA and USDC can be more important than the headline forecast itself. If funding rails are smooth, the book can absorb local weather updates from the Guangdong coast, including any late monsoon bursts or typhoon-related shifts in rain and cloud cover that would cap the airport high; if transfers are slow or costly, liquidity often stays thin until the market is already close to resolution.
Methodology
This page compares Highest temperature in Shenzhen on August 1? 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
- What does SOFORT cost as a deposit method?
- Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.
- Which payment methods are supported?
- Klarna (Pay Now / Pay Later), SOFORT, SEPA bank transfer, credit card (Visa/Mastercard), Apple Pay, Google Pay, and direct USDC deposit on Polygon. Availability depends on your jurisdiction.
- 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.
- 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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