Highest temperature in Guangzhou on August 17?

Platform comparison

Market context

Guangzhou will experience peak summer heat on 17 August 2026, with the highest temperature recorded at Baiyun International Airport determining the settlement outcome. The market resolves to whichever temperature band captures the maximum reading from Weather Underground's Daily Observations table—the granular station data rather than summary forecasts. Current pricing reflects zero probability assigned to any specific range, suggesting either incomplete market seeding or genuine uncertainty about which band will clear.

Historical August temperatures at Guangzhou Baiyun show consistent peaks between 33–36°C across the past decade, with occasional excursions to 37°C during severe heat events. The 2023 summer saw multiple days exceed 35°C in mid-August; 2022 peaked at 36.4°C on 15 August. This pattern anchors reasonable expectations around the 34–36°C bands, though the 0% crowd probability indicates traders have not yet committed capital to establish book depth. Liquidity constraints on smaller weather markets often reflect deposit friction rather than genuine forecasting disagreement—SEPA transfers and Klarna payment rails typically take 1–2 business days to settle, creating timing mismatches for traders entering positions weeks ahead of the event window.

Traders monitoring this market should track China Meteorological Administration heat advisories issued in late July and early August, which typically signal whether conditions will favour above-trend temperatures. The settlement window closes at 12:00 UTC on 17 August, requiring withdrawal arrangements—whether USDC on-chain settlement or sterling bank transfers—to be confirmed before that deadline. Early position-takers benefit from wider spreads but face extended capital lock-up; late entrants encounter tighter odds but faster settlement cycles.

Methodology

This page compares Highest temperature in Guangzhou on August 17? 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).

UK Frequently Asked Questions

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.

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 UK traders use Klarna to deposit on Polymarket?

Polymarket does not natively accept Klarna. To fund a Polymarket account from the UK, you must first purchase USDC via a crypto exchange (Coinbase UK, Kraken) or Revolut, then transfer to a Polygon-compatible wallet. Some third-party on-ramps (MoonPay, Transak) accept UK debit cards and may support Klarna buy-now-pay-later for crypto purchases.

What payment methods can UK users use for Polymarket?

UK traders typically use: (1) Coinbase UK or Kraken — buy USDC with GBP debit card or bank transfer; (2) Revolut — buy crypto and send to wallet; (3) MoonPay or Transak — Visa/Mastercard UK debit card directly to USDC on Polygon. Standard GBP-to-USDC conversion fees range from 0.5–2.5%.

How long do Polymarket withdrawals take for UK users?

Polymarket withdrawals to your Polygon wallet are instant (on-chain). Converting USDC back to GBP via Coinbase UK or Kraken typically takes 1–3 business days for bank transfer, or near-instant for Revolut. Polygon gas fees are minimal (<$0.01 per transaction).