Highest temperature in Hong Kong on July 20?

Platform comparison

Market context

On 20 July 2026, Hong Kong will record its peak daily air temperature, measured in degrees Celsius by the Hong Kong Observatory. The market resolves to the specific range containing this absolute daily maximum once the official “Daily Extract” is published. With the crowd-implied probability at 0% for any YES outcome, traders are effectively betting that the temperature will fall outside the defined ranges, or that data publication delays will prevent resolution before the 2026-07-20T12:00:00Z settlement window closes.

Historically, Hong Kong’s July highs typically cluster between 31°C and 34°C, with extreme outliers rarely exceeding 35°C. In 2022, the highest recorded temperature on 20 July was 33.6°C, while 2023 saw 32.8°C. The current 0% probability suggests the market expects either a significant cooling anomaly or a structural mismatch between the offered ranges and likely outcomes. Comparable weather markets in tropical regions often show similar initial skew when ranges are set too narrowly, reflecting early liquidity hesitation rather than genuine temperature forecasts.

Traders should monitor the Hong Kong Observatory’s release schedule for the “Daily Extract,” as delays in data finalisation can invalidate settlement. A recent climate bulletin from the Observatory noted that July 2026 is experiencing above-average cloud cover, which may suppress peak temperatures [1]. Additionally, watch for announcements on SEPA and USDC withdrawal rails from Klarna, as payment friction directly impacts book depth and liquidity inflows into weather markets. Any disruption in on-ramp access could reduce trading volume, widening spreads and distorting implied probabilities.

Methodology

This page compares Highest temperature in Hong Kong on July 20? 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 does Klarna deposit work on Polymarket Klarna UK?

You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.

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.

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).