Highest temperature in Hong Kong on July 4?

Platform comparison

Market context

The real-world event at hand is the highest air temperature recorded by the Hong Kong Observatory on 4 July 2026, measured in degrees Celsius to one decimal place. Historical data shows July in Hong Kong typically peaks between 31°C and 33°C, with the highest monthly mean maximum reaching 32.9°C in 2007[1]. Recent extremes, such as the 39°C recorded in Sheung Shui during a record-breaking July day, demonstrate that temperatures can surge well above the norm under intense heatwaves[3]. However, the current crowd-implied probability of 0% for any specific range suggests traders view the outcome as either highly uncertain or outside the most likely bands, possibly due to the settlement window ending in 2026 and the lack of finalized data.

Traders should monitor announcements from the Hong Kong Observatory regarding tropical cyclones, which may bring Force 7 winds and disrupt typical weather patterns on 4 July[10]. The Observatory’s climatological reports, including the “Daily Extract” for absolute daily maximums, will be the definitive resolution source once finalized[9]. A recent news report from The Standard highlights that a tropical cyclone may impact weekend conditions, introducing volatility to temperature forecasts[10]. Funding flows into this market’s book depth will likely correlate with deposit activity via Klarna and SEPA rails, as traders seek to hedge against weather-driven price swings. Withdrawal liquidity through USDC and Klarna will further influence market traction, tying payment friction directly to the depth of the betting book.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Hong Kong on July 4? 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.

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).