Highest temperature in Hong Kong on August 11?

Platform comparison

Market context

Hong Kong’s hottest reading on 11 August will be set by the Hong Kong Observatory’s **Absolute Daily Max** for that date, so the market is really about whether the city gets a capped, humid summer afternoon or a more extreme spike. In late summer, even a small shift in cloud cover, showers or urban heat can move the daily maximum by a degree or more, which matters because this market settles to a one-decimal Celsius value from the Observatory’s final daily extract.[7][14]

Recent August comparisons point to a very hot baseline, which helps explain why the current 0% yes price can still be read as a funding and positioning issue rather than a weather conviction. The Observatory recorded **34.4°C** as the highest temperature in Hong Kong on 10 August 2025, while earlier August records show individual days reaching the low 30s with humidity and rainfall varying sharply from day to day.[4][2] Separate reporting from 2025 also noted Hong Kong’s all-time Observatory maximum of **36.9°C**, underlining that the city can still produce outlier heat when synoptic conditions line up.[5][13]

For traders, the key catalysts are the Observatory’s morning and midday updates, the day’s rainfall and cloud pattern, and whether showers arrive early enough to suppress the peak; by early 11 August 2025, for example, the Observatory was already reporting 29°C at its headquarters and 31°C at several inland stations, showing how quickly land areas can run hotter than the official site.[12] Book depth in this sort of market is often dictated by deposit friction: quick top-ups via Klarna or SEPA tend to support participation, while slower withdrawal rails and USDC flows can affect how aggressively short-term weather views are expressed around the final print.[15][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Hong Kong on August 11? 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

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.

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).