Highest temperature in Shanghai on August 17?

Platform comparison

Market context

Shanghai's highest temperature on 17 August 2026 will be measured at Pudong International Airport Station and recorded in Weather Underground's Daily Observations table. The market settles on a specific temperature range containing that peak reading in degrees Celsius. Current crowd pricing reflects deep uncertainty about summer heat patterns two years forward, with zero probability assigned to any single outcome band—a signal of thin initial liquidity rather than consensus bearishness.

Historical August temperatures in Shanghai cluster between 32–36°C, with occasional peaks above 37°C during heat waves. The 2013 summer saw Shanghai record 40.6°C, the highest in over a century, whilst more typical August highs settle in the 33–35°C range. Comparable markets on East Asian summer extremes have shown that traders systematically underweight tail-risk heat events in early-stage books; as settlement approaches and meteorological forecasts sharpen, probability mass typically redistributes toward higher temperature bands. The 0% crowd reading here reflects sparse trading volume rather than genuine conviction that moderate temperatures are certain.

Traders monitoring this market should track China Meteorological Administration seasonal forecasts, typically released in June and July, which inform La Niña or El Niño conditions affecting East Asian summer patterns. Real-time catalyst points include late-July heat advisories and early-August weather station data feeds. Book depth will likely improve as August approaches and traders can deposit via Klarna, SEPA transfers, or USDC on-ramp, reducing friction for position-taking. Weather Underground's API updates daily, making this market amenable to algorithmic tracking once sufficient liquidity accumulates.

Methodology

This page compares Highest temperature in Shanghai 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

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).