Highest temperature in Guangzhou on July 7?

Platform comparison

Market context

On 7 July 2026, the highest temperature recorded at Guangzhou Baiyun International Airport will determine the outcome of a prediction market focused on extreme summer heat. Historical data confirms that July is consistently Guangzhou’s hottest month, with daily highs averaging 33°C and frequently reaching 36°C or higher. WeatherSpark notes that July highs typically sit around 32.8°C (91°F), rarely dipping below 29.4°C (85°F) [1]. AccuWeather’s 2026 forecast for Guangzhou predicts daily highs between 29°C and 37°C (84°F–99°F), reinforcing that a sub-29°C day would be an anomaly [2]. China Discovery further states July’s average temperature is 28.7°C, with torrid conditions persisting through August [3]. Given this consistent thermal pattern, the crowd-implied 0% probability for a “YES” outcome (likely meaning a temperature below a specific threshold) appears misaligned with decades of climatic evidence.

Traders should monitor real-time weather updates from Wunderground, the official resolution source, and watch for any sudden shifts in monsoon activity or cloud cover that could suppress temperatures. Recent reports from People’s Daily highlight that May 2026 was already Guangzhou’s hottest in history, with temperatures peaking at 36.3°C during continuous sunny spells [5]. This precedent suggests July could match or exceed that intensity. Additionally, Reddit users in travel forums have described “insane heat” in Guangzhou, with ambient temperatures exceeding 30°C even indoors [6]. China Educational Tours confirms July highs can reach 36°C (96.8°F), though cloudy and rainy days are also common [7]. The market’s book depth is likely driven by funding flows from payment rails like Klarna and SEPA, where deposit fees and withdrawal speed influence trader participation. As settlement nears on 7 July 2026 at 12:00 UTC, liquidity will hinge on how quickly USDC and Klarna transactions clear, directly affecting the market’s ability to absorb new positions.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Guangzhou on July 7? 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.

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).

Are payment details protected?

Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.