Highest temperature in Sao Paulo on August 7?

Platform comparison

Market context

It is the daytime high at São Paulo–Guarulhos International Airport that will settle this market, not the headline city forecast, and current pricing around 0% suggests the book is effectively treating the outcome as already fixed by the day’s weather pattern. That matters because late August winter in São Paulo is usually mild, with long-run daily highs commonly in the low-to-mid 20s Celsius rather than heatwave territory, so the relevant question is whether the airport station briefly touched a band above or below the main forecast cluster.[3][9][12]

Comparable cases in this market class usually hinge less on broad city forecasts than on the exact station observation and the resolution table used at the cut-off. Here, trader reading is also shaped by funding frictions: smaller top-ups through Klarna or SEPA typically arrive faster and with lower card churn than traditional bank cards, while USDC deposits can reduce on-ramp cost and support more frequent rebalancing. In practice, that means tighter spreads and deeper books tend to appear when payment rails are smooth and settlement is simple, which is why a near-certain price can still reflect book structure as much as meteorology.[4]

For catalysts, the key inputs are the final airport observations, any late forecast updates, and whether afternoon showers or cloud cover suppress the day’s peak. Local reporting on 7 August pointed to sun with many clouds and showers later in the day, with maximums cited around 27°C or 25°C, while broader forecasts also clustered near 24–29°C, leaving limited room for a large upside surprise unless the airport station ran notably warmer than the city average.[1][5][13][14]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Sao Paulo on August 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).

UK Frequently Asked Questions

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.

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).