Highest temperature in San Francisco on August 5?

Platform comparison

Market context

The real-world event is the **highest temperature actually recorded at San Francisco International Airport on 5 August 2026**, with resolution tied to Wunderground’s daily history page for KSFO. That makes the market a pure read on the day’s realised airport maximum, not on citywide conditions or a forecast elsewhere in the Bay Area. San Francisco’s August climate is usually mild, with long-run daytime highs around 20°C/68°F to 21°C/70°F, so the market’s range structure is designed around small deviations from a stable seasonal baseline.[2][5][9][12]

The current crowd price of **0% YES** is best read as an absence of carried-over positioning rather than a statement that the event cannot happen. For context, Polymarket lists the 72–73°F band as the leading outcome for this market, with the 74–75°F band next, while one forecast summary also points to a mild day near the low 70s Fahrenheit.[2] Comparable San Francisco August cases usually settle in a narrow band because marine influence and frequent coastal cooling limit extreme highs, which is why late-day warming or a brief offshore shift matters more than headline weather language.[5][12]

Traders should watch the final airport observations, any late revisions to the daily climate record, and the publication timing of the following day’s first datapoint, because Polymarket says revisions within the window are only considered until that point.[2] For accessibility, “no-KYC up to $1,500” means a user can generally trade up to that threshold without completing identity verification, which affects participation more than market mechanics; after that, KYC is typically required. Regulatory framing still matters: Germany’s GlüStV can restrict access to gambling-style products for residents, while the US CFTC’s reach is relevant where a venue or user activity falls within US derivatives oversight, even if the practical treatment depends on the platform structure and jurisdictional rules.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in San Francisco on August 5? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

Resolution & payout

On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.

FAQ

Is Polymarket legal in my country?

Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Polymarket Legal in Canada has a different geo footprint.

Do I need to KYC for Is Polymarket Legal in Canada?

Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.

What happens during a tax audit?

You're responsible for documenting your trades. Is Polymarket Legal in Canada exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.

Is there a withdrawal cap?

No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).

What if regulation changes?

If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Polymarket Legal in Canada would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.