Highest temperature in San Francisco on July 13?

Platform comparison

Market context

The market hinges on whether San Francisco International Airport records a temperature exceeding 100°F on 13 July 2026, a threshold the crowd currently deems unlikely at 4% probability. Historical data shows July highs in the city typically cluster around 70°F, rarely surpassing 79°F, with the all-time record for the airport reaching only 87°F during a 2013 heatwave [1][2]. Even during the most intense Bay Area heat events, such as the 2017 spike that hit 106°F in the city proper, the airport station has not breached triple digits, suggesting the 4% YES price reflects a rational assessment of extreme climatic outliers rather than standard seasonal variance [5].

Traders should monitor the National Weather Service’s daily heat advisories for the Bay Area and any emerging high-pressure ridge forecasts extending into mid-July, as these are the primary catalysts for anomalous warmth [8]. Recent regional heatwaves have demonstrated that while inland areas like Healdsburg can reach 116°F, the airport’s coastal exposure usually buffers temperatures significantly [3]. For accessibility, the German GlüStV imposes strict licensing on gambling operators, yet US CFTC reach remains limited for non-US platforms; the ‘no-KYC up to $1,500’ feature allows traders to bypass identity verification for smaller stakes, though larger positions will trigger compliance checks under evolving anti-money laundering rules.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in San Francisco on July 13? 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. Polymarket Tax UK has a different geo footprint.

Do I need to KYC for Polymarket Tax UK?

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. Polymarket Tax UK 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), Polymarket Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.