Highest temperature in San Francisco on July 13?

Platform comparison

Market context

The market resolves on whether the highest temperature at San Francisco International Airport on 13 July 2026 reaches a specific threshold, with the crowd currently assigning only a 7% probability to the YES outcome. This low implied probability reflects San Francisco’s typical July climate, where daily highs average around 70°F and rarely exceed 79°F, making extreme heat events statistically uncommon for this coastal location[1]. Historical records show the airport’s all-time July high is 87°F, set in 2013, while the previous record was 85°F in 1973, suggesting that temperatures significantly above 80°F are rare outliers rather than norms[2].

Traders should monitor early July weather forecasts for the Bay Area, particularly any signs of an incoming heat dome or marine layer breakdown, which are the primary catalysts for anomalous highs in San Francisco. Recent data indicates the Bay Area experienced its hottest July on record last month, with averages 12°F above normal, though this does not guarantee a repeat pattern for mid-July 2026[3]. The settlement relies exclusively on Wunderground’s KSFO station data, so any discrepancies between forecast models and actual station readings will directly impact resolution.

From a regulatory standpoint, German GlüStV implications mean this market must comply with strict state gambling oversight if accessed by German users, while US CFTC reach extends to any platform offering prediction contracts to US residents without proper registration. The ‘no-KYC up to $1,500’ feature enhances accessibility for international traders but does not exempt the platform from KYC requirements once thresholds are exceeded or if local laws mandate verification regardless of volume.

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 Germany Legal has a different geo footprint.

How are winnings taxed?

Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.

Can I trade anonymously?

Pseudonymously, yes — up to the KYC threshold. Polymarket Germany Legal stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.

What happens during a tax audit?

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

Are prediction markets gambling?

Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.