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Highest temperature in Paris on July 22?

"Highest temperature in Paris on July 22?" on Polymarket, Kalshi and Is Kalshi Legit — what traders need to know about platform choice, KYC and tax law.

26°C 100% 20°C or below 0% 21°C 0% 22°C 0% Volume: $135K Liquidity: $215K Closes: 22 Jul 2026
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Highest temperature in Paris on July 22?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Is Kalshi Legit) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle See live odds →
Polymarket (direct)
polymarket.com
100% 0% 0% Geo-blocked in US/UK/EU USDC, on-chain See live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD See live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR See live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) See live odds →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
26°C100%
20°C or below0%
21°C0%
22°C0%
23°C0%
24°C0%
25°C0%
27°C0%
28°C0%
29°C0%
30°C or higher0%

Market context

Paris-Le Bourget Airport’s highest temperature on 22 July is the settlement driver, and the current 0% implied chance points to a market that is effectively pricing no move into the higher bins at the margin. For context, Paris in July is usually warm rather than extreme: one forecast compilation for the month puts typical highs around 26°C, with temperatures often ranging from the mid-teens overnight to the mid-20s in the daytime, which makes the 25°C and 26°C bands plausible reference points for a normal summer day.[2] The market page itself currently shows 25°C and 26°C as the joint frontrunners at 50% each, suggesting a very tight split rather than a strong directional view.[1]

Comparable summer-heat episodes matter because Paris can still break away from seasonal norms when broader European heatwaves intensify. Le Monde reported in late June that France had just experienced record-breaking heat and that daytime highs around 40°C to 42°C were possible in the worst-affected areas, while also quoting climatologist Christophe Cassou that forecasts beyond about 10 days are not reliable enough to rule in or out a July heatwave so far ahead.[3] For this market, the key read-through is that the event is not about an average Paris temperature, but the single highest reading at a specific airport station, so short-lived spikes, cloud cover, wind direction and timing within the day can matter more than the broader city feel.

On accessibility and regulation, a buyer facing no-KYC up to $1,500 can usually enter with minimal identity checks, but that does not change the market’s legal perimeter: in Germany, the GlüStV framework is relevant because it treats gambling-style products as regulated activity, while in the US the CFTC’s reach matters if a platform is structured as a derivatives venue or targets US persons. For this specific market, the practical consequence is that access can be lightweight at low size, yet account limits, jurisdiction screening and payment rails may still determine who can participate and whether settlement exposure is available at all.

Sources: 1 · 2 · 3 · 4

Methodology

This overview of Highest temperature in Paris on July 22? 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 Kalshi Legit 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. Is Kalshi Legit 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. Is Kalshi Legit 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.
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