Highest temperature in Manila on July 1?

Platform comparison

Market context

On 1 July 2026, the Ninoy Aquino International Airport in Manila will record its peak daytime temperature, a real-world event that determines the outcome of a prediction market currently implying a 0% chance of any specific high-temperature range. Historical data shows Manila’s July daytime highs typically reach 31°C, with the wet season (June–October) bringing frequent showers and average temperatures between 26°C and 31°C [1][2]. The hottest months in Manila are March and April, not July, and July is marked by heavy rainfall rather than extreme heat [2]. An all-time record of 38.8°C was logged in Metro Manila in April 2024, but July has never approached such extremes [9]. This context explains why the market assigns near-zero probability to high-temperature outcomes: July is climatologically cool relative to the dry season’s peak heat.

Traders should monitor PAGASA’s daily heat index forecasts and Wunderground’s real-time temperature logs for the airport station, as sudden shifts in cloud cover or rainfall could alter the day’s peak reading [7]. Recent PAGASA data indicates heat indices could reach 46°C in parts of the Philippines, though this reflects humidity-driven discomfort rather than actual air temperature [7]. The settlement window ends 12:00 UTC on 1 July 2026, so any late-morning temperature spike must be captured before that deadline. When comparing platforms, Polymarket displays implied probabilities (like the current 0% YES), while Kalshi and Betfair use decimal odds, which can obscure low-probability events. Fee structures also diverge: Polymarket charges no maker fees but may include liquidity costs, whereas Smarkets and Betfair apply commission on winnings. KYC requirements further separate these books, with Kalshi enforcing strict US residency rules while Polymarket remains globally accessible.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Highest temperature in Manila on July 1? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.