Highest temperature in Manila on June 30?

Platform comparison

Market context

The real-world event hinges on whether Ninoy Aquino International Airport records a peak temperature on 30 June 2026 that falls within a specific Celsius bracket, a question currently priced at 0% YES by the crowd. Historical June data for Manila shows daily highs typically ranging between 32°C and 34°C, with long-term averages settling near 32°C under very high heat and humidity[2]. Recent observations confirm this pattern, as Metro Manila hit 36.8°C on 21 June 2026, marking the hottest day of the year so far[6]. While Pagasa recently forecast a dangerous heat index of 44°C for late May, actual air temperatures rarely exceed 37°C, suggesting the 0% probability may reflect a specific bracket that is statistically improbable rather than a denial of heat itself[3].

Traders should monitor the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) daily bulletins for any sudden shifts in monsoon activity or tropical storm passages, which typically occur on 1.2 days per June and can suppress temperatures[2]. The settlement relies exclusively on Wunderground data for the airport station, meaning traders must watch for any data gaps or sensor anomalies that could delay resolution[2]. When comparing platforms like Polymarket against Kalshi or Betfair, the divergence is stark: Polymarket displays implied probabilities directly, whereas Kalshi uses decimal odds and Betfair relies on a fee structure that often differs for weather derivatives[1]. Furthermore, Kalshi mandates strict KYC and US residency, while Polymarket offers broader global access with a different fee model, making the 0% price point more accessible to international traders on the former platform.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Manila on June 30? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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.

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.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.