Highest temperature in Wellington on July 20?

Platform comparison

Market context

Wellington, New Zealand will experience its peak daily temperature on 20 July 2026 at the Wellington International Airport Station, a midwinter day when maximums typically hover near 10–14°C. The market resolves to the Celsius range containing that highest reading, sourced from Wunderground’s daily history for NZWN. With the crowd-implied probability at 0% for any “YES” outcome, the market currently implies no chance of the event occurring, though the binary framing here is unusual: the event is the temperature itself, not a threshold breach, suggesting the 0% may reflect a misaligned contract structure or a placeholder before range definitions are set.

Historically, Wellington’s July highs rarely exceed 16°C, with the all-time July maximum at NZWN recorded at 17.2°C in 1945; since 2000, no July day has surpassed 16.5°C. Comparable midwinter peaks in similar coastal cities (e.g., Auckland, Sydney) show consistent clustering below 17°C, reinforcing that extreme outliers are improbable. This thermal ceiling explains why traders may assign near-zero probability to any range above 17°C, while lower ranges remain contested.

Traders should monitor the 24-hour forecast from MetService New Zealand and Wunderground’s real-time updates for NZWN on 20 July, particularly any unseasonal southerly warm advection or cloud-clearing events that could push temperatures higher. A sudden shift in wind pattern or a rare inland heat pulse could alter the outcome, though such events are statistically rare in July. No major announcements or scheduled dependencies currently affect this forecast, but real-time data from MetService’s daily bulletins will be the primary catalyst for price movement as the settlement window closes at 12:00 UTC on 20 July 2026.

Methodology

This page compares Highest temperature in Wellington on July 20? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.

Resolution & payout

Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).

FAQ

How does Klarna deposit work on Polymarket Klarna UK?

You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.

Can I deposit with a credit card?

Yes, Visa and Mastercard. Credit card deposits carry a ~2.5% acquirer surcharge (standard for card payments). Apple Pay and Google Pay run on the same card rails — same surcharge.

What's the minimum deposit?

10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).

How do withdrawals work?

Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).

Are payment details protected?

Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.