Highest temperature in Wellington on June 25?

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Market context

The underlying event is a forecast for Wellington’s highest temperature on 25 June 2026, with the crowd assigning zero probability to any specific range. This reflects the extreme volatility of June weather in New Zealand, where daily highs swing between 11°C and 19°C depending on cloud cover and wind direction. Historical data from June 2025 shows similar variability, with temperatures fluctuating by up to 5°C within single days at Wellington International Airport[3]. Even in June 2026, forecasts predict highs ranging from 51°F to 60°F, underscoring the difficulty of pinpointing an exact maximum[6].

Traders should monitor MetService NZ’s real-time updates, which recently confirmed Wellington has already surpassed its record June maximum with temperatures over 19°C[2]. The market leans heavily on this catalyst, as official declarations of record-breaking heat often precede settlement. Watch for scheduled climate announcements from the New Zealand government, particularly any upcoming declarations on seasonal temperature trends or campaign-finance disclosures related to environmental policy. These could shift crowd-implied probabilities if they signal sustained warming patterns. A recent MetService update reinforces the likelihood of continued record activity, making it the primary dependency for this market[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Wellington on June 25? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

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On Election Predictions UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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What does it cost to trade on Election Predictions UK?

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Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

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