Wellington May 27 High: Fifteen Degrees Leads at 46%

Wellington’s weather market for May 27 lands in the middle of autumn, and the data is genuinely split. The 15°C outcome leads all outcomes at 46% implied probability, but that number reflects real uncertainty across a wide temperature range. Here’s what the measurements are telling us: late-May Wellington averages sit right in this neighborhood, and the market knows it.

The market question asks for the highest temperature in Wellington on May 27. The 15°C outcome trades at $0.46 YES and $0.54 NO. The market resolves at 12:00 UTC on May 27, 2026. Total trading volume stands at $15,511, with $11,539 of that moving in the last 24 hours.

How the Wellington Temperature Contract Works

This contract resolves YES if Wellington’s recorded daily maximum temperature on May 27 equals exactly 15°C. The resolution source is market resolution based on observed meteorological data. Alternative outcomes include 14°C, 16°C, 13°C, 12°C, 17°C, 18°C or higher, and several lower bands down to 8°C or below.

• 15°C (YES): $0.46 per share, 46% implied probability. Resolves YES if Wellington’s May 27 maximum hits exactly this reading.
• All other outcomes (NO): $0.54 combined, 54% probability. Resolves if the daily maximum lands on any other listed temperature.

The NO side pays out when Wellington’s maximum temperature on May 27 lands anywhere outside the 15°C band. Wellington’s autumn temperature distribution spreads across several degrees. The adjacent outcomes at 14°C and 16°C each carry real probability weight, meaning the 54% NO reflects a wide field of competing outcomes rather than a single strong rival scenario.

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Momentum and Market Signals

The momentum composite here is quiet. The 1-hour price change is flat at 0.0%, and the trend score of 28.32 signals low directional conviction. The market is pricing uncertainty, not science. No significant price movement has occurred since the contract opened, which tells us traders are waiting for short-range forecast updates rather than making bold directional bets.

Total volume of $15,511 is thin by prediction market standards, though the $11,539 in 24-hour volume suggests active positioning as resolution approaches. Liquidity sits at $8,054. Volume below $1M means price can move sharply on a single updated weather forecast or a late trader entering a position. This market is sensitive to last-minute meteorological data.

• The 1-hour and 24-hour momentum composite is flat, with no directional catalyst visible in recent trading activity.
• The $11,539 in 24-hour volume represents roughly 74% of total lifetime volume, confirming traders are most active as resolution closes in.
• Thin liquidity of $8,054 means a modest bet could shift the 15°C outcome price meaningfully before the noon resolution.
• The trend score of 28.32 is below the midpoint, suggesting the market holds a mild lean toward NO without strong conviction.
• Adjacent outcomes at 14°C and 16°C are the primary competitors splitting the NO-side probability pool.

Lines Analysis: Wellington’s Autumn Temperature Distribution

Wellington in late May sits in the heart of autumn. Mean daily maximum temperatures for the city in this period typically range from 13°C to 16°C, with 15°C sitting near the center of the historical distribution. That central positioning explains why 15°C attracts the largest share of probability among individual outcomes. The data doesn’t care about the politics of weather forecasting: it just says this temperature band is where Wellington often lands in late autumn.

What makes NO real is the spread across adjacent outcomes. A single degree in either direction pulls the resolution away from 15°C entirely. If a front moves through Wellington overnight or the day turns warmer than expected, 14°C or 16°C captures the result instead. Wellington’s notoriously variable wind conditions, including the famous Cook Strait northerlies and southerlies, mean a one-degree miss is entirely normal. The specific condition: Wellington’s max staying below 15°C or pushing above 15°C for any meteorological reason is enough to flip this market.

• MetService New Zealand forecast updates in the hours before resolution are the single most important price driver for this contract.
• A strengthening northerly flow would push Wellington’s maximum toward 16°C or 17°C, pressuring the 15°C outcome downward.
• A southerly change or front arrival would shift probability toward 14°C or 13°C outcomes, again hurting the 15°C position.
• Overnight low temperatures near 10°C or below would limit daytime heating and favor the lower-end outcomes.
• Clear skies and calm winds on the morning of May 27 would favor a maximum landing in the 15°C to 16°C range.

Total volume of $15,511 is modest. The data favors 15°C as the single most likely outcome but not as a high-confidence prediction. No single outcome commands strong plurality here, and the thin market means the final price reflects a relatively small number of informed traders rather than broad consensus.

LINES VERDICT

NARROW LEADER IN A WIDE FIELD

Wellington’s 15°C outcome holds the top individual probability in a genuinely fragmented market. The meteorological setup for late-May Wellington keeps multiple outcomes alive, and no single reading commands the market.

What the market says: At 46% implied probability, the market treats 15°C as the most likely single outcome but leaves more than half the probability on other temperatures. Thin liquidity and same-day resolution mean this price can shift sharply on a single forecast update before noon on May 27.

Key unknown: The MetService New Zealand short-range forecast and actual overnight low temperature on May 27 are the decisive inputs. A forecast revision in the hours before resolution would reprice this contract immediately.