Trader consensus on Polymarket has locked in a near-certain 100% implied probability for a highest temperature of 17°C in Wellington on April 1, driven by official MetService midday observations and NIWA Wellington Airport data confirming daytime peaks at exactly 17°C under a dominant high-pressure ridge fostering clear skies, light northerlies, and a chilly morning start that limited further warming. Autumn climatology supports this, with April averages hovering around 17–18°C amid neutral ENSO conditions reducing extremes. Model ensembles from MetService aligned precisely with outcomes, showing no intensification potential. Realistic challenges—a rare late foehn wind surge or data revision from secondary stations—appear improbable as evening cools set in, with final NIWA daily summaries due post-midnight to seal resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Wellington on April 1?
Highest temperature in Wellington on April 1?
17°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$272,381 Vol.
$272,381 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
Yes
18°C
No
19°C
No
20°C or higher
No
17°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$272,381 Vol.
$272,381 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
Yes
18°C
No
19°C
No
20°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Wellington Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/nz/wellington/NZWN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Mar 29, 2026, 2:18 PM ET
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Wellington Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/nz/wellington/NZWN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has locked in a near-certain 100% implied probability for a highest temperature of 17°C in Wellington on April 1, driven by official MetService midday observations and NIWA Wellington Airport data confirming daytime peaks at exactly 17°C under a dominant high-pressure ridge fostering clear skies, light northerlies, and a chilly morning start that limited further warming. Autumn climatology supports this, with April averages hovering around 17–18°C amid neutral ENSO conditions reducing extremes. Model ensembles from MetService aligned precisely with outcomes, showing no intensification potential. Realistic challenges—a rare late foehn wind surge or data revision from secondary stations—appear improbable as evening cools set in, with final NIWA daily summaries due post-midnight to seal resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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