Trader consensus favors a high of 20°C (26%) or 21°C (24%) in Wellington on March 23, reflecting MetService's latest forecast of 19-21°C under a high-pressure ridge promoting sunny skies and light northerlies. Closely trailing 19°C (22.5%) odds stem from GFS model runs hinting at cooling sea breezes in the afternoon, a common differentiator in Wellington's coastal microclimate where katabatic flows cap peaks. Warmer 22°C (17.5%) implied by ECMWF ensembles hinges on sustained northerlies persisting longer than historical March norms (average high 20.1°C). Divergent ensemble spreads and pending NIWA hourly guidance underscore 1-2°C uncertainty, keeping lower extremes below 10%.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Wellington on March 23?
Highest temperature in Wellington on March 23?
20°C 26%
21°C 26%
19°C 25%
22°C 22%
13°C or below
1%
14°C
1%
15°C
2%
16°C
7%
17°C
9%
18°C
9%
19°C
25%
20°C
26%
21°C
26%
22°C
18%
23°C or higher
8%
20°C 26%
21°C 26%
19°C 25%
22°C 22%
13°C or below
1%
14°C
1%
15°C
2%
16°C
7%
17°C
9%
18°C
9%
19°C
25%
20°C
26%
21°C
26%
22°C
18%
23°C or higher
8%
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 19, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Trader consensus favors a high of 20°C (26%) or 21°C (24%) in Wellington on March 23, reflecting MetService's latest forecast of 19-21°C under a high-pressure ridge promoting sunny skies and light northerlies. Closely trailing 19°C (22.5%) odds stem from GFS model runs hinting at cooling sea breezes in the afternoon, a common differentiator in Wellington's coastal microclimate where katabatic flows cap peaks. Warmer 22°C (17.5%) implied by ECMWF ensembles hinges on sustained northerlies persisting longer than historical March norms (average high 20.1°C). Divergent ensemble spreads and pending NIWA hourly guidance underscore 1-2°C uncertainty, keeping lower extremes below 10%.
Experimental AI-generated summary referencing Polymarket data · Updated
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