Trader consensus on Polymarket heavily favors a Wellington high of 21°C at 31% implied probability, driven by MetService's latest forecast pinning the March 23 maximum there amid a high-pressure ridge stabilizing mild autumn conditions. Closely trailing at 25% and 20.5% odds for 22°C and 20°C reflect ensemble model divergences—ECMWF leaning slightly warmer with potential afternoon clearing, while GFS emphasizes persistent southerlies capping peaks via coastal cooling. Historical March norms around 20°C, combined with low wind shear forecasts, differentiate these from rarer 23°C+ outliers (5.1%), as sea breezes historically moderate extremes in this wind-prone capital; watch tomorrow's 12Z updates for resolution shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Wellington on March 23?
Highest temperature in Wellington on March 23?
21°C 32%
22°C 27%
20°C 20%
19°C 17%
$18,973 Vol.
$18,973 Vol.
13°C or below
<1%
14°C
<1%
15°C
1%
16°C
<1%
17°C
1%
18°C
3%
19°C
17%
20°C
20%
21°C
32%
22°C
27%
23°C or higher
6%
21°C 32%
22°C 27%
20°C 20%
19°C 17%
$18,973 Vol.
$18,973 Vol.
13°C or below
<1%
14°C
<1%
15°C
1%
16°C
<1%
17°C
1%
18°C
3%
19°C
17%
20°C
20%
21°C
32%
22°C
27%
23°C or higher
6%
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 on Polymarket heavily favors a Wellington high of 21°C at 31% implied probability, driven by MetService's latest forecast pinning the March 23 maximum there amid a high-pressure ridge stabilizing mild autumn conditions. Closely trailing at 25% and 20.5% odds for 22°C and 20°C reflect ensemble model divergences—ECMWF leaning slightly warmer with potential afternoon clearing, while GFS emphasizes persistent southerlies capping peaks via coastal cooling. Historical March norms around 20°C, combined with low wind shear forecasts, differentiate these from rarer 23°C+ outliers (5.1%), as sea breezes historically moderate extremes in this wind-prone capital; watch tomorrow's 12Z updates for resolution shifts.
Experimental AI-generated summary referencing Polymarket data · Updated
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