Trader consensus on Polymarket heavily favors a Wellington high of 21°C at 34%, with 20°C and 19°C close behind, reflecting tight forecast spreads from Metservice and international models like ECMWF and GFS. A building high-pressure ridge over New Zealand promises mild autumn warmth, pushing implied probabilities toward 20-21°C, consistent with March historical averages of 19.5°C but elevated by recent southerly wind moderation. Differentiation hinges on cloud cover timing: prolonged morning overcast could cap at 19°C by trapping cool air near the harbor, while clearer afternoons favor 21°C peaks. Ensemble models show 1-2°C uncertainty, with updates due tomorrow driving volatility.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Wellington on March 28?
Highest temperature in Wellington on March 28?
21°C 33%
20°C 27%
19°C 26%
18°C 16%
13°C or below
<1%
14°C
1%
15°C
3%
16°C
1%
17°C
5%
18°C
10%
19°C
26%
20°C
27%
21°C
35%
22°C
6%
23°C or higher
7%
21°C 33%
20°C 27%
19°C 26%
18°C 16%
13°C or below
<1%
14°C
1%
15°C
3%
16°C
1%
17°C
5%
18°C
10%
19°C
26%
20°C
27%
21°C
35%
22°C
6%
23°C or higher
7%
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 24, 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 34%, with 20°C and 19°C close behind, reflecting tight forecast spreads from Metservice and international models like ECMWF and GFS. A building high-pressure ridge over New Zealand promises mild autumn warmth, pushing implied probabilities toward 20-21°C, consistent with March historical averages of 19.5°C but elevated by recent southerly wind moderation. Differentiation hinges on cloud cover timing: prolonged morning overcast could cap at 19°C by trapping cool air near the harbor, while clearer afternoons favor 21°C peaks. Ensemble models show 1-2°C uncertainty, with updates due tomorrow driving volatility.
Experimental AI-generated summary referencing Polymarket data · Updated
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