Recent MetService and global model consensus points to a daytime maximum of 14–15 °C for Wellington on 19 May, keeping the two leading outcomes closely matched. Mid-autumn conditions in the Southern Hemisphere feature moderate southerly winds across Cook Strait and variable cloud cover that limit solar heating, anchoring temperatures near the long-term May average high. Small differences in steering flow or brief clear spells could shift the peak by a degree either way, while stronger northerly advection remains the main variable that would favor the 15 °C band. Official observations at Wellington International Airport will resolve the market once final data are recorded.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Wellington on May 19?
14°C 42%
15°C 34%
13°C 14%
16°C 6%
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
3%
12°C
3%
13°C
14%
14°C
42%
15°C
34%
16°C
6%
17°C
4%
18°C or higher
1%
14°C 42%
15°C 34%
13°C 14%
16°C 6%
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
3%
12°C
3%
13°C
14%
14°C
42%
15°C
34%
16°C
6%
17°C
4%
18°C or higher
1%
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: May 17, 2026, 12:04 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNThe 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/NZWNRecent MetService and global model consensus points to a daytime maximum of 14–15 °C for Wellington on 19 May, keeping the two leading outcomes closely matched. Mid-autumn conditions in the Southern Hemisphere feature moderate southerly winds across Cook Strait and variable cloud cover that limit solar heating, anchoring temperatures near the long-term May average high. Small differences in steering flow or brief clear spells could shift the peak by a degree either way, while stronger northerly advection remains the main variable that would favor the 15 °C band. Official observations at Wellington International Airport will resolve the market once final data are recorded.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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