Trader sentiment favors 18°C (41.5%) as Wellington's highest temperature on March 19, driven by MetService's latest forecast indicating a daytime maximum near 18°C under a stabilizing high-pressure ridge suppressing warmth after recent southerly outflows. Ensemble models from ECMWF and GFS converge on mild conditions, with 70% implied probability for 17–19°C aligning with March historical averages of 19.2°C at Kelburn station but tempered by cool sea breezes and cloud cover. Recent developments include refined GFS runs overnight shifting odds from 19°C, while low probabilities for extremes reflect baseline variability—22°C+ occurs <5% historically in mid-March—and no signals of heatwaves or cold snaps from upstream patterns.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Wellington on March 19?
Highest temperature in Wellington on March 19?
18°C 42%
19°C 30%
17°C 19%
20°C 11%
$60,437 Vol.
$60,437 Vol.
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
3%
17°C
19%
18°C
42%
19°C
30%
20°C
11%
21°C
1%
22°C or higher
<1%
18°C 42%
19°C 30%
17°C 19%
20°C 11%
$60,437 Vol.
$60,437 Vol.
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
3%
17°C
19%
18°C
42%
19°C
30%
20°C
11%
21°C
1%
22°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: Mar 15, 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 sentiment favors 18°C (41.5%) as Wellington's highest temperature on March 19, driven by MetService's latest forecast indicating a daytime maximum near 18°C under a stabilizing high-pressure ridge suppressing warmth after recent southerly outflows. Ensemble models from ECMWF and GFS converge on mild conditions, with 70% implied probability for 17–19°C aligning with March historical averages of 19.2°C at Kelburn station but tempered by cool sea breezes and cloud cover. Recent developments include refined GFS runs overnight shifting odds from 19°C, while low probabilities for extremes reflect baseline variability—22°C+ occurs <5% historically in mid-March—and no signals of heatwaves or cold snaps from upstream patterns.
Experimental AI-generated summary referencing Polymarket data · Updated
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