**Cold southwesterly airflow and associated radiative cooling are the dominant drivers positioning 3°C or below as the leading market outcome for Wellington’s minimum temperature on September 23.** A series of cold fronts and prevailing southwesterlies, reinforced by an intensifying El Niño pattern favoring westerly flows, have advected cooler maritime polar air over New Zealand. This setup, combined with clearing skies after showers on the 22nd, promotes strong nocturnal heat loss under light winds and high pressure building behind the front. Official forecasts from MetService-aligned sources and models indicate overnight lows near 4–6°C (roughly 39–43°F), with the possibility of sub-4°C readings if winds ease further and dew points remain low. Historical September minima in Wellington average around 7–9°C, so this represents a notable cold anomaly. Traders appear to weight the latest model consensus and the timing of the spring equinox cold outbreak heavily, though minor forecast shifts in wind speed or cloud cover could still alter the final minimum before resolution.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jourLa température la plus basse à Wellington le 23 septembre ?
3°C ou moins 81%
7°C 40%
5°C 39%
6°C 39%
3°C ou moins
81%
4°C
37%
5°C
39%
6°C
39%
7°C
40%
8°C
31%
9°C
39%
10°C
39%
11°C
37%
12°C
37%
13°C ou plus
2%
3°C ou moins 81%
7°C 40%
5°C 39%
6°C 39%
3°C ou moins
81%
4°C
37%
5°C
39%
6°C
39%
7°C
40%
8°C
31%
9°C
39%
10°C
39%
11°C
37%
12°C
37%
13°C ou plus
2%
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Marché ouvert : Sep 21, 2026, 12:29 AM ET
Source de résolution
https://www.weather.gov/wrh/timeseries?site=nzwnRésolveur
0x69c47de9d...The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Source de résolution
https://www.weather.gov/wrh/timeseries?site=nzwnRésolveur
0x69c47de9d...**Cold southwesterly airflow and associated radiative cooling are the dominant drivers positioning 3°C or below as the leading market outcome for Wellington’s minimum temperature on September 23.** A series of cold fronts and prevailing southwesterlies, reinforced by an intensifying El Niño pattern favoring westerly flows, have advected cooler maritime polar air over New Zealand. This setup, combined with clearing skies after showers on the 22nd, promotes strong nocturnal heat loss under light winds and high pressure building behind the front. Official forecasts from MetService-aligned sources and models indicate overnight lows near 4–6°C (roughly 39–43°F), with the possibility of sub-4°C readings if winds ease further and dew points remain low. Historical September minima in Wellington average around 7–9°C, so this represents a notable cold anomaly. Traders appear to weight the latest model consensus and the timing of the spring equinox cold outbreak heavily, though minor forecast shifts in wind speed or cloud cover could still alter the final minimum before resolution.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jour

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