Recent forecast models from MetService and international sources project overnight lows for Wellington on September 9 near 8–10°C under developing northwesterlies and partly cloudy conditions, driving the near-even split between 12°C-or-higher (46.0%) and 2°C-or-below (45.5%) outcomes. Coastal exposure amplifies sensitivity to wind shifts and cloud cover, with southerly flows favoring sharper cooling while northerlies moderate temperatures; historical September minima average around 7–9°C. Model consensus remains moderate with limited spread, yet small revisions in pressure gradients or timing of frontal passages could swing the daily minimum across key thresholds before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Wellington on September 9?
2°C or below 89%
12°C or higher 89%
8°C 50%
5°C 27%
2°C or below
89%
3°C
7%
4°C
26%
5°C
27%
6°C
27%
7°C
27%
8°C
50%
9°C
1%
10°C
5%
11°C
1%
12°C or higher
89%
2°C or below 89%
12°C or higher 89%
8°C 50%
5°C 27%
2°C or below
89%
3°C
7%
4°C
26%
5°C
27%
6°C
27%
7°C
27%
8°C
50%
9°C
1%
10°C
5%
11°C
1%
12°C or higher
89%
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.
Market Opened: Sep 7, 2026, 12:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=nzwnResolver
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=nzwnResolver
0x69c47De9D...Recent forecast models from MetService and international sources project overnight lows for Wellington on September 9 near 8–10°C under developing northwesterlies and partly cloudy conditions, driving the near-even split between 12°C-or-higher (46.0%) and 2°C-or-below (45.5%) outcomes. Coastal exposure amplifies sensitivity to wind shifts and cloud cover, with southerly flows favoring sharper cooling while northerlies moderate temperatures; historical September minima average around 7–9°C. Model consensus remains moderate with limited spread, yet small revisions in pressure gradients or timing of frontal passages could swing the daily minimum across key thresholds before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions