Recent model runs and official guidance from MetService and NIWA highlight a transitional synoptic pattern over Wellington, with a high-pressure ridge giving way to a northward-advancing front that introduces variability in overnight radiative cooling and boundary-layer mixing. Northerly flow ahead of the system favors minimum temperatures near 11–12 °C by limiting clear-sky heat loss, while any earlier shift to southerlies or reduced cloud cover could enhance nocturnal cooling toward 8 °C or lower. Ensemble spreads in ECMWF and GFS runs remain wide for the 15–16 September window, reflecting uncertainty in exact frontal timing and wind speeds that directly control the daily minimum. Traders therefore assign nearly equal weight to sub-8 °C and 17 °C-plus outcomes, underscoring how small changes in advection versus local cooling rates can swing the recorded low across the market’s key thresholds.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in Wellington on September 16?
7°C or below 100%
17°C or higher 97%
9°C 40%
10°C 40%
7°C or below
100%
8°C
39%
9°C
40%
10°C
40%
11°C
40%
12°C
30%
13°C
40%
14°C
40%
15°C
40%
16°C
39%
17°C or higher
97%
7°C or below 100%
17°C or higher 97%
9°C 40%
10°C 40%
7°C or below
100%
8°C
39%
9°C
40%
10°C
40%
11°C
40%
12°C
30%
13°C
40%
14°C
40%
15°C
40%
16°C
39%
17°C or higher
97%
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.
Binuksan ang Market: Sep 14, 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 model runs and official guidance from MetService and NIWA highlight a transitional synoptic pattern over Wellington, with a high-pressure ridge giving way to a northward-advancing front that introduces variability in overnight radiative cooling and boundary-layer mixing. Northerly flow ahead of the system favors minimum temperatures near 11–12 °C by limiting clear-sky heat loss, while any earlier shift to southerlies or reduced cloud cover could enhance nocturnal cooling toward 8 °C or lower. Ensemble spreads in ECMWF and GFS runs remain wide for the 15–16 September window, reflecting uncertainty in exact frontal timing and wind speeds that directly control the daily minimum. Traders therefore assign nearly equal weight to sub-8 °C and 17 °C-plus outcomes, underscoring how small changes in advection versus local cooling rates can swing the recorded low across the market’s key thresholds.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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