Recent MetService and international model guidance indicate a maximum of 14–15 °C in Wellington on 11 September under mainly fine conditions, with southerlies shifting to northwesterlies and only a low chance of an afternoon shower. This aligns with typical early-spring climatology for the region, where average daily highs reach about 14 °C amid variable westerly flow and occasional high-pressure ridges. Current ensemble consensus shows limited spread, with no strong warm advection or cold outbreak expected to push extremes beyond the 13–16 °C window. Traders appear to be weighting the official 14 °C forecast most heavily while allowing modest probability for a 15 °C peak if daytime insolation exceeds expectations. The next model runs and any updated MetService briefing will provide the final data ahead of market resolution.
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 September 11?
15°C 56%
14°C 30%
16°C 12%
13°C 3%
$11,213 Vol.
$11,213 Vol.
9°C or below
<1%
10°C
<1%
11°C
<1%
12°C
2%
13°C
3%
14°C
30%
15°C
56%
16°C
12%
17°C
<1%
18°C
<1%
19°C or higher
<1%
15°C 56%
14°C 30%
16°C 12%
13°C 3%
$11,213 Vol.
$11,213 Vol.
9°C or below
<1%
10°C
<1%
11°C
<1%
12°C
2%
13°C
3%
14°C
30%
15°C
56%
16°C
12%
17°C
<1%
18°C
<1%
19°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest 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 9, 2026, 12:56 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 highest 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 MetService and international model guidance indicate a maximum of 14–15 °C in Wellington on 11 September under mainly fine conditions, with southerlies shifting to northwesterlies and only a low chance of an afternoon shower. This aligns with typical early-spring climatology for the region, where average daily highs reach about 14 °C amid variable westerly flow and occasional high-pressure ridges. Current ensemble consensus shows limited spread, with no strong warm advection or cold outbreak expected to push extremes beyond the 13–16 °C window. Traders appear to be weighting the official 14 °C forecast most heavily while allowing modest probability for a 15 °C peak if daytime insolation exceeds expectations. The next model runs and any updated MetService briefing will provide the final data ahead of market resolution.
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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