Current short-range forecasts from agencies including MetService and the Met Office indicate a maximum of around 10–12°C for Wellington on August 19, aligning with the market's heaviest weighting on 11°C. In mid-winter, the region's maritime climate features frequent westerly and southwesterly flows that moderate temperatures while allowing brief cold-air intrusions; NIWA's seasonal outlook assigns the highest probability to near-average conditions amid a developing El Niño pattern. Recent observations show chilly starts and variable cloud cover across the North Island, with no strong warming signals in the latest model runs. These factors keep the 10–12°C range dominant while leaving limited room for outliers.
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 August 19?
Highest temperature in Wellington on August 19?
11°C 47%
12°C 29%
10°C 16%
9°C 6%
NEW
NEW
Aug 19, 2026
5°C or below
1%
6°C
<1%
7°C
<1%
8°C
3%
9°C
6%
10°C
16%
11°C
47%
12°C
29%
13°C
3%
14°C
4%
15°C or higher
1%
11°C 47%
12°C 29%
10°C 16%
9°C 6%
NEW
NEW
Aug 19, 2026
5°C or below
$191 Vol.
1%
6°C
$181 Vol.
<1%
7°C
$59 Vol.
<1%
8°C
$5 Vol.
3%
9°C
$69 Vol.
6%
10°C
$174 Vol.
16%
11°C
$390 Vol.
47%
12°C
$212 Vol.
29%
13°C
$85 Vol.
3%
14°C
$5 Vol.
4%
15°C or higher
$24 Vol.
1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Wellington Intl Airport Station in degrees Celsius on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Wellington Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.Current short-range forecasts from agencies including MetService and the Met Office indicate a maximum of around 10–12°C for Wellington on August 19, aligning with the market's heaviest weighting on 11°C. In mid-winter, the region's maritime climate features frequent westerly and southwesterly flows that moderate temperatures while allowing brief cold-air intrusions; NIWA's seasonal outlook assigns the highest probability to near-average conditions amid a developing El Niño pattern. Recent observations show chilly starts and variable cloud cover across the North Island, with no strong warming signals in the latest model runs. These factors keep the 10–12°C range dominant while leaving limited room for outliers.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Wellington Intl Airport Station in degrees Celsius on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Wellington Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Wellington Intl Airport Station in degrees Celsius on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Wellington Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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: Aug 17, 2026, 12:56 AM ET
Volume
$1,395End Date
Aug 19, 2026Market Opened
Aug 17, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Wellington Intl Airport Station in degrees Celsius on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Wellington Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.Current short-range forecasts from agencies including MetService and the Met Office indicate a maximum of around 10–12°C for Wellington on August 19, aligning with the market's heaviest weighting on 11°C. In mid-winter, the region's maritime climate features frequent westerly and southwesterly flows that moderate temperatures while allowing brief cold-air intrusions; NIWA's seasonal outlook assigns the highest probability to near-average conditions amid a developing El Niño pattern. Recent observations show chilly starts and variable cloud cover across the North Island, with no strong warming signals in the latest model runs. These factors keep the 10–12°C range dominant while leaving limited room for outliers.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Wellington Intl Airport Station in degrees Celsius on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Wellington Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Wellington Intl Airport Station in degrees Celsius on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Wellington Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Volume
$1,395End Date
Aug 19, 2026Market Opened
Aug 17, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Current short-range forecasts from agencies including MetService and the Met Office indicate a maximum of around 10–12°C for Wellington on August 19, aligning with the market's heaviest weighting on 11°C. In mid-winter, the region's maritime climate features frequent westerly and southwesterly flows that moderate temperatures while allowing brief cold-air intrusions; NIWA's seasonal outlook assigns the highest probability to near-average conditions amid a developing El Niño pattern. Recent observations show chilly starts and variable cloud cover across the North Island, with no strong warming signals in the latest model runs. These factors keep the 10–12°C range dominant while leaving limited room for outliers.
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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