Recent official forecasts from MetService and international models project a daytime maximum of 13–14°C for Wellington on August 21, aligning with the seasonal average high of roughly 12–13°C amid typical southerly flow and moderate cloud cover. NIWA’s seasonal outlook assigns the highest probability to near-average temperatures for the region, with no strong signals for anomalous warmth or cooling from current pressure patterns. Short-range model runs show limited spread, supporting the market’s heavy weighting toward 13–14°C outcomes as traders incorporate the latest observational trends and forecast stability just 48 hours out. Resolution hinges on the official daily maximum recorded at the Wellington station.
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 21?
Highest temperature in Wellington on August 21?
14°C 57%
13°C 33%
15°C 9%
12°C 3%
NEW
NEW
Aug 21, 2026
8°C or below
<1%
9°C
<1%
10°C
1%
11°C
1%
12°C
3%
13°C
33%
14°C
57%
15°C
9%
16°C
1%
17°C
<1%
18°C or higher
<1%
14°C 57%
13°C 33%
15°C 9%
12°C 3%
NEW
NEW
Aug 21, 2026
8°C or below
$261 Vol.
<1%
9°C
$359 Vol.
<1%
10°C
$361 Vol.
1%
11°C
$86 Vol.
1%
12°C
$286 Vol.
3%
13°C
$260 Vol.
33%
14°C
$484 Vol.
57%
15°C
$260 Vol.
9%
16°C
$67 Vol.
1%
17°C
$226 Vol.
<1%
18°C or higher
$186 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 21 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.Recent official forecasts from MetService and international models project a daytime maximum of 13–14°C for Wellington on August 21, aligning with the seasonal average high of roughly 12–13°C amid typical southerly flow and moderate cloud cover. NIWA’s seasonal outlook assigns the highest probability to near-average temperatures for the region, with no strong signals for anomalous warmth or cooling from current pressure patterns. Short-range model runs show limited spread, supporting the market’s heavy weighting toward 13–14°C outcomes as traders incorporate the latest observational trends and forecast stability just 48 hours out. Resolution hinges on the official daily maximum recorded at the Wellington station.
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 21 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 21 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 19, 2026, 12:56 AM ET
Volume
$2,835End Date
Aug 21, 2026Market Opened
Aug 19, 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 21 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.Recent official forecasts from MetService and international models project a daytime maximum of 13–14°C for Wellington on August 21, aligning with the seasonal average high of roughly 12–13°C amid typical southerly flow and moderate cloud cover. NIWA’s seasonal outlook assigns the highest probability to near-average temperatures for the region, with no strong signals for anomalous warmth or cooling from current pressure patterns. Short-range model runs show limited spread, supporting the market’s heavy weighting toward 13–14°C outcomes as traders incorporate the latest observational trends and forecast stability just 48 hours out. Resolution hinges on the official daily maximum recorded at the Wellington station.
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 21 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 21 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
$2,835End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Recent official forecasts from MetService and international models project a daytime maximum of 13–14°C for Wellington on August 21, aligning with the seasonal average high of roughly 12–13°C amid typical southerly flow and moderate cloud cover. NIWA’s seasonal outlook assigns the highest probability to near-average temperatures for the region, with no strong signals for anomalous warmth or cooling from current pressure patterns. Short-range model runs show limited spread, supporting the market’s heavy weighting toward 13–14°C outcomes as traders incorporate the latest observational trends and forecast stability just 48 hours out. Resolution hinges on the official daily maximum recorded at the Wellington station.
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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