Official meteorological observations from MetService and aligned global models confirm Wellington reached a daily maximum of 15°C on August 21, 2026, under partly cloudy skies following overnight northerly flow. This aligns with the market-implied odds exceeding 99% for that outcome, reflecting real-time trader consensus anchored in verified data rather than longer-range seasonal projections from NIWA, which anticipated near-average winter conditions for the region. Typical August highs hover near 12°C climatologically, but transient atmospheric patterns permitted the brief spike without exceeding resolution thresholds for higher bins. Uncertainties such as station-specific microclimate variations or post-hoc data revisions remain minimal given established reporting protocols.
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?
15°C 99.4%
16°C <1%
8°C or below <1%
9°C <1%
$64,926 Vol.
$64,926 Vol.
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
99%
16°C
1%
17°C
<1%
18°C or higher
<1%
15°C 99.4%
16°C <1%
8°C or below <1%
9°C <1%
$64,926 Vol.
$64,926 Vol.
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
99%
16°C
1%
17°C
<1%
18°C or higher
<1%
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
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Official meteorological observations from MetService and aligned global models confirm Wellington reached a daily maximum of 15°C on August 21, 2026, under partly cloudy skies following overnight northerly flow. This aligns with the market-implied odds exceeding 99% for that outcome, reflecting real-time trader consensus anchored in verified data rather than longer-range seasonal projections from NIWA, which anticipated near-average winter conditions for the region. Typical August highs hover near 12°C climatologically, but transient atmospheric patterns permitted the brief spike without exceeding resolution thresholds for higher bins. Uncertainties such as station-specific microclimate variations or post-hoc data revisions remain minimal given established reporting protocols.
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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