Official forecasts from MetService and other agencies project a daytime maximum of 9°C in Wellington on August 17 under persistent southerly winds and scattered showers, aligning with near-average winter conditions per NIWA’s seasonal outlook. Model consensus favors this range given current atmospheric patterns, including cool air advection and limited solar heating, though slight variations in cloud cover or wind strength could support a 10°C peak. These developments explain the market-implied probabilities favoring 9–10°C outcomes, with traders incorporating historical August maxima around 11–12°C and the low likelihood of significant warming before resolution. Updated model runs and overnight observations will provide further clarity ahead of the day’s close.
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 17?
10°C 50%
9°C 41%
8°C 5%
11°C 4%
$15,782 Vol.
$15,782 Vol.
4°C or below
<1%
5°C
<1%
6°C
<1%
7°C
2%
8°C
5%
9°C
41%
10°C
50%
11°C
4%
12°C
2%
13°C
1%
14°C or higher
<1%
10°C 50%
9°C 41%
8°C 5%
11°C 4%
$15,782 Vol.
$15,782 Vol.
4°C or below
<1%
5°C
<1%
6°C
<1%
7°C
2%
8°C
5%
9°C
41%
10°C
50%
11°C
4%
12°C
2%
13°C
1%
14°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 17 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 15, 2026, 4:04 PM 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 17 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 forecasts from MetService and other agencies project a daytime maximum of 9°C in Wellington on August 17 under persistent southerly winds and scattered showers, aligning with near-average winter conditions per NIWA’s seasonal outlook. Model consensus favors this range given current atmospheric patterns, including cool air advection and limited solar heating, though slight variations in cloud cover or wind strength could support a 10°C peak. These developments explain the market-implied probabilities favoring 9–10°C outcomes, with traders incorporating historical August maxima around 11–12°C and the low likelihood of significant warming before resolution. Updated model runs and overnight observations will provide further clarity ahead of the day’s close.
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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