Wellington's mid-winter temperature on July 21 will hinge on the strength of northerly flow versus any southerly change, with current official forecasts from MetService and others pointing to a daytime maximum near 12–13 °C under partly cloudy skies. These outcomes sit close in the market because ensemble guidance shows modest warm advection and limited cloud cover, keeping highs near the July climatological average of 11–13 °C rather than allowing stronger cooling. A stronger southerly shift or increased marine layer would favor the 12 °C bin, while clearer, milder conditions could edge toward 13 °C or briefly 14 °C; updated model runs and official guidance issued in the next 48 hours will tighten the range 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 July 21?
Highest temperature in Wellington on July 21?
12°C 71%
11°C 10.3%
13°C 9%
10°C 3.4%
NEW
$53,264 Vol.
NEW
$53,264 Vol.
Jul 21, 2026
7°C or below
<1%
8°C
<1%
9°C
<1%
10°C
3%
11°C
10%
12°C
71%
13°C
9%
14°C
1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
12°C 71%
11°C 10.3%
13°C 9%
10°C 3.4%
NEW
$53,264 Vol.
NEW
$53,264 Vol.
Jul 21, 2026
7°C or below
$175 Vol.
<1%
8°C
$1,228 Vol.
<1%
9°C
$1,196 Vol.
<1%
10°C
$3,523 Vol.
3%
11°C
$21,221 Vol.
10%
12°C
$9,326 Vol.
71%
13°C
$6,915 Vol.
9%
14°C
$6,109 Vol.
1%
15°C
$2,692 Vol.
<1%
16°C
$419 Vol.
<1%
17°C or higher
$459 Vol.
<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 Jul '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.Wellington's mid-winter temperature on July 21 will hinge on the strength of northerly flow versus any southerly change, with current official forecasts from MetService and others pointing to a daytime maximum near 12–13 °C under partly cloudy skies. These outcomes sit close in the market because ensemble guidance shows modest warm advection and limited cloud cover, keeping highs near the July climatological average of 11–13 °C rather than allowing stronger cooling. A stronger southerly shift or increased marine layer would favor the 12 °C bin, while clearer, milder conditions could edge toward 13 °C or briefly 14 °C; updated model runs and official guidance issued in the next 48 hours will tighten the range ahead of market resolution.
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 Jul '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.
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: Jul 19, 2026, 12:03 AM ET
Volume
$53,264End Date
Jul 21, 2026Market Opened
Jul 19, 2026, 12:03 AM ETResolution 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 Jul '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.Wellington's mid-winter temperature on July 21 will hinge on the strength of northerly flow versus any southerly change, with current official forecasts from MetService and others pointing to a daytime maximum near 12–13 °C under partly cloudy skies. These outcomes sit close in the market because ensemble guidance shows modest warm advection and limited cloud cover, keeping highs near the July climatological average of 11–13 °C rather than allowing stronger cooling. A stronger southerly shift or increased marine layer would favor the 12 °C bin, while clearer, milder conditions could edge toward 13 °C or briefly 14 °C; updated model runs and official guidance issued in the next 48 hours will tighten the range ahead of market resolution.
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 Jul '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.
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
$53,264End Date
Jul 21, 2026Market Opened
Jul 19, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Wellington's mid-winter temperature on July 21 will hinge on the strength of northerly flow versus any southerly change, with current official forecasts from MetService and others pointing to a daytime maximum near 12–13 °C under partly cloudy skies. These outcomes sit close in the market because ensemble guidance shows modest warm advection and limited cloud cover, keeping highs near the July climatological average of 11–13 °C rather than allowing stronger cooling. A stronger southerly shift or increased marine layer would favor the 12 °C bin, while clearer, milder conditions could edge toward 13 °C or briefly 14 °C; updated model runs and official guidance issued in the next 48 hours will tighten the range 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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