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icon for Lowest temperature in Wellington on September 18?

Lowest temperature in Wellington on September 18?

icon for Lowest temperature in Wellington on September 18?

Lowest temperature in Wellington on September 18?

Sep 17

Sep 18

Sep 17

Sep 18

9°C 30%

8°C 27%

7°C 20%

10°C 19%

Polymarket
NEW

9°C 30%

8°C 27%

7°C 20%

10°C 19%

Polymarket
NEW

4°C or below

$0 Vol.

2%

5°C

$0 Vol.

5%

6°C

$0 Vol.

7%

7°C

$0 Vol.

20%

8°C

$0 Vol.

27%

9°C

$0 Vol.

30%

10°C

$0 Vol.

19%

11°C

$0 Vol.

11%

12°C

$0 Vol.

3%

13°C

$0 Vol.

2%

14°C or higher

$0 Vol.

2%

This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Wellington Intl Airport Station in degrees Celsius on 18 Sep '26. The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. 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 forecast consensus from models including GFS and ECMWF points to overnight minimum temperatures in Wellington settling near 7–8°C on September 18, driven by a southerly airflow following a frontal passage that clears skies and lowers dew points to around 5–6°C. Light to moderate southeast winds limit mixing, allowing enhanced radiative cooling after daytime highs near 14°C, while climatological September averages hover near 9–10°C. Trader positioning reflects tight spreads between 7°C and 8°C outcomes because small shifts in cloud cover or wind speed in the final 48-hour model runs could tip the observed low by 1°C either way. MetService and international updates through the weekend will provide key refinements ahead of resolution.

This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Wellington Intl Airport Station in degrees Celsius on 18 Sep '26.

The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn

If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.

In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.

To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.

This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.

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 lowest temperature recorded by NOAA at the Wellington Intl Airport Station in degrees Celsius on 18 Sep '26. The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. 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
$0
End Date
Sep 18, 2026
Market Opened
Sep 16, 2026, 12:29 AM ET

Resolution Source

https://www.weather.gov/wrh/timeseries?site=nzwn

Resolver

0x69c47De9D...
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Wellington Intl Airport Station in degrees Celsius on 18 Sep '26. The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. 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 forecast consensus from models including GFS and ECMWF points to overnight minimum temperatures in Wellington settling near 7–8°C on September 18, driven by a southerly airflow following a frontal passage that clears skies and lowers dew points to around 5–6°C. Light to moderate southeast winds limit mixing, allowing enhanced radiative cooling after daytime highs near 14°C, while climatological September averages hover near 9–10°C. Trader positioning reflects tight spreads between 7°C and 8°C outcomes because small shifts in cloud cover or wind speed in the final 48-hour model runs could tip the observed low by 1°C either way. MetService and international updates through the weekend will provide key refinements ahead of resolution.

This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Wellington Intl Airport Station in degrees Celsius on 18 Sep '26.

The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn

If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.

In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.

To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.

This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.

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 lowest temperature recorded by NOAA at the Wellington Intl Airport Station in degrees Celsius on 18 Sep '26. The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=nzwn If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. 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
$0
End Date
Sep 18, 2026
Market Opened
Sep 16, 2026, 12:29 AM ET

Resolution Source

https://www.weather.gov/wrh/timeseries?site=nzwn

Resolver

0x69c47De9D...

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Frequently Asked Questions

"Lowest temperature in Wellington on September 18?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "9°C" at 30%, followed by "8°C" at 27%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 30¢ implies that the market collectively assigns a 30% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Lowest temperature in Wellington on September 18?" is a newly created market on Polymarket, launched on Sep 16, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Lowest temperature in Wellington on September 18?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Lowest temperature in Wellington on September 18?" is "9°C" at 30%, meaning the market assigns a 30% chance to that outcome. The next closest outcome is "8°C" at 27%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Lowest temperature in Wellington on September 18?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.