- Will the highest temperature in Wellington be 13°C on August 20?31¢
- Will the highest temperature in Wellington be 14°C on August 20?3¢
- Will the highest temperature in Wellington be 15°C on August 20?<1¢
- Will the highest temperature in Wellington be 16°C or higher on August 20?<1¢
- Will the highest temperature in Wellington be 6°C or below on August 20?<1¢
- Will the highest temperature in Wellington be 7°C on August 20?<1¢
- Will the highest temperature in Wellington be 8°C on August 20?<1¢
- Will the highest temperature in Wellington be 9°C on August 20?<1¢
- Will the highest temperature in Wellington be 10°C on August 20?<1¢
- Will the highest temperature in Wellington be 11°C on August 20?13¢
- Will the highest temperature in Wellington be 12°C on August 20?56¢
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 20 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.
Latest MetService and international model guidance, including GFS and ECMWF ensembles, indicate a maximum of 12°C in Wellington on August 20 under building high pressure, light variable winds, and mostly cloudy conditions that limit daytime warming. This aligns with the city's mid-August climatology, where average maxima hover near 12°C amid typical winter southerly influences and sea-breeze effects from Cook Strait. Recent polar air outbreaks have kept recent days near or below average, but no strong cold front or warm advection is forecast for the 20th, supporting the market's heavy weighting toward 12°C with modest upside risk to 13°C if breaks in cloud allow more insolation. Updated model runs and official briefings in the next 24 hours remain the key variables for traders.