This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 26 Aug '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zggg To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Thunderstorms and persistent cloud cover from an active monsoon trough are the dominant factors capping Guangzhou's August 26 maximum near 31–32 °C. Multiple forecast models converge on widespread convective activity with 80–90% rain probability and totals exceeding 10 mm, which limits solar insolation and drives evaporative cooling that suppresses afternoon peaks. This aligns with the broader late-summer pattern of elevated humidity (often >80%) and modest steering winds that favor scattered rather than clearing conditions. Historical August climatology shows averages near 33 °C, but the ongoing wet regime—building on July’s record rainfall—has already produced similar moderated highs. The tight market spread between 31 °C and 33 °C reflects uncertainty in the precise timing and intensity of cloud breaks or localized heating before peak convection; a slightly delayed or weaker rain band could allow brief warming toward 33 °C, while earlier or heavier showers would favor 30–31 °C. Updated NMC or CMA model runs and radar trends on the 26th will be the key resolution drivers.