Recent forecasts from Singapore's Meteorological Service indicate southwest monsoon conditions with localized thundery showers expected in the afternoon of September 22, which typically cap maximum temperatures by increasing cloud cover and evaporative cooling. Official outlooks project daily highs of 33–34°C, though model consensus and recent observations—such as the 34.6°C peak on September 19 followed by scattered rain—suggest showers may keep the highest reading near 32°C. Humidity levels above 70% and winds from the south or southeast further moderate daytime heating. Traders appear to weigh these short-term convective patterns more heavily than broader seasonal averages, with resolution depending on the official maximum recorded at Changi or other stations.