Buenos Aires experiences autumn conditions in April as temperatures gradually transition from summer to cooler months. A specific prediction of exactly 16°C as the day's high reflects the seasonal patterns of the Southern Hemisphere's cooler season, where daily temperature variability is common. This market is resolvable through official meteorological data from Buenos Aires weather monitoring services, which record the daily high temperature with precision and transparency. The current YES odds of 0% indicate strong market consensus that the highest temperature on April 20 will not reach exactly 16°C. This expectation reflects typical day-to-day temperature fluctuations in Buenos Aires during autumn, where highs commonly vary several degrees. A 16°C maximum is relatively cool for the Buenos Aires region even during this cooler season, suggesting the market anticipates warmer conditions on this specific date. Resolution occurs at midnight UTC on April 20, 2026, using verified weather station data from official sources as the authoritative reference. These recurring daily temperature markets provide precise trading opportunities for weather pattern analysts and traders tracking seasonal variations in major metropolitan areas worldwide.