Jakarta, located near the equator in Indonesia, experiences a tropical climate with consistently hot and humid weather year-round. The question asks whether the daily high temperature will reach 28°C or below on May 2, 2026 — a threshold significantly below Jakarta's typical daily highs of 30-33°C during this season. The current 0% YES odds reflect trader confidence that temperatures will exceed this cool threshold. With monsoon season transitioning and urban heat island effects in the city, reaching such a low temperature would require substantial cloud cover and rainfall throughout the day. The market closes at midnight UTC on May 2, using official meteorological data. Historically, Jakarta rarely experiences daily highs below 28°C except during unusually heavy rainfall events or extreme weather anomalies.
Deep dive — what moves this market
Jakarta, Indonesia's capital and largest city, sits on the northwest coast of Java at approximately 6°S latitude with a tropical climate characterized by year-round warmth and high humidity. May represents a transition period between the wet season and the dry season, though significant rainfall can still occur. A daily high of 28°C or below would be exceptionally cool for Jakarta — the city's average maximum temperature during May typically hovers around 31-32°C, with afternoon highs frequently exceeding 32°C. For the temperature to remain at or below 28°C would require specific meteorological conditions: persistent cloud cover throughout the day, substantial rainfall that blocks solar radiation, or unusually strong winds enhancing evaporative cooling. The 0% YES odds indicate traders view these conditions as nearly impossible for May 2. This assessment reflects historical climate patterns and Jakarta's remarkable thermal consistency. The urban heat island effect, created by extensive development and concrete surfaces, typically raises temperatures 1-2°C above surrounding rural areas, making cooling even less likely in the city proper. Recent climate data shows increasing temperature trends overall. From a contrarian view, an unusually strong rain band or unexpected wind pattern could theoretically push the high below 28°C, but market participants are extremely confident this won't materialize. The market's modest volume ($5K liquidity) reflects its role as a daily recurring temperature prediction where most participants correctly assess the extreme unlikelihood of YES outcomes. This market type functions as a baseline reference for weather prediction accuracy.
What traders watch for
Historical May high temperatures in Jakarta: typically 30-33°C range, rarely below 28°C
May 2 rainfall forecast: heavy precipitation would block solar radiation and lower the high temperature
Urban heat island effect: Jakarta's development raises temperatures 1-2°C above surrounding areas
Wind speed and direction: strong sea breezes could enhance evaporative cooling during the day
How does this market resolve?
Market resolves based on the highest temperature recorded in Jakarta on May 2, 2026. YES wins if the high is 28°C or below; NO wins if it exceeds 28°C. Official meteorological data from Indonesia's weather service determines the outcome.
Prediction markets aggregate trader expectations into real-time probability estimates. On Polymarket Trade, every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. This page summarizes the market state for readers arriving from search; for live trading (place orders, see order book depth, execute a trade) open the full interactive page linked above.
