Recent ensemble forecasts from Indonesia’s BMKG and regional models indicate a likely maximum temperature of 33–35 °C in Jakarta on May 19, driven by the early onset of the dry season, elevated solar insolation, and pronounced urban heat-island effects that amplify daytime warming. High uncertainty reflected in the spread across 32–36 °C outcomes stems from variable low-level moisture, possible afternoon convective cloud build-up, and subtle shifts in steering winds that could either enhance or suppress peak readings. Climatological baselines for mid-May place typical highs near 31–32 °C, yet current drier-than-average conditions support the modest upward tilt traders have priced in; the next BMKG observational update and refined model runs will provide the clearest signals ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Jakarta on May 19?
34°C 32%
33°C 23%
35°C 18%
32°C 13%
28°C or below
<1%
29°C
1%
30°C
4%
31°C
6%
32°C
13%
33°C
23%
34°C
32%
35°C
18%
36°C
3%
37°C
1%
38°C or higher
<1%
34°C 32%
33°C 23%
35°C 18%
32°C 13%
28°C or below
<1%
29°C
1%
30°C
4%
31°C
6%
32°C
13%
33°C
23%
34°C
32%
35°C
18%
36°C
3%
37°C
1%
38°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Halim Perdanakusuma Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/id/jakarta/WIHH.
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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 17, 2026, 12:06 AM ET
Resolution Source
https://www.wunderground.com/history/daily/id/jakarta/WIHHThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Halim Perdanakusuma Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/id/jakarta/WIHH.
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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/id/jakarta/WIHHRecent ensemble forecasts from Indonesia’s BMKG and regional models indicate a likely maximum temperature of 33–35 °C in Jakarta on May 19, driven by the early onset of the dry season, elevated solar insolation, and pronounced urban heat-island effects that amplify daytime warming. High uncertainty reflected in the spread across 32–36 °C outcomes stems from variable low-level moisture, possible afternoon convective cloud build-up, and subtle shifts in steering winds that could either enhance or suppress peak readings. Climatological baselines for mid-May place typical highs near 31–32 °C, yet current drier-than-average conditions support the modest upward tilt traders have priced in; the next BMKG observational update and refined model runs will provide the clearest signals ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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