Recent model consensus from the Indonesian Meteorological, Climatological, and Geophysical Agency (BMKG) and global ensembles points to a Jakarta maximum near 33 °C on May 18, with afternoon sea-breeze convergence and scattered convective clouds expected to limit further warming after a relatively clear morning. This pattern, typical of the late wet-to-dry transition over western Java, produces daily highs that cluster tightly between 32 °C and 34 °C depending on exact cloud timing and boundary-layer humidity. Historical Kemayoran observations confirm this narrow range as the modal outcome for mid-May, while the modest probability mass on 34 °C reflects the chance of slightly drier conditions or delayed convection allowing an extra degree of insolation before storms develop. Updated BMKG guidance and next-model runs tomorrow morning will be the key inputs for any late repricing.
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 18?
33°C 38%
34°C 28%
32°C 19%
35°C 15%
$14,190 Vol.
$14,190 Vol.
27°C or below
<1%
28°C
<1%
29°C
<1%
30°C
1%
31°C
4%
32°C
19%
33°C
38%
34°C
28%
35°C
15%
36°C
2%
37°C or higher
<1%
33°C 38%
34°C 28%
32°C 19%
35°C 15%
$14,190 Vol.
$14,190 Vol.
27°C or below
<1%
28°C
<1%
29°C
<1%
30°C
1%
31°C
4%
32°C
19%
33°C
38%
34°C
28%
35°C
15%
36°C
2%
37°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 16, 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 model consensus from the Indonesian Meteorological, Climatological, and Geophysical Agency (BMKG) and global ensembles points to a Jakarta maximum near 33 °C on May 18, with afternoon sea-breeze convergence and scattered convective clouds expected to limit further warming after a relatively clear morning. This pattern, typical of the late wet-to-dry transition over western Java, produces daily highs that cluster tightly between 32 °C and 34 °C depending on exact cloud timing and boundary-layer humidity. Historical Kemayoran observations confirm this narrow range as the modal outcome for mid-May, while the modest probability mass on 34 °C reflects the chance of slightly drier conditions or delayed convection allowing an extra degree of insolation before storms develop. Updated BMKG guidance and next-model runs tomorrow morning will be the key inputs for any late repricing.
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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