BMKG observations at Halim Perdanakusuma International Airport, the market's resolution source, confirm Jakarta's highest temperature reached 34°C on April 21, 2026, during midday peak solar insolation under partly cloudy skies with isolated light rain. This aligns with recent days' patterns, including April 20's 34°C high, driven by urban heat island effects, low humidity, and the onset of dry season suppressing convective cooling despite forecast models predicting caps around 30–32°C. April climatology averages 31°C highs (NOAA-aligned data), but 2026's persistent high-pressure ridge has elevated readings. With the day nearly complete and no late-afternoon heat burst observed, trader consensus at 100% implied probability for 34°C reflects locked-in observational data; only a rare measurement revision could challenge it.
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 April 21?
Highest temperature in Jakarta on April 21?
34°C 100.0%
27°C or below <1%
28°C <1%
29°C <1%
$53,529 Vol.
$53,529 Vol.
Apr 21, 2026
27°C or below
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
Yes
35°C
No
36°C
No
37°C or higher
No
34°C 100.0%
27°C or below <1%
28°C <1%
29°C <1%
$53,529 Vol.
$53,529 Vol.
Apr 21, 2026
27°C or below
$1,668 Vol.
No
28°C
$4,826 Vol.
No
29°C
$1,888 Vol.
No
30°C
$3,186 Vol.
No
31°C
$3,872 Vol.
No
32°C
$5,862 Vol.
No
33°C
$3,997 Vol.
No
34°C
$15,555 Vol.
Yes
35°C
$5,004 Vol.
No
36°C
$3,428 Vol.
No
37°C or higher
$4,243 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Halim Perdanakusuma Intl Airport Station in degrees Celsius on 21 Apr '26.
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.BMKG observations at Halim Perdanakusuma International Airport, the market's resolution source, confirm Jakarta's highest temperature reached 34°C on April 21, 2026, during midday peak solar insolation under partly cloudy skies with isolated light rain. This aligns with recent days' patterns, including April 20's 34°C high, driven by urban heat island effects, low humidity, and the onset of dry season suppressing convective cooling despite forecast models predicting caps around 30–32°C. April climatology averages 31°C highs (NOAA-aligned data), but 2026's persistent high-pressure ridge has elevated readings. With the day nearly complete and no late-afternoon heat burst observed, trader consensus at 100% implied probability for 34°C reflects locked-in observational data; only a rare measurement revision could challenge it.
This market will resolve to the temperature range that contains the highest temperature recorded at the Halim Perdanakusuma Intl Airport Station in degrees Celsius on 21 Apr '26.
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.
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: Apr 19, 2026, 12:18 AM ET
Volume
$53,529End Date
Apr 21, 2026Market Opened
Apr 19, 2026, 12:18 AM ETResolution Source
https://www.wunderground.com/history/daily/id/jakarta/WIHHResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Halim Perdanakusuma Intl Airport Station in degrees Celsius on 21 Apr '26.
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.BMKG observations at Halim Perdanakusuma International Airport, the market's resolution source, confirm Jakarta's highest temperature reached 34°C on April 21, 2026, during midday peak solar insolation under partly cloudy skies with isolated light rain. This aligns with recent days' patterns, including April 20's 34°C high, driven by urban heat island effects, low humidity, and the onset of dry season suppressing convective cooling despite forecast models predicting caps around 30–32°C. April climatology averages 31°C highs (NOAA-aligned data), but 2026's persistent high-pressure ridge has elevated readings. With the day nearly complete and no late-afternoon heat burst observed, trader consensus at 100% implied probability for 34°C reflects locked-in observational data; only a rare measurement revision could challenge it.
This market will resolve to the temperature range that contains the highest temperature recorded at the Halim Perdanakusuma Intl Airport Station in degrees Celsius on 21 Apr '26.
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.
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.
Volume
$53,529End Date
Apr 21, 2026Market Opened
Apr 19, 2026, 12:18 AM ETResolution Source
https://www.wunderground.com/history/daily/id/jakarta/WIHHResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
BMKG observations at Halim Perdanakusuma International Airport, the market's resolution source, confirm Jakarta's highest temperature reached 34°C on April 21, 2026, during midday peak solar insolation under partly cloudy skies with isolated light rain. This aligns with recent days' patterns, including April 20's 34°C high, driven by urban heat island effects, low humidity, and the onset of dry season suppressing convective cooling despite forecast models predicting caps around 30–32°C. April climatology averages 31°C highs (NOAA-aligned data), but 2026's persistent high-pressure ridge has elevated readings. With the day nearly complete and no late-afternoon heat burst observed, trader consensus at 100% implied probability for 34°C reflects locked-in observational data; only a rare measurement revision could challenge it.
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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