Current meteorological forecasts from Singapore’s official monitoring agencies point to a daily maximum of 33°C on May 20 under typical inter-monsoon conditions, with light variable winds and afternoon thundery showers expected to limit further heating. These projections draw on historical May climatology showing average highs near 32°C, combined with recent station observations and model consensus that favor modest intensification only if cloud cover decreases markedly. The near-certain market-implied outcome reflects this stable pattern, while the low probabilities attached to 34°C or higher acknowledge the realistic but limited scope for localized heat spikes if steering winds weaken or insolation increases. Updated National Environment Agency guidance and afternoon model runs will provide the final data for 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 Singapore on May 20?
33°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$33,791 Vol.
$33,791 Vol.
26°C or below
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
Yes
34°C
No
35°C
No
36°C or higher
No
33°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$33,791 Vol.
$33,791 Vol.
26°C or below
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
Yes
34°C
No
35°C
No
36°C or higher
No
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 Singapore Changi Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
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 18, 2026, 12:29 AM ET
Resolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 Singapore Changi Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
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/sg/singapore/WSSSResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Current meteorological forecasts from Singapore’s official monitoring agencies point to a daily maximum of 33°C on May 20 under typical inter-monsoon conditions, with light variable winds and afternoon thundery showers expected to limit further heating. These projections draw on historical May climatology showing average highs near 32°C, combined with recent station observations and model consensus that favor modest intensification only if cloud cover decreases markedly. The near-certain market-implied outcome reflects this stable pattern, while the low probabilities attached to 34°C or higher acknowledge the realistic but limited scope for localized heat spikes if steering winds weaken or insolation increases. Updated National Environment Agency guidance and afternoon model runs will provide the final data for resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions