Official forecasts from Singapore’s Meteorological Service point to a daily maximum between 31°C and 33°C on May 18 under prevailing inter-monsoon conditions, with light variable winds and scattered afternoon thundery showers that typically moderate peak heating. May climatology shows average highs of 31–33°C driven by strong solar insolation near the equator, though persistent cloud cover or rain can suppress readings by 1–2°C while brief clear spells allow brief excursions to 34°C. Regional model consensus and recent NEA outlooks favor the narrow 32°C band as the most probable outcome, consistent with the market’s leading 40.5% implied probability and the secondary 24.5% and 21% shares on 33°C and 31°C. Updated model runs ahead of the morning observation window remain the primary near-term driver for any shifts.
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 18?
Highest temperature in Singapore on May 18?
32°C 40%
33°C 25%
31°C 20%
34°C or higher 11.2%
NEW
$17,295 Vol.
NEW
$17,295 Vol.
May 18, 2026
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
2%
30°C
6%
31°C
20%
32°C
40%
33°C
25%
34°C or higher
11%
32°C 40%
33°C 25%
31°C 20%
34°C or higher 11.2%
NEW
$17,295 Vol.
NEW
$17,295 Vol.
May 18, 2026
24°C or below
$1,778 Vol.
<1%
25°C
$534 Vol.
<1%
26°C
$646 Vol.
<1%
27°C
$1,089 Vol.
<1%
28°C
$2,307 Vol.
<1%
29°C
$1,981 Vol.
2%
30°C
$2,123 Vol.
6%
31°C
$1,279 Vol.
20%
32°C
$1,733 Vol.
40%
33°C
$2,333 Vol.
25%
34°C or higher
$1,518 Vol.
11%
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 18 May '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 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.Official forecasts from Singapore’s Meteorological Service point to a daily maximum between 31°C and 33°C on May 18 under prevailing inter-monsoon conditions, with light variable winds and scattered afternoon thundery showers that typically moderate peak heating. May climatology shows average highs of 31–33°C driven by strong solar insolation near the equator, though persistent cloud cover or rain can suppress readings by 1–2°C while brief clear spells allow brief excursions to 34°C. Regional model consensus and recent NEA outlooks favor the narrow 32°C band as the most probable outcome, consistent with the market’s leading 40.5% implied probability and the secondary 24.5% and 21% shares on 33°C and 31°C. Updated model runs ahead of the morning observation window remain the primary near-term driver for any shifts.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 18 May '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 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.
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 16, 2026, 12:04 AM ET
Volume
$17,295End Date
May 18, 2026Market Opened
May 16, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSThis market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 18 May '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 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.Official forecasts from Singapore’s Meteorological Service point to a daily maximum between 31°C and 33°C on May 18 under prevailing inter-monsoon conditions, with light variable winds and scattered afternoon thundery showers that typically moderate peak heating. May climatology shows average highs of 31–33°C driven by strong solar insolation near the equator, though persistent cloud cover or rain can suppress readings by 1–2°C while brief clear spells allow brief excursions to 34°C. Regional model consensus and recent NEA outlooks favor the narrow 32°C band as the most probable outcome, consistent with the market’s leading 40.5% implied probability and the secondary 24.5% and 21% shares on 33°C and 31°C. Updated model runs ahead of the morning observation window remain the primary near-term driver for any shifts.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 18 May '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 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.
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.
Volume
$17,295End Date
May 18, 2026Market Opened
May 16, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSOfficial forecasts from Singapore’s Meteorological Service point to a daily maximum between 31°C and 33°C on May 18 under prevailing inter-monsoon conditions, with light variable winds and scattered afternoon thundery showers that typically moderate peak heating. May climatology shows average highs of 31–33°C driven by strong solar insolation near the equator, though persistent cloud cover or rain can suppress readings by 1–2°C while brief clear spells allow brief excursions to 34°C. Regional model consensus and recent NEA outlooks favor the narrow 32°C band as the most probable outcome, consistent with the market’s leading 40.5% implied probability and the secondary 24.5% and 21% shares on 33°C and 31°C. Updated model runs ahead of the morning observation window remain the primary near-term driver for any shifts.
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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