**Forecast models and official guidance from METMalaysia point to a minimum near 24–26°C overnight into September 19 in Kuala Lumpur, reflecting typical equatorial conditions with limited diurnal cooling.** Persistent haze, high humidity (often 85–95% at night), light variable winds, and extensive cloud cover reduce radiative heat loss, keeping overnight lows from dropping sharply below recent baselines. Multiple ensemble runs and local observations show the lowest readings clustering around dawn, with official district forecasts listing a 24°C minimum and scattered sources indicating 24–25°C. Market-implied odds favor 25–27°C because traders weigh the narrow historical range for mid-September (climatological lows near 24–25°C) against model spread and the chance that localized showers or slightly clearer skies could nudge the exact recorded low up or down by 1°C. Resolution will hinge on the official Kuala Lumpur station observation for the calendar day’s minimum, with little time left for major forecast shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Kuala Lumpur on September 19?
20°C or below 44%
30°C or higher 44%
26°C 40%
27°C 40%
20°C or below
44%
21°C
8%
22°C
33%
23°C
33%
24°C
18%
25°C
29%
26°C
34%
27°C
28%
28°C
4%
29°C
2%
30°C or higher
44%
20°C or below 44%
30°C or higher 44%
26°C 40%
27°C 40%
20°C or below
44%
21°C
8%
22°C
33%
23°C
33%
24°C
18%
25°C
29%
26°C
34%
27°C
28%
28°C
4%
29°C
2%
30°C or higher
44%
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=wmkk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 17, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wmkkResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=wmkk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wmkkResolver
0x69c47De9D...**Forecast models and official guidance from METMalaysia point to a minimum near 24–26°C overnight into September 19 in Kuala Lumpur, reflecting typical equatorial conditions with limited diurnal cooling.** Persistent haze, high humidity (often 85–95% at night), light variable winds, and extensive cloud cover reduce radiative heat loss, keeping overnight lows from dropping sharply below recent baselines. Multiple ensemble runs and local observations show the lowest readings clustering around dawn, with official district forecasts listing a 24°C minimum and scattered sources indicating 24–25°C. Market-implied odds favor 25–27°C because traders weigh the narrow historical range for mid-September (climatological lows near 24–25°C) against model spread and the chance that localized showers or slightly clearer skies could nudge the exact recorded low up or down by 1°C. Resolution will hinge on the official Kuala Lumpur station observation for the calendar day’s minimum, with little time left for major forecast 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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