Persistent southwest monsoon activity, reinforced by a nearby trough of Tropical Depression Krovanh, sustains cloudy skies and scattered to heavy rains across Metro Manila on September 9, limiting nocturnal radiative cooling and anchoring overnight lows near 24–25 °C according to PAGASA guidance and ensemble forecasts. High humidity (often exceeding 90 %) and urban heat-island effects from the densely built environment further moderate temperature drops, while light southwesterly winds reduce advection of cooler air. Historical September climatology places typical minima around 25 °C, but enhanced cloud cover this season tilts conditions slightly cooler. Traders weigh these persistent moisture-laden patterns against any late-day clearing that could allow a brief dip toward 23 °C before sunrise measurements conclude.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Manila on September 9?
23°C 43%
24°C 27%
20°C or below 5%
22°C 4%
20°C or below
5%
21°C
1%
22°C
4%
23°C
43%
24°C
27%
25°C
46%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
23°C 43%
24°C 27%
20°C or below 5%
22°C 4%
20°C or below
5%
21°C
1%
22°C
4%
23°C
43%
24°C
27%
25°C
46%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
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=rpll
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 7, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rpllResolver
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=rpll
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=rpllResolver
0x69c47De9D...Persistent southwest monsoon activity, reinforced by a nearby trough of Tropical Depression Krovanh, sustains cloudy skies and scattered to heavy rains across Metro Manila on September 9, limiting nocturnal radiative cooling and anchoring overnight lows near 24–25 °C according to PAGASA guidance and ensemble forecasts. High humidity (often exceeding 90 %) and urban heat-island effects from the densely built environment further moderate temperature drops, while light southwesterly winds reduce advection of cooler air. Historical September climatology places typical minima around 25 °C, but enhanced cloud cover this season tilts conditions slightly cooler. Traders weigh these persistent moisture-laden patterns against any late-day clearing that could allow a brief dip toward 23 °C before sunrise measurements conclude.
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