Recent meteorological observations and forecast model consensus from agencies tracking the region indicate a high near 26°C for Paris on September 13, driven by partly cloudy conditions, light westerly flow, and moderate solar heating under a stable high-pressure pattern. This aligns with late-summer synoptic setups where daytime maxima typically reach the mid-20s Celsius before seasonal cooling accelerates. Historical September averages hover around 22°C, but recent warm anomalies have supported slightly elevated readings without the extreme advection or clear skies needed for 28°C-plus outcomes. Traders appear to weigh these factors against minor model spread on cloud cover and wind, with resolution hinging on official maximum observations by day's end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Paris on September 13?
26°C 50%
27°C 24%
25°C 17%
28°C 8%
$28,198 Vol.
$28,198 Vol.
22°C or below
<1%
23°C
1%
24°C
6%
25°C
17%
26°C
50%
27°C
24%
28°C
8%
29°C
2%
30°C
<1%
31°C
<1%
32°C or higher
<1%
26°C 50%
27°C 24%
25°C 17%
28°C 8%
$28,198 Vol.
$28,198 Vol.
22°C or below
<1%
23°C
1%
24°C
6%
25°C
17%
26°C
50%
27°C
24%
28°C
8%
29°C
2%
30°C
<1%
31°C
<1%
32°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=lfpb
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 11, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=lfpbResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=lfpb
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=lfpbResolver
0x69c47De9D...Recent meteorological observations and forecast model consensus from agencies tracking the region indicate a high near 26°C for Paris on September 13, driven by partly cloudy conditions, light westerly flow, and moderate solar heating under a stable high-pressure pattern. This aligns with late-summer synoptic setups where daytime maxima typically reach the mid-20s Celsius before seasonal cooling accelerates. Historical September averages hover around 22°C, but recent warm anomalies have supported slightly elevated readings without the extreme advection or clear skies needed for 28°C-plus outcomes. Traders appear to weigh these factors against minor model spread on cloud cover and wind, with resolution hinging on official maximum observations by day's end.
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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Frequently Asked Questions