Recent numerical weather prediction ensembles from the ECMWF and GFS, updated within the past 48 hours, show Shanghai under persistent cloud cover and scattered showers tied to the mei-yu front, keeping the June 23 daytime maximum near 24–25 °C. This aligns with the market’s tight clustering around those outcomes, reflecting model consensus on limited solar heating and elevated boundary-layer moisture during the East Asian summer monsoon. Historical June climatology places average highs near 27–28 °C, but the current pattern favors suppressed temperatures by 2–3 °C through reduced insolation and evaporative cooling from rainfall. Traders weigh the narrow spread between 24 °C and 25 °C against potential model timing differences in any convective cells and the precise strength of onshore flow, with the next high-resolution runs and China Meteorological Administration guidance expected to refine the outcome before 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 Shanghai on June 23?
Highest temperature in Shanghai on June 23?
24°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$189,195 Vol.
$189,195 Vol.
Jun 23, 2026
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C
No
26°C
No
27°C
No
28°C
No
29°C or higher
No
24°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$189,195 Vol.
$189,195 Vol.
Jun 23, 2026
19°C or below
$371 Vol.
No
20°C
$27,301 Vol.
No
21°C
$3,336 Vol.
No
22°C
$8,297 Vol.
No
23°C
$82,055 Vol.
No
24°C
$32,728 Vol.
Yes
25°C
$15,880 Vol.
No
26°C
$8,461 Vol.
No
27°C
$4,764 Vol.
No
28°C
$2,558 Vol.
No
29°C or higher
$3,444 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 until the first data point for the following date has been published on the resolution source.
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.Recent numerical weather prediction ensembles from the ECMWF and GFS, updated within the past 48 hours, show Shanghai under persistent cloud cover and scattered showers tied to the mei-yu front, keeping the June 23 daytime maximum near 24–25 °C. This aligns with the market’s tight clustering around those outcomes, reflecting model consensus on limited solar heating and elevated boundary-layer moisture during the East Asian summer monsoon. Historical June climatology places average highs near 27–28 °C, but the current pattern favors suppressed temperatures by 2–3 °C through reduced insolation and evaporative cooling from rainfall. Traders weigh the narrow spread between 24 °C and 25 °C against potential model timing differences in any convective cells and the precise strength of onshore flow, with the next high-resolution runs and China Meteorological Administration guidance expected to refine the outcome before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 until the first data point for the following date has been published on the resolution source.
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.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 until the first data point for the following date has been published on the resolution source.
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: Jun 21, 2026, 12:06 AM ET
Volume
$189,195End Date
Jun 23, 2026Market Opened
Jun 21, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 until the first data point for the following date has been published on the resolution source.
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.Recent numerical weather prediction ensembles from the ECMWF and GFS, updated within the past 48 hours, show Shanghai under persistent cloud cover and scattered showers tied to the mei-yu front, keeping the June 23 daytime maximum near 24–25 °C. This aligns with the market’s tight clustering around those outcomes, reflecting model consensus on limited solar heating and elevated boundary-layer moisture during the East Asian summer monsoon. Historical June climatology places average highs near 27–28 °C, but the current pattern favors suppressed temperatures by 2–3 °C through reduced insolation and evaporative cooling from rainfall. Traders weigh the narrow spread between 24 °C and 25 °C against potential model timing differences in any convective cells and the precise strength of onshore flow, with the next high-resolution runs and China Meteorological Administration guidance expected to refine the outcome before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 until the first data point for the following date has been published on the resolution source.
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.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 until the first data point for the following date has been published on the resolution source.
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.
Volume
$189,195End Date
Jun 23, 2026Market Opened
Jun 21, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent numerical weather prediction ensembles from the ECMWF and GFS, updated within the past 48 hours, show Shanghai under persistent cloud cover and scattered showers tied to the mei-yu front, keeping the June 23 daytime maximum near 24–25 °C. This aligns with the market’s tight clustering around those outcomes, reflecting model consensus on limited solar heating and elevated boundary-layer moisture during the East Asian summer monsoon. Historical June climatology places average highs near 27–28 °C, but the current pattern favors suppressed temperatures by 2–3 °C through reduced insolation and evaporative cooling from rainfall. Traders weigh the narrow spread between 24 °C and 25 °C against potential model timing differences in any convective cells and the precise strength of onshore flow, with the next high-resolution runs and China Meteorological Administration guidance expected to refine the outcome before resolution.
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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