**Official Japan Meteorological Agency forecasts peg Tokyo's August 13 high at 29°C under mostly cloudy skies with scattered showers and thunderstorms, which can cap peak readings through evaporative cooling and reduced solar heating.** AccuWeather and other models align closely around 28–29°C, reflecting typical late-summer conditions where the urban heat island elevates baseline temperatures but frequent precipitation and moderate northeasterly winds limit further rises. Historical August averages near 31°C provide context, yet the day's specific moisture and cloud cover introduce genuine uncertainty between the two leading outcomes. Traders price 28°C and 29°C nearly equally because resolution hinges on the precise official maximum—often measured at a central station—where even small shifts in storm timing or intensity could tip the result either way. Higher outcomes like 30°C remain possible only if skies clear earlier than expected, while lower readings would require heavier or more persistent rain.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Tokyo on August 13?
Highest temperature in Tokyo on August 13?
29°C 53%
28°C 33%
30°C 12%
31°C 2.1%
NEW
$52,896 Vol.
NEW
$52,896 Vol.
Aug 13, 2026
23°C or below
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
33%
29°C
53%
30°C
12%
31°C
2%
32°C
1%
33°C or higher
<1%
29°C 53%
28°C 33%
30°C 12%
31°C 2.1%
NEW
$52,896 Vol.
NEW
$52,896 Vol.
Aug 13, 2026
23°C or below
$632 Vol.
<1%
24°C
$1,830 Vol.
<1%
25°C
$2,764 Vol.
<1%
26°C
$6,422 Vol.
<1%
27°C
$12,916 Vol.
<1%
28°C
$6,064 Vol.
33%
29°C
$4,496 Vol.
53%
30°C
$3,728 Vol.
12%
31°C
$4,040 Vol.
2%
32°C
$3,638 Vol.
1%
33°C or higher
$6,367 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 13 Aug '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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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.**Official Japan Meteorological Agency forecasts peg Tokyo's August 13 high at 29°C under mostly cloudy skies with scattered showers and thunderstorms, which can cap peak readings through evaporative cooling and reduced solar heating.**
AccuWeather and other models align closely around 28–29°C, reflecting typical late-summer conditions where the urban heat island elevates baseline temperatures but frequent precipitation and moderate northeasterly winds limit further rises. Historical August averages near 31°C provide context, yet the day's specific moisture and cloud cover introduce genuine uncertainty between the two leading outcomes.
Traders price 28°C and 29°C nearly equally because resolution hinges on the precise official maximum—often measured at a central station—where even small shifts in storm timing or intensity could tip the result either way. Higher outcomes like 30°C remain possible only if skies clear earlier than expected, while lower readings would require heavier or more persistent rain.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 13 Aug '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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 13 Aug '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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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: Aug 11, 2026, 12:03 AM ET
Volume
$52,896End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 13 Aug '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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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.**Official Japan Meteorological Agency forecasts peg Tokyo's August 13 high at 29°C under mostly cloudy skies with scattered showers and thunderstorms, which can cap peak readings through evaporative cooling and reduced solar heating.**
AccuWeather and other models align closely around 28–29°C, reflecting typical late-summer conditions where the urban heat island elevates baseline temperatures but frequent precipitation and moderate northeasterly winds limit further rises. Historical August averages near 31°C provide context, yet the day's specific moisture and cloud cover introduce genuine uncertainty between the two leading outcomes.
Traders price 28°C and 29°C nearly equally because resolution hinges on the precise official maximum—often measured at a central station—where even small shifts in storm timing or intensity could tip the result either way. Higher outcomes like 30°C remain possible only if skies clear earlier than expected, while lower readings would require heavier or more persistent rain.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 13 Aug '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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 13 Aug '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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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
$52,896End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...**Official Japan Meteorological Agency forecasts peg Tokyo's August 13 high at 29°C under mostly cloudy skies with scattered showers and thunderstorms, which can cap peak readings through evaporative cooling and reduced solar heating.** AccuWeather and other models align closely around 28–29°C, reflecting typical late-summer conditions where the urban heat island elevates baseline temperatures but frequent precipitation and moderate northeasterly winds limit further rises. Historical August averages near 31°C provide context, yet the day's specific moisture and cloud cover introduce genuine uncertainty between the two leading outcomes. Traders price 28°C and 29°C nearly equally because resolution hinges on the precise official maximum—often measured at a central station—where even small shifts in storm timing or intensity could tip the result either way. Higher outcomes like 30°C remain possible only if skies clear earlier than expected, while lower readings would require heavier or more persistent rain.
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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