Latest Japan Meteorological Agency forecasts indicate a minimum temperature of 23°C for Tokyo on August 13, driven by cloudy conditions and scattered showers expected to moderate overnight cooling following a 22°C low on August 12. Ensemble model spreads and variable precipitation probabilities introduce uncertainty between 22–24°C outcomes, as increased cloud cover and humidity reduce radiative cooling compared to clearer nights. This aligns with climatological August averages near 23.7°C while highlighting how frontal activity and wind patterns can shift the exact low by 1–2°C. Traders closely track updated model runs and JMA briefings ahead of the August 13 observation window.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Tokyo on August 13?
24°C 40%
23°C 36%
22°C 19%
20°C 11%
18°C or below
<1%
19°C
1%
20°C
11%
21°C
9%
22°C
19%
23°C
36%
24°C
40%
25°C
9%
26°C
5%
27°C
5%
28°C or higher
<1%
24°C 40%
23°C 36%
22°C 19%
20°C 11%
18°C or below
<1%
19°C
1%
20°C
11%
21°C
9%
22°C
19%
23°C
36%
24°C
40%
25°C
9%
26°C
5%
27°C
5%
28°C or higher
<1%
This market will resolve to the temperature range that contains the lowest 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 lowest 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, 12:30 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest 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 lowest 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.
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Latest Japan Meteorological Agency forecasts indicate a minimum temperature of 23°C for Tokyo on August 13, driven by cloudy conditions and scattered showers expected to moderate overnight cooling following a 22°C low on August 12. Ensemble model spreads and variable precipitation probabilities introduce uncertainty between 22–24°C outcomes, as increased cloud cover and humidity reduce radiative cooling compared to clearer nights. This aligns with climatological August averages near 23.7°C while highlighting how frontal activity and wind patterns can shift the exact low by 1–2°C. Traders closely track updated model runs and JMA briefings ahead of the August 13 observation window.
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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