Trader consensus clusters around 15-20°C for Tokyo's highest temperature on March 22, driven primarily by ensemble forecasts from the Japan Meteorological Agency and ECMWF models projecting mild highs near 16-17°C under a persistent high-pressure ridge allowing southerly winds. Recent model runs show slight divergence: ECMWF leans warmer toward 18°C with reduced cloud cover, while GFS implies cooler 15°C if a weak frontal boundary arrives earlier, introducing uncertainty in diurnal heating. Historical March 22 averages hover at 13-14°C, but urban heat island effects and above-normal sea surface temperatures this season nudge odds higher; key watch is afternoon sunshine penetration versus any marine layer, with 16°C edging out due to balanced trader weighting of these factors.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on March 22?
Highest temperature in Tokyo on March 22?
17°C 32%
18°C 32%
16°C 28%
15°C 18%
11°C or below
4%
12°C
4%
13°C
10%
14°C
11%
15°C
18%
16°C
28%
17°C
24%
18°C
17%
19°C
16%
20°C
16%
21°C or higher
7%
17°C 32%
18°C 32%
16°C 28%
15°C 18%
11°C or below
4%
12°C
4%
13°C
10%
14°C
11%
15°C
18%
16°C
28%
17°C
24%
18°C
17%
19°C
16%
20°C
16%
21°C or higher
7%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Tokyo Haneda Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Mar 18, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Trader consensus clusters around 15-20°C for Tokyo's highest temperature on March 22, driven primarily by ensemble forecasts from the Japan Meteorological Agency and ECMWF models projecting mild highs near 16-17°C under a persistent high-pressure ridge allowing southerly winds. Recent model runs show slight divergence: ECMWF leans warmer toward 18°C with reduced cloud cover, while GFS implies cooler 15°C if a weak frontal boundary arrives earlier, introducing uncertainty in diurnal heating. Historical March 22 averages hover at 13-14°C, but urban heat island effects and above-normal sea surface temperatures this season nudge odds higher; key watch is afternoon sunshine penetration versus any marine layer, with 16°C edging out due to balanced trader weighting of these factors.
Experimental AI-generated summary referencing Polymarket data · Updated
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