Open Science & Tech Polymarket

Precipitation in London in September?

Top outcomes

50-60mm 25%
80mm+ 24%
30-40mm 24%
60-70mm 24%

This market will resolve according to the total precipitation in mm at Heathrow (London Airport) in September, 2026, according to the Met Office. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. The resolution source for this market will be the Met Office, specifically the figure for September 2026 under "rain mm" at the https://www.metoffice.gov.uk/pub/data/weather/uk/climate/stationdata/heathrowdata.txt link once the Provisional figure for the whole month of September 2026 is released. If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen. The resolution source for this market measures precipitation to 1 decimal place (e.g., 1.5), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after Provisional data is released for this market's timeframe will not be considered for this market's resolution.

$648 Vol. Closes Sep 30, 2026

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$648 Vol.

All outcomes

Pick Yes or No on any outcome, then explain your pick below. Reputation-only — no money or trading.

$648 Vol.

50-60mm

25% market probability

25%

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0 / 2,000

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80mm+

24% market probability

24%

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0 / 2,000

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30-40mm

24% market probability

24%

Explain your Yes on 30-40mm Explain your No on 30-40mm (optional)

0 / 2,000

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60-70mm

24% market probability

24%

Explain your Yes on 60-70mm Explain your No on 60-70mm (optional)

0 / 2,000

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70-80mm

21% market probability

21%

Explain your Yes on 70-80mm Explain your No on 70-80mm (optional)

0 / 2,000

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<30mm

20% market probability

20%

Explain your Yes on <30mm Explain your No on <30mm (optional)

0 / 2,000

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40-50mm

18% market probability

18%

Explain your Yes on 40-50mm Explain your No on 40-50mm (optional)

0 / 2,000

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Public forecast history

All forecasts on this market — scored on Reputation when resolved. Earn Popularity when others like your forecast or comments.

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