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Precipitation in London in September?
Foretrace AI research
Understand the odds. Examine the reasoning.
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
View a sample AI report No open markets in this event. Closed markets retain historical data.
24h volumeUnavailable
Total volume$40.6K
LiquidityUnavailable
Event end date · UTCDec 8, 2026
Price history
Market probabilityLoading price history…
Polymarket · UTC
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
Outcomes & resolution rules
7 marketsThese are market-implied probabilities, not AI forecasts. A displayed quote may differ from the price available for your order.
<30mmClosedMarket odds100%
Will London have less than 30mm of precipitation in September?
Yes100%Polymarket estimate
No0%Polymarket estimate
- Liquidity
- Unavailable
- Deadline · UTC
- Dec 8, 2026
- Yes bid / ask
- 99.5¢ / 100.0¢
- Trading fees
- Enabled · verify on Polymarket
Closed market · historical data
This market is closed. Its historical data remains available.
How research worksResolution rules
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.