About this Market

Recent ensemble forecasts from Météo-France and ECMWF place Paris’s July 21 maximum near 26°C under partly sunny conditions following the early-July heatwave. Small differences in afternoon cloud timing, boundary-layer mixing, and weak southerly flow create a tight distribution across the 25–27°C range, explaining the closely matched market-implied odds. Historical July maxima average 24–25°C, so current guidance represents a modest positive anomaly with limited upside risk from stronger subsidence or clearer skies. Updated high-resolution runs and the next 12z cycle will refine the exact peak before resolution.