Latest numerical weather prediction models from the European Centre for Medium-Range Weather Forecasts indicate a cool maritime air mass dominating central Europe, keeping Munich’s daytime maximum firmly at 13°C. This consensus arises from verified surface observations and ensemble runs showing minimal diurnal warming under persistent cloud cover and northerly flow, consistent with May climatological baselines around 18°C but suppressed by a 5–6°C negative anomaly. Traders have converged on this outcome because official Deutscher Wetterdienst guidance and real-time station data align without meaningful spread. Only an unexpected late-afternoon clearance or model bias exceeding 2°C could shift resolution above 13°C, scenarios assigned low probability given current observational agreement.