The overwhelming trader consensus around a 12°C high in Amsterdam on May 16 stems from consistent output across major forecast models showing persistent cool northwesterly flow and a stable maritime air mass holding daytime maxima at that level. Recent surface observations near 10–11°C with only partial sunshine and light winds align with this trajectory, as seasonal climatology for mid-May places average highs closer to 16°C but current synoptic patterns suppress warming. Official guidance from European meteorological centers emphasizes minimal diurnal rise through the afternoon, leaving little room for deviation unless an unmodeled warm front develops. Any late-day verification shift would require rapid model consensus changes not currently indicated.