**Current forecasts for Helsinki on October 13 center on a daytime maximum near 6–8 °C, with ensembles and official guidance from FMI, Yr.no, and ECMWF-aligned models showing a tight cluster around 7 °C.** Northeasterly flow under building high pressure is advecting cooler maritime air while increasing subsidence and partial clearing, which limits daytime warming. Key variables separating the 6 °C, 7 °C, and 8 °C strikes include the precise timing and extent of cloud breaks, minor shifts in 850 hPa temperatures, and boundary-layer mixing depth—small differences that can swing the peak by 1–2 °C. Historical October 13 highs average about 9.7 °C, so the current cool anomaly reflects the persistent northerly regime. Updated model runs and FMI briefings over the next 48 hours will tighten the range and likely drive the largest price adjustments in this closely matched market.