Recent forecast models from sources like the ECMWF and GFS indicate Munich will experience clear to partly cloudy skies overnight on September 22, 2026, with light winds and dew points near 5–7°C, favoring strong radiative cooling under high pressure. This setup supports minimum temperatures around 7–8°C on average, though localized clear spells and calm conditions could drive readings to 5°C or lower in urban stations, aligning with trader emphasis on the 5°C and 4°C outcomes. The shift from warmer late-summer patterns earlier in the month, combined with northwest flow, has accelerated the seasonal decline below the 9.3°C climatological average low, though model consensus leaves room for slight upward revisions if cloud cover increases.