Mumbai weather will see clear skies on 21 December, with temperatures ranging from 18°C to 32°C, as per IMD. High tides are at 3:47 AM (4.06m) and 3:55 PM (3.07m), while low tides are at 10:31 AM (1.65m) and 9:46 PM (1.52m). The festive week ahead brings clear, foggy, and cloudy skies.