Climate almanac
Half Moon Bay
Cayman Islands · 19.30°, -81.15°
What is the weather like in Half Moon Bay in December?
In December, Half Moon Bay is typically 81°F (27°C) during the day and 79°F (26°C) at night. The month brings about 1.9 in (49 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low79°F (26°C)
- Precipitation1.9 in (49 mm)
- Clear or mostly clear days18
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)