Climate almanac
Bay Saint Louis
Mississippi, United States · 30.31°, -89.33°
What is the weather like in Bay Saint Louis in December?
In December, Bay Saint Louis is typically 61°F (16°C) during the day and 54°F (12°C) at night. The month brings about 5.0 in (128 mm) of precipitation in total.
- Average high61°F (16°C)
- Average low54°F (12°C)
- Precipitation5.0 in (128 mm)
- Clear or mostly clear days10
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)