Climate almanac
Ko Samui
Surat Thani, Thailand · 9.54°, 99.94°
What is the weather like in Ko Samui in January?
In January, Ko Samui is typically 81°F (27°C) during the day and 79°F (26°C) at night. The month brings about 4.2 in (107 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low79°F (26°C)
- Precipitation4.2 in (107 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)