Climate almanac
Portstewart
Northern Ireland, United Kingdom · 55.18°, -6.71°
What is the weather like in Portstewart in January?
In January, Portstewart is typically 47°F (8°C) during the day and 43°F (6°C) at night. The month brings about 5.2 in (131 mm) of precipitation in total. Snowfall averages about 0.4 in (11 mm) over the month.
- Average high47°F (8°C)
- Average low43°F (6°C)
- Precipitation5.2 in (131 mm)
- Clear or mostly clear days1
- Snowfall0.4 in (11 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)