Caernarfon

What is the weather like in Caernarfon in January?

In January, Caernarfon is typically 46°F (8°C) during the day and 39°F (4°C) at night. The month brings about 4.0 in (102 mm) of precipitation in total. Snowfall averages about 1.1 in (28 mm) over the month.

• Average high46°F (8°C)
• Average low39°F (4°C)
• Precipitation4.0 in (102 mm)
• Clear or mostly clear days3
• Snowfall1.1 in (28 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)