Harlech Weather in December

December in Harlech brings low temperatures, with highs of 9°C (48°F) and nights dropping to 4°C (39°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Harlech in December

This month brings the peak rainfall of the year, with heavy showers. Be sure to have a poncho ready to manage the downpours. Historically, December sees about 21 days of rain, with a monthly average of 169 mm (6.7 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Harlech in December

December in Harlech brings typical temperatures with highs around 9°C (48°F) and lows of 4°C (39°F). December is a notable month of the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Harlech in December

The month has fewer sunny days, with around 26 hours of sunshine.

December in Harlech can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.