Siero Weather in December

Siero in December sees moderate temperatures, with highs around 13°C (55°F) and overnight lows of 5°C (41°F). Rainfall is fairly high at around 118 mm (4.6 in) on average, so pack waterproofs just in case.

Rainfall in Siero in December

Analyzing past climate data, one can expect approximately 17 days of rain, averaging 118 mm (4.6 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Siero in December

Daytime temperatures in Siero reach 13°C (55°F) in December, dropping to 5°C (41°F) at night. This month falls in the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Siero in December

The area enjoys a moderate level of sunlight, with around 105 hours. It's a good balance between sunny and cloudy days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Siero. Our weather planner can help you explore destinations with more pleasant weather conditions.