Stillorgan Weather in December

With daytime temperatures of 9°C (48°F) and nighttime lows of 4°C (39°F), December in Stillorgan brings low temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 83 mm (3.3 in) falls on average.

Rainfall in Stillorgan in December

Climate statistics over the past 30 years suggest around 17 days of rain, with 83 mm (3.3 in) average for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Stillorgan in December

December in Stillorgan brings low temperatures, with highs of 9°C (48°F) and nights around 4°C (39°F). December is in the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Stillorgan in December

The area sees fewer sunny days, with a projection of about 51 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.

Wind Speed in Stillorgan in December

Average wind conditions reach 6 m/s (12 knots) in December. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in December

At 11°C (52°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.

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