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.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Stillorgan's climate page.

Stillorgan Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 9°C (48°F)  

Water Temperature 11°C (52°F) *  

Chance of Rain 58%  

Precipitation 83 mm (3.3 in)  

Rainy days 17 days  

Humidity 83% *  

Windspeed 6 m/s (12 knots) *  

Sunshine 51 hours *  

Percentage Sunshine 23% *  

* Data from: Dublin, Ireland (16 KM, 10 Miles).

What to Wear in Stillorgan in December

We recommend to layer up for chilly conditions in Stillorgan in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 11°C (52°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Stillorgan in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Stillorgan's climate page.

More climate data for Stillorgan

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Stillorgan climate overview or explore weather in Ireland.