Stykkishólmur Weather in December
December in Stykkishólmur brings low temperatures, with daytime highs of 4°C (39°F) and nights around -1°C (30°F). Quite a bit of snow/rainfall is expected, around 120 mm (4.7 in), so pack an umbrella.
Rainfall in Stykkishólmur in December
You can expect snow/rain on around 18 days based on historical patterns, with 120 mm (4.7 in) average for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Stykkishólmur in December
Daytime temperatures in Stykkishólmur reach 4°C (39°F) in December, dropping to -1°C (30°F) at night. It stays very cold throughout much of the day, so warm winter clothing is essential. Nights are well below freezing at -1°C (30°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. Expect freezing temperatures this month, so ensure you have plenty of warm clothing. It's important to be prepared.
Sunshine in Stykkishólmur in December
This month sees fewer sunny days, with about 9 hours of sunshine, perfect for those who enjoy cooler temperatures.
Wind Speed in Stykkishólmur in December
December has wind speeds averaging 7 m/s (14 knots). You can expect generally windy conditions with strong breezes affecting daily routines on typical days. As an average, some days have moderate strong winds while others feature more intense gusts that make walking and movement challenging.
Average water temperature in December
At 6°C (43°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.December in Stykkishólmur 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Stykkishólmur's climate page.
Stykkishólmur Temperature in December
Min Temperature
-1°C (30°F)
Max Temperature
4°C (39°F)
Water Temperature
6°C (43°F)
Chance of Rain
61%
Precipitation
120 mm (4.7 in)
Rainy days
18 days
Humidity
80%
Windspeed
7 m/s (14 knots)
Sunshine
9 hours
Percentage Sunshine
7%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Stykkishólmur typically stay consistent throughout December, with daily highs averaging around 4°C (39°F). Nights are very cold, with lows typically ranging from -4°C (25°F) to -1°C (30°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Stykkishólmur in December
Browse day-by-day weather records for Stykkishólmur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Stykkishólmur historical weather extremes in December
Based on 29 years of weather observations in Stykkishólmur between 1996 and 2025, these are the recorded extremes.
- On December 13, 2001, temperatures climbed to 13°C (55°F), marking the warmest December day on record.
- The lowest daytime temperature in December was -8°C (18°F), recorded on December 23, 2004.
- The wettest December day on record brought 66 mm (2.6 in) of precipitation to Stykkishólmur (December 26, 2010).
Best Places in Iceland in December
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in December →
perfect weather
pleasant
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What to Wear in Stykkishólmur in December
We recommend to layer up for chilly conditions in Stykkishólmur 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. The water temperature sits at about 6°C (43°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Stykkishólmur in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Stykkishólmur's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Stykkishólmur climate overview or explore weather in Iceland.
