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During December, Borgarnes experiences low daytime temperatures of 3°C (37°F) and cooler nights around -3°C (27°F). As part of the winter season, expect quite a bit of snow/rainfall. Around 134 mm (5.3 in) is typical.
December in Borgarnes has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Borgarnes - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Borgarnes typically stay consistent throughout December, with daily highs averaging around 3°C (37°F). Nights are very cold, with lows typically ranging from -3°C (27°F) to 0°C (32°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Borgarnes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Borgarnes spans 1976 to 2025, revealing these weather extremes.
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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Dress warmly and in layers for your trip to Borgarnes in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Borgarnes climate overview or explore weather in Iceland.
Where to go in December - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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