December · United Kingdom
Best time to visit Giant's Causeway in December Weather, crowds & prices
Weather in Giant's Causeway in December
Average temperature 6°C, 122 mm of rain, about 0 days with 6+ hours of sunshine and 91% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
3.2/10
Ranked #12 of 12 months
- Avg temp
- 6°C
- Rainfall
- 122 mm
- Humidity
- 91%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Giant's Causeway scores 3.2/10 for nature and wildlife travel - ranked #12 of 12. Expect around 6°C, 122 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Hexagonal basalt columns meeting Atlantic spray peak in May-September.
December in Giant's Causeway: expect compromises
Expect 6°C (44°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
122 mm of rain signals a properly wet month, with only almost no days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 3.2/10 on the same scale — 12th of 12 months, versus 8.8/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, June is materially better in Giant's Causeway — 5.6 points higher on the same scale.
Frequently asked
- What is the weather like in Giant's Causeway in December?
- In December, Giant's Causeway averages 6°C, 122 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 3.2/10.
- Is December a good time to visit Giant's Causeway?
- December earns a 3.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Giant's Causeway in December?
- Expect about 122 mm of rain in December. Average humidity is 91% and there are about 0 days with 6+ hours of sunshine.
Curated in Giant's Causeway
Tickets & experiences
Things to do in Giant's Causeway
Giant's Causeway, United Kingdom. Live activities and tours from GetYourGuide, matched to this destination.