Updated 4 Aug 2026 · recomputed nightly
Visiting Dublin in December 2026?
December sits between the seasons in Dublin: cool and wet, around 9°C / 48°F with rain on about 15 days, Lively every day.
In short, a solid middle-ground pick.
Among the 12 months we forecast for Dublin, December ranks 10th for crowd pressure. Its heaviest day is Fri 25 Dec, busier than 55% of the year; its lightest is Tue 1 Dec at 43%.
Preparing pays off in a month like this: timed-entry tickets and pre-booked tours turn the queue time into sightseeing time. see the options →
How busy is Dublin in December?
It's quiet right through December — no crowded stretch to plan around.
The month barely moves — every day lands between 43% and 55% of the year. Daylight runs about 7 hours.
The calmest days include the 1st, 2nd and 3rd — 18 days share that level, so there is room to choose.
December weather in Dublin
Cold — around 9°C / 48°F, so pack a proper coat, with rain on about 15 days, so keep a layer handy. Daylight is short, about 7 hours, so plan the big sights for the middle of the day.
- Dublin gets rain on about 15 days in December, so the odds of being caught out are real. What earns its bag space is a shell that packs to nothing, dries fast and has a hood that survives wind; a heavy waterproof is overkill and an umbrella is one more thing to carry through crowds. Browse on Amazon ↗
- Around 9°C / 48°F, and the cold in Dublin is the damp kind that gets through padding. Thin layers you can peel off indoors work better than one thick coat — a merino base layer carries the load without the bulk. Browse on Amazon ↗
As an Amazon Associate, this site earns from qualifying purchases — we link categories, never specific products we haven't tested.
Is December worth it in Dublin?
The weather's the catch, but you dodge the worst of the crowds.
Worth booking the marquee sights ahead for the busy days, but you can keep the rest of the trip flexible.
Keep planning
Built on: Ireland's public holidays · school vacations across France and Germany · the season pattern from official overnight stays · five years of weather records (2019–2023) · operator-confirmed events · the published cruise schedule
Every figure is recomputed nightly from real cruise schedules, public and school holidays, and long-run climate normals. Gaps are shown, not filled.
