Dublin Weather in December 2026: what to expect (0.8/10)

The month in detail

What to expect in December

Winter in Dublin is cool (9.0°F during the day). Days are short (1.8h of sunshine) but the city reveals a different side. Expect rain on 45.0% of days — a light raincoat in the bag is recommended.

December ranks 12 out of 12 months in Dublin. Compared to November: −4°F daytime, −0.7h of sun per day.

This month's conditions

What it's like in December

UV index

0 · low

no protection needed

Feels like

dry air

5°

Sea

8°C

cold, for the brave

Daylight

7.3h of daylight

Air quality

good

AQI 26

Compare

Is December the right month?

The best month in Dublin is July (4.5/10), 3.7 pts higher than December.

See July →See all 12 months →

Context

Our verdict

Dublin has a very wet oceanic climate: it rains 1 day in 3 all year. June-August are my favorite months (7.2-7.3/10): 55-66°F, 45-48% rain, 17h days, festivals (Bloomsday on 16 June, Dublin Pride in June).

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

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Stay

Hotels & rentals · Dublin

Expedia →

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Activities

Tours, tickets, experiences

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Flights

Multi-airline comparator

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🎟️ Activities & tours · Dublin

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.

Country · Ireland

🗣️LanguageEnglish

💶CurrencyEuro (€)

🚗DrivingLeft-hand

🛡️Safety ⓘVery safe · 1/5

💰Cost of living ⓘExpensive · 4/5

🌡️ Climate

🌍Climate typeTemperate oceanic

📈Climate trend ⓘ+1.82°F/decade

🔥Hottest monthJuly · 66°F

❄️Coolest monthJanuary · 46°F

🌧️Rainiest month ⓘFebruary · 48%

🏖️ Beach trip

📅Peak seasonJuin → Sept

🏖️Swell (Sept–Mar) ⓘModérée

Explore

Other destinations in December

If December doesn't convince you for this destination, compare with others.

Similar climate

EdinburghScotland

YorkUnited Kingdom

CotswoldsUnited Kingdom

BathUnited Kingdom

AmsterdamNetherlands

Nearby

Wild Atlantic WayIreland216 km

Lake DistrictUnited Kingdom242 km

Isle of SkyeUnited Kingdom436 km

LondonUnited Kingdom463 km

Other top picks

🗺️ See all 754 destinations on the map

Location

Where is Dublin ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

Ireland

Temperate oceanic climate with a 4.5 → 0.8 gap between best and worst month. 10 years of ERA5 data to choose by project.

53.35°N · 6.26°W

Questions

Frequently asked questions

What is the best time to visit Dublin?

August is the best month with 66°F highs, 55°F lows, 5.0h of sunshine and 45.0% rainy days.

How many hours of sunshine does Dublin get in August?

Dublin averages 5.0 sunshine hours per day in August. It is the sunniest month with a climate score of 4.3/10.

What is the rainiest month in Dublin?

December is the most unfavourable month with December has the lowest climate score of the year and the lowest climate score of the year.

What are the temperatures at night in Dublin in August?

In August, overnight lows reach 55°F, while afternoon highs average 66°F.

Is Dublin good in winter?

In winter (December-February), Dublin scores 0.9/10 on average — Difficult period — prefer the peak season.. The best month overall remains August with a score of 4.3/10.

When should you avoid Dublin?

December is the most difficult month to visit Dublin, with December has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.

Can you swim in Dublin in December?

In December, the sea averages 47°F in Dublin: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.

Do you need sun protection in Dublin in December?

The average UV index reaches 0 in December in Dublin (low), with about 7.3h of daylight. No protection needed.