Dublin Weather in December
Ireland · Oceanic climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
December in Dublin sees average temperatures ranging from a low of 5.0°C (41.0°F) to a high of 9.1°C (48.4°F), with a mean of 7.1°C (44.8°F). Compared to the annual average of 11.0°C (51.8°F), this month is 3.9°C cooler than the yearly norm. Precipitation averages 87.8mm, making it approximately 9.0mm wetter than the monthly average of 79.0mm. The city receives an average of 3.5 hours of sunshine per day during December, with relative humidity averaging 83.7%. Wind speeds reach an average maximum of 28.2 km/h. Snowfall averages 0.7cm during December, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Dublin, with wetter-than-average conditions compared to the rest of the year.
Dublin's weather is a choose-your-own-adventure where every chapter includes rain. I packed a 'waterproof' jacket once — it wasn't. Bring serious rain gear: Gore-Tex or equivalent, year-round. The good news: rain rarely lasts long. My favorite window is May-June: 15°C, 7 hours of sun, and the pubs still have that winter coziness. August can be oddly humid. Skip January — 5°C, 70mm of rain, 8 hours of daylight if you're lucky. October has a melancholic charm but bring layers. Always pack for four seasons in one day, genuinely.
December vs Adjacent Months
| Metric | November | December | January |
|---|---|---|---|
| Mean Temp | 9.1°C (48.4°F) | 7.1°C (44.8°F) | 6.1°C (43.0°F) |
| Rainfall | 68.4mm | 87.8mm | 61.6mm |
| Sunshine | 4.4 hrs | 3.5 hrs | 4.1 hrs |
| Humidity | 83.3% | 83.7% | 82.8% |
| Wind | 26.3 km/h | 28.2 km/h | 27.0 km/h |
| Rainy Days | 17.6 | 18.8 | 17.2 |
| Snowfall | 0.0 cm | 0.7 cm | 0.4 cm |
Seasonal Context
December falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Dublin in December, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Dublin in December?
The average temperature in Dublin during December ranges from 5.0°C (41.0°F) to 9.1°C (48.4°F), with a mean of 7.1°C (44.8°F).
How much does it rain in Dublin in December?
Dublin receives an average of 87.8mm of precipitation in December, spread across approximately 18.8 rainy days.
What should I pack for Dublin in December?
Based on December weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is December a good time to visit Dublin?
December is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Dublin
Cities with Similar December Climate (Oceanic)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 53.35°, -6.26°. Timezone: Europe/Dublin. Last updated: 2026-07-30.