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Longford Weather in December
December in Longford averages 9°C (48°F) during the day and 3°C (37°F) at night. Quite a bit of rainfall is typical this month, with around 95 mm (3.7 in) on average. An umbrella is a good idea.
Rainfall in Longford in December
Historically, December sees about 20 days of rain, with a monthly average of 95 mm (3.7 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Longford in December
Temperatures in Longford in December top out at 9°C (48°F) and drop to 3°C (37°F) overnight. Experience the winter season in December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Longford.
Longford Temperature in December
Min Temperature
3°C (37°F)
Max Temperature
9°C (48°F)
Chance of Rain
67%
Precipitation
95 mm (3.7 in)
Rainy days
20 days
Longford Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Longford - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Longford typically stay consistent throughout December, with daily highs averaging around 9°C (48°F). Nights are cold, with lows around 3°C (37°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Longford in December
Browse day-by-day weather records for Longford spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Longford historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Longford.
- On December 9, 2025, temperatures climbed to 14°C (57°F), marking the warmest December day on record.
- Longford registered its coldest December night on December 25, 2010, with temperatures dropping to -13°C (9°F).
- The wettest day in December Longford was on December 5, 2015 with 45 mm (1.8 in) of precipitation.
Best Places in Ireland in December
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in December →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Longford in December
Dress warmly and in layers for your trip to Longford 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.
What To Do in Longford in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling4/10 -
Walking4/10 -
Barbeque1/10 -
Camping4/10 -
Outdoor sports4/10
Longford 3-Day Forecast
More climate data for Longford
See the full Longford climate overview or explore weather in Ireland.
Popular in December
Where to go in December - average daytime high across popular destinations.
Doolin
11°C (52°F) Cork11°C (52°F) Westport9°C (48°F) Kilkenny
9°C (48°F) Kenmare10°C (50°F) Killarney10°C (50°F) Galway10°C (50°F) Dublin10°C (50°F) Bucket list
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