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Derry Weather in January
Derry in January averages 9°C (48°F) during the day and 3°C (37°F) at night. This is part of the winter season, and quite a bit of rainfall is expected this month.
Rainfall in Derry in January
You can expect rain on around 23 days based on historical patterns, with 97 mm (3.8 in) average for the month. 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 Derry in January
Daytime highs in Derry in January reach 9°C (48°F), with nights around 3°C (37°F). January marks the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. It's generally the coldest month of the year, making it essential to pack warm layers and winter accessories.
Sunshine in Derry in January
This month sees fewer sunny days, with about 50 hours of sunshine, perfect for those who enjoy cooler temperatures.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, July, August, September and October typically offer the best weather for Derry.
Derry Temperature in January
Min Temperature
3°C (37°F)
Max Temperature
9°C (48°F)
Chance of Rain
77%
Precipitation
97 mm (3.8 in)
Rainy days
23 days
Sunshine
50 hours
Percentage Sunshine
Derry Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Derry - and find the best time to visit.
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Derry typically stay consistent throughout January, with daily highs averaging around 9°C (48°F). Nights are cold, with lows around 3°C (37°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather records for Derry in January
Browse day-by-day weather records for Derry spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Derry historical weather extremes in January
Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in Derry.
- On January 1, 2022, temperatures climbed to 14°C (57°F), marking the warmest January day on record.
- The lowest daytime temperature in January was -2°C (28°F), recorded on January 8, 2010.
- Nighttime temperatures dropped to -8°C (18°F) on January 8, 2010, marking the coldest January night on record.
- The wettest day in January Derry was on January 21, 2008 with 29 mm (1.1 in) of precipitation.
Best Places in Ireland in January
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in January →
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 Derry in January
Dress warmly and in layers for your trip to Derry in January. 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. With limited sunshine expected, sunglasses aren't a priority for packing.
What To Do in Derry in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling4/10 -
Walking4/10 -
Camping4/10 -
Outdoor sports4/10
Derry 3-Day Forecast
More climate data for Derry
See the full Derry climate overview or explore weather in Ireland.
Popular in January
Where to go in January - average daytime high across popular destinations.
Doolin
10°C (50°F) Cork10°C (50°F) Westport9°C (48°F) Kilkenny
9°C (48°F) Kenmare9°C (48°F) Killarney9°C (48°F) Galway10°C (50°F) Dublin9°C (48°F) Bucket list
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