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Thinking of visiting Cong in January? Expect low temperatures reaching 9°C (48°F) during the day, dropping to 3°C (37°F) at night, and note that quite a bit of rainfall is likely.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Cong.
Pick a month to see the average temperature, rainfall and sunshine in Cong - and find the best time to visit.
50-year average (1976-2026)
Based on our historical records, temperatures in Cong typically stay consistent throughout January, with daily highs averaging around 9°C (48°F). Nights are cold, with lows around 3°C (37°F).
50-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Cong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in Cong.
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 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).
Dress warmly and in layers for your trip to Cong 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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Cong climate overview or explore weather in Ireland.
Where to go in January - average daytime high across popular destinations.
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