Dundalk

What is the climate like in Dundalk?

The best time to visit Dundalk is typically July, the year's most comfortable month (5.9/10). Dundalk is warmest in July, when daily highs average 66°F (19°C), and coolest in January, when lows fall to about 38°F (3°C). The wettest month is typically August and the driest is May; the year sees roughly 37 in (946 mm) of precipitation.

• Best time to visitJuly — the year's comfort peak (5.9/10)
• Warmest monthJuly — average high 66°F (19°C)
• Coolest monthJanuary — average low 38°F (3°C)
• Wettest monthAugust (3.7 in (93 mm))
• Driest monthMay (2.5 in (64 mm))
• Annual precipitation37 in (946 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromArmagh, 42 km away (1844-2026)