Roscommon

What is the climate like in Roscommon?

The best time to visit Roscommon is typically May, the year's most comfortable month (5.7/10). Roscommon is warmest in July, when daily highs average 65°F (18°C), and coolest in January, when lows fall to about 38°F (3°C). The wettest month is typically October and the driest is May; the year sees roughly 44 in (1125 mm) of precipitation.

• Best time to visitMay — the year's comfort peak (5.7/10)
• Warmest monthJuly — average high 65°F (18°C)
• Coolest monthJanuary — average low 38°F (3°C)
• Wettest monthOctober (4.5 in (115 mm))
• Driest monthMay (2.9 in (72 mm))
• Annual precipitation44 in (1125 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromConnaught, 52 km away (1929-2025)