Lammi

What is the climate like in Lammi?

The best time to visit Lammi is typically May – June, with trip comfort peaking in June (6.6/10). Lammi is warmest in July, when daily highs average 71°F (22°C), and coolest in January, when lows fall to about 18°F (-8°C). The wettest month is typically July and the driest is March; the year sees roughly 29 in (748 mm) of precipitation.

• Best time to visitMay – June — comfort peaks in June (6.6/10)
• Warmest monthJuly — average high 71°F (22°C)
• Coolest monthJanuary — average low 18°F (-8°C)
• Wettest monthJuly (3.5 in (90 mm))
• Driest monthMarch (1.6 in (41 mm))
• Annual precipitation29 in (748 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromHameenlinna Lammi Pappila, 4 km away (1963-2026)