Lahti

What is the climate like in Lahti?

The best time to visit Lahti is typically May – June, with trip comfort peaking in June (6.7/10). Lahti is warmest in July, when daily highs average 70°F (21°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 30 in (749 mm) of precipitation.

• Best time to visitMay – June — comfort peaks in June (6.7/10)
• Warmest monthJuly — average high 70°F (21°C)
• Coolest monthJanuary — average low 18°F (-8°C)
• Wettest monthJuly (3.6 in (90 mm))
• Driest monthMarch (1.6 in (42 mm))
• Annual precipitation30 in (749 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromHeinola Asemantaus, 32 km away (1959-2026)