Harjavalta

What is the climate like in Harjavalta?

The best time to visit Harjavalta is typically May – June, with trip comfort peaking in June (6.9/10). Harjavalta is warmest in July, when daily highs average 71°F (22°C), and coolest in January, when lows fall to about 21°F (-6°C). The wettest month is typically August and the driest is March; the year sees roughly 29 in (743 mm) of precipitation.

• Best time to visitMay – June — comfort peaks in June (6.9/10)
• Warmest monthJuly — average high 71°F (22°C)
• Coolest monthJanuary — average low 21°F (-6°C)
• Wettest monthAugust (4.2 in (107 mm))
• Driest monthMarch (1.6 in (40 mm))
• Annual precipitation29 in (743 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromKokemaki Tulkkila, 14 km away (2010-2026)