Climate almanac

Jämsänkoski

Central Finland, Finland · 61.92°, 25.17°

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What is the climate like in Jämsänkoski?

The best time to visit Jämsänkoski is typically June, the year's most comfortable month (6.7/10). Jämsänkoski is warmest in July, when daily highs average 71°F (22°C), and coolest in January, when lows fall to about 16°F (-9°C). The wettest month is typically August and the driest is March; the year sees roughly 31 in (776 mm) of precipitation.

  • Best time to visitJune — the year's comfort peak (6.7/10)
  • Warmest monthJuly — average high 71°F (22°C)
  • Coolest monthJanuary — average low 16°F (-9°C)
  • Wettest monthAugust (3.7 in (95 mm))
  • Driest monthMarch (1.6 in (41 mm))
  • Annual precipitation31 in (776 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromJamsa Halli Lentokentta, 21 km away (1964-2026)