Norrtälje

What is the climate like in Norrtälje?

The best time to visit Norrtälje is typically May – September, with trip comfort peaking in June (7.3/10). Norrtälje is warmest in July, when daily highs average 69°F (21°C), and coolest in January, when lows fall to about 27°F (-3°C). The wettest month is typically July and the driest is April; the year sees roughly 24 in (605 mm) of precipitation.

• Best time to visitMay – September — comfort peaks in June (7.3/10)
• Warmest monthJuly — average high 69°F (21°C)
• Coolest monthJanuary — average low 27°F (-3°C)
• Wettest monthJuly (2.8 in (71 mm))
• Driest monthApril (1.3 in (33 mm))
• Annual precipitation24 in (605 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromSvanberga_a, 9 km away (1995-2026)