Illzach

What is the climate like in Illzach?

The best time to visit Illzach is typically July – September, with trip comfort peaking in July (7.1/10). Illzach is warmest in July, when daily highs average 79°F (26°C), and coolest in January, when lows fall to about 32°F (0°C). The wettest month is typically January and the driest is September; the year sees roughly 39 in (1002 mm) of precipitation.

• Best time to visitJuly – September — comfort peaks in July (7.1/10)
• Warmest monthJuly — average high 79°F (26°C)
• Coolest monthJanuary — average low 32°F (0°C)
• Wettest monthJanuary (4.2 in (106 mm))
• Driest monthSeptember (2.7 in (68 mm))
• Annual precipitation39 in (1002 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromBasel-mulhouse, 21 km away (1947-2026)