Aosta

What is the climate like in Aosta?

The best time to visit Aosta is typically July, the year's most comfortable month (6.0/10). Aosta is warmest in July, when daily highs average 64°F (18°C), and coolest in January, when lows fall to about 11°F (-12°C). The wettest month is typically May and the driest is September; the year sees roughly 51 in (1300 mm) of precipitation.

• Best time to visitJuly — the year's comfort peak (6.0/10)
• Warmest monthJuly — average high 64°F (18°C)
• Coolest monthJanuary — average low 11°F (-12°C)
• Wettest monthMay (5.3 in (135 mm))
• Driest monthSeptember (3.1 in (80 mm))
• Annual precipitation51 in (1300 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCol Du Grand St-bernard, 18 km away (1864-2026)