Porrentruy

What is the climate like in Porrentruy?

The best time to visit Porrentruy is typically July – August, with trip comfort peaking in July (6.5/10). Porrentruy is warmest in July, when daily highs average 77°F (25°C), and coolest in January, when lows fall to about 30°F (-1°C). The wettest month is typically May and the driest is February; the year sees roughly 53 in (1350 mm) of precipitation.

• Best time to visitJuly – August — comfort peaks in July (6.5/10)
• Warmest monthJuly — average high 77°F (25°C)
• Coolest monthJanuary — average low 30°F (-1°C)
• Wettest monthMay (5.4 in (138 mm))
• Driest monthFebruary (3.6 in (91 mm))
• Annual precipitation53 in (1350 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromBasel Binningen, 40 km away (1901-2026)