Cornwall

What is the climate like in Cornwall?

The best time to visit Cornwall is typically July – August, with trip comfort peaking in August (6.8/10). Cornwall is warmest in July, when daily highs average 75°F (24°C), and coolest in February, when lows fall to about 16°F (-9°C). The wettest month is typically November and the driest is May; the year sees roughly 43 in (1094 mm) of precipitation.

• Best time to visitJuly – August — comfort peaks in August (6.8/10)
• Warmest monthJuly — average high 75°F (24°C)
• Coolest monthFebruary — average low 16°F (-9°C)
• Wettest monthNovember (4.6 in (117 mm))
• Driest monthMay (2.9 in (73 mm))
• Annual precipitation43 in (1094 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCharlottetown A, 9 km away (1943-2025)