Châteaulin

What is the climate like in Châteaulin?

The best time to visit Châteaulin is typically July – August, with trip comfort peaking in July (7.3/10). Châteaulin is warmest in July, when daily highs average 71°F (22°C), and coolest in January, when lows fall to about 39°F (4°C). The wettest month is typically December and the driest is July; the year sees roughly 39 in (987 mm) of precipitation.

• Best time to visitJuly – August — comfort peaks in July (7.3/10)
• Warmest monthJuly — average high 71°F (22°C)
• Coolest monthJanuary — average low 39°F (4°C)
• Wettest monthDecember (4.7 in (120 mm))
• Driest monthJuly (2.0 in (50 mm))
• Annual precipitation39 in (987 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromBrest-guipavas, 36 km away (1945-2026)