Saint-Omer

What is the climate like in Saint-Omer?

The best time to visit Saint-Omer is typically June – August, with trip comfort peaking in July (7.3/10). Saint-Omer is warmest in August, when daily highs average 73°F (23°C), and coolest in January, when lows fall to about 36°F (2°C). The wettest month is typically January and the driest is April; the year sees roughly 32 in (814 mm) of precipitation.

• Best time to visitJune – August — comfort peaks in July (7.3/10)
• Warmest monthAugust — average high 73°F (23°C)
• Coolest monthJanuary — average low 36°F (2°C)
• Wettest monthJanuary (3.1 in (80 mm))
• Driest monthApril (2.1 in (54 mm))
• Annual precipitation32 in (814 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromLille-lesquin, 62 km away (1944-2026)