Saint-Martin-Boulogne

What is the climate like in Saint-Martin-Boulogne?

The best time to visit Saint-Martin-Boulogne is typically June – August, with trip comfort peaking in July (7.2/10). Saint-Martin-Boulogne is warmest in August, when daily highs average 69°F (20°C), and coolest in January, when lows fall to about 40°F (4°C). The wettest month is typically November and the driest is April; the year sees roughly 39 in (989 mm) of precipitation.

• Best time to visitJune – August — comfort peaks in July (7.2/10)
• Warmest monthAugust — average high 69°F (20°C)
• Coolest monthJanuary — average low 40°F (4°C)
• Wettest monthNovember (5.1 in (130 mm))
• Driest monthApril (2.0 in (50 mm))
• Annual precipitation39 in (989 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromHayling Island, 45 km away (1959-2026)