Saint-Jean-de-Monts

What is the climate like in Saint-Jean-de-Monts?

The best time to visit Saint-Jean-de-Monts is typically April – September, with trip comfort peaking in July (8.0/10). Saint-Jean-de-Monts is warmest in August, when daily highs average 74°F (23°C), and coolest in January, when lows fall to about 42°F (6°C). The wettest month is typically November and the driest is July; the year sees roughly 30 in (765 mm) of precipitation.

• Best time to visitApril – September — comfort peaks in July (8.0/10)
• Warmest monthAugust — average high 74°F (23°C)
• Coolest monthJanuary — average low 42°F (6°C)
• Wettest monthNovember (3.7 in (94 mm))
• Driest monthJuly (1.3 in (34 mm))
• Annual precipitation30 in (765 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromNantes-bouguenais, 52 km away (1945-2026)