Saint Helier

What is the climate like in Saint Helier?

The best time to visit Saint Helier is typically June – August, with trip comfort peaking in July (7.3/10). Saint Helier is warmest in August, when daily highs average 66°F (19°C), and coolest in January, when lows fall to about 45°F (7°C). The wettest month is typically November and the driest is April; the year sees roughly 44 in (1118 mm) of precipitation.

• Best time to visitJune – August — comfort peaks in July (7.3/10)
• Warmest monthAugust — average high 66°F (19°C)
• Coolest monthJanuary — average low 45°F (7°C)
• Wettest monthNovember (5.9 in (150 mm))
• Driest monthApril (1.9 in (47 mm))
• Annual precipitation44 in (1118 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromJersey: Airport, 8 km away (1959-2026)