Nantucket

What is the climate like in Nantucket?

The best time to visit Nantucket is typically August, the year's most comfortable month (6.6/10). Nantucket is warmest in August, when daily highs average 70°F (21°C), and coolest in February, when lows fall to about 34°F (1°C). The wettest month is typically October and the driest is June; the year sees roughly 50 in (1277 mm) of precipitation.

• Best time to visitAugust — the year's comfort peak (6.6/10)
• Warmest monthAugust — average high 70°F (21°C)
• Coolest monthFebruary — average low 34°F (1°C)
• Wettest monthOctober (6.0 in (153 mm))
• Driest monthJune (2.7 in (69 mm))
• Annual precipitation50 in (1277 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromNantucket Mem AP, 5 km away (1948-2026)