Mattapoisett

What is the climate like in Mattapoisett?

The best time to visit Mattapoisett is typically August, the year's most comfortable month (6.9/10). Mattapoisett is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 28°F (-2°C). The wettest month is typically December and the driest is August; the year sees roughly 45 in (1137 mm) of precipitation.

• Best time to visitAugust — the year's comfort peak (6.9/10)
• Warmest monthJuly — average high 80°F (27°C)
• Coolest monthJanuary — average low 28°F (-2°C)
• Wettest monthDecember (4.5 in (114 mm))
• Driest monthAugust (2.8 in (71 mm))
• Annual precipitation45 in (1137 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromRochester, 16 km away (1900-2026)