Portland

What is the climate like in Portland?

The best time to visit Portland is typically June, the year's most comfortable month (6.6/10). Portland is warmest in July, when daily highs average 84°F (29°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically July and the driest is November; the year sees roughly 49 in (1233 mm) of precipitation.

• Best time to visitJune — the year's comfort peak (6.6/10)
• Warmest monthJuly — average high 84°F (29°C)
• Coolest monthJanuary — average low 26°F (-3°C)
• Wettest monthJuly (5.2 in (132 mm))
• Driest monthNovember (3.2 in (82 mm))
• Annual precipitation49 in (1233 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromHartford Brainard Fld, 18 km away (1920-2026)