Portland

What is the climate like in Portland?

The best time to visit Portland is typically September – October, with trip comfort peaking in September (6.8/10). Portland is warmest in July, when daily highs average 89°F (32°C), and coolest in January, when lows fall to about 33°F (0°C). The wettest month is typically February and the driest is November; the year sees roughly 58 in (1475 mm) of precipitation.

• Best time to visitSeptember – October — comfort peaks in September (6.8/10)
• Warmest monthJuly — average high 89°F (32°C)
• Coolest monthJanuary — average low 33°F (0°C)
• Wettest monthFebruary (6.6 in (169 mm))
• Driest monthNovember (3.4 in (86 mm))
• Annual precipitation58 in (1475 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromPortland Sewage Plt, 1 km away (1955-2026)