Portland Oregon Climate & Weather
Portland Oregon Climate Chart
Portland has a temperate oceanic climate, with four distinct seasons. Winters, between December and February, are mild and wet, while summers, between June and August, are warm and comparatively dry. Summer temperatures average between 53°F (12°C) and 81°F (27°C), but temperatures can be substantially higher during heatwaves.
Winter temperatures average between 35°F (2°C) and 51°F (11°C). Spring and autumn are generally mild but unpredictable seasons. Rain is less common between June and September, but the weather is extremely wet between November and April.