September weather forecast
Oregon, USA

September in Oregon is a harmonious blend of summer's residual warmth and the first inklings of autumn's cool embrace. The Cascade Mountains, majestic in their silhouette, experience temperatures around the mark of 57°F (13.9°C). The coastline, ever influenced by the Pacific Ocean, exhibits temperatures from 56°F (13.3°C) to 66°F (18.9°C).

Eugene, a significant city nestled in the Willamette Valley, often becomes a point of interest in September. As the home of the University of Oregon, the city undergoes a transformation with students returning, infusing vibrancy and energy. The weather remains conducive for outdoor events and activities, though the evenings hint at the cooler days ahead.

By September, Oregon's terrain is devoid of snow, except for the perpetual snowcaps on the highest peaks. This month, outdoor enthusiasts find solace in Oregon's nature trails, where the trees slowly start to display a spectrum of oranges, yellows, and reds, heralding the onset of the fall season.

Contrasted with August, September's days grow perceptibly shorter, and there's a gradual dip in temperature. Rain showers become more frequent, particularly towards the month's end, signifying the impending wetter months. September in Oregon is a transitional phase, a prelude to the vivid and cooler October, where the state fully dons its autumnal cloak, presenting a mesmerizing tapestry of changing colors and cooler breezes.

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• Portland - September »
  In Portland, in September, it is raining for 10.4 days, with typically 1.69" (43mm) of accumulated precipitation. In Portland, in September, it is raining for 10.4 days, with typically 1.69" (43mm) of accumulated precipitation.
• Salem - September »
  The onset of September in Salem entails a subtle temperature shift, as the average high-temperature eases from a warm 82°F (27.8°C) in August to a still moderately hot 74.7°F (23.7°C). In Salem in September, it is raining for 8.9 days, with typically 1.22" (31mm) of accumulated precipitation.
• Eugene - September »
  The weather in September in Eugene starts to tilt towards fall, bringing a mild drop in temperatures compared to its preceding summer months. In Eugene, during September, the rain falls for 5.2 days and regularly aggregates up to 0.51" (13mm) of precipitation.
• Gresham - September »
  In Gresham during September, the rain falls for 9.7 days and regularly aggregates up to 1.85" (47mm) of precipitation. On the first day of September in Gresham, sunrise is at 6:31 am and sunset at 7:48 pm.
• Hillsboro - September »
  In Hillsboro, Oregon, during September, the rain falls for 10.1 days and regularly aggregates up to 1.46" (37mm) of precipitation. September temperatures in Hillsboro vary between a high-temperature of 73.9°F (23.3°C) and a low-temperature of 51.4°F (10.8°C).
• Beaverton - September »
  In Beaverton during September, the rain falls for 10.5 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Beaverton, during September, the rain falls for 10.5 days and regularly aggregates up to 1.54" (39mm) of precipitation.
• Bend - September »
  In Bend, during September, the rain falls for 6.6 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Bend in September, it is raining for 6.6 days, with typically 0.83" (21mm) of accumulated precipitation.
• Medford - September »
  In Medford in September, during 5.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Medford during September, the rain falls for 5.5 days and regularly aggregates up to 0.67" (17mm) of precipitation.
• Springfield - September »
  On the first day of September in Springfield, sunrise is at 6:35 am and sunset at 7:48 pm. Springfield experiences a significant downturn from peak daytime temperatures throughout September, with the average low-temperature dipping to a frosty 47.3°F (8.5°C).
• Corvallis - September »
  In Corvallis in September, during 9.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. On the last day of September, in Corvallis, sunrise is at 7:09 am and sunset at 6:56 pm PDT.
• Albany - September »
  In Albany during September, the rain falls for 9.6 days and regularly aggregates up to 1.34" (34mm) of precipitation. In September, in Albany the rain falls for 9.6 days.
• Tigard - September »
  In Tigard in September, during 10.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. September, the first month of the autumn in Tigard, is still a warm month, with an average temperature ranging between min 52°F (11.1°C) and max 74.3°F (23.5°C).