In July, Portland typically sees daytime highs of 26.8°C and overnight lows around 11.7°C. Compared to the annual average high of 16.7°C, July runs +10.1°C.
July in Portland averages a daytime high of 26.8°C and an overnight low of 11.7°C.
July runs +10.1°C compared to Portland's annual average high of 16.7°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 26.8°C and cooler evenings around 11.7°C.