Portland weather in July
Long-run climate averages for Portland, OR in July, plus what the forecast models say for the days ahead.
In July, Portland averages 83°F by day and 56°F at night. The wettest month is usually December.
July in Portland averages a daytime high of 83°F and an overnight low of 56°F, which reads as warm for this part of the world. It is the warmest month of the year here. Across the whole year Portland sees roughly 50 inches of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Portland forecast with every model compared and how much they currently agree.
Portland weather by month
what to expect in Portland through the year, 1991-2020 averagesHere is Portland's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Portland by season.
Bottom line: over the last 30 days the American model has been the most accurate forecast for Portland, scoring 93/100 on our CheckWeather Score, ahead of the European at 90. See the full US accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Portland in July?
Is July a good time to visit Portland?
Does it rain a lot in Portland in July?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .