Portland weather
Our guide to the weather in Portland during July
We've looked at the most up-to-date weather data for Portland, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Portland weather in July.
How warm is it in Portland during July?
The temperature reaches around 28℃ during the daytime in July, falling away to 13℃ at night. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Portland during July?
July is typically the driest month in Portland. On average, in July you'll see rain on just one day in the month. In other words, you shouldn't see any of the wet stuff. You're not likely to see a thunderstorm during your trip.
Is it windy in Portland during July?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in July. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.
Weather in Portland
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