Portland weather
Our guide to the weather in Portland during June
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 June.
How warm is it in Portland during June?
The temperature reaches around 23℃ during the daytime in June, falling away to 10℃ 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 June?
On average, there will be 4 rainy days during the month, amounting to 75.5mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Portland during June?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in June. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.
Weather in Portland
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