June 15 is generally a great time to visit Portland. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 21°C weather. Portland is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Portland
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Portland Weather Forecast for June 15
"Mild & Comfortable. Expect average highs of 20.6°C. 22% chance of rain."
What to Wear in Portland in June
Based on historical data for June 15, Portland typically experiences temperatures between 10.6°C and 20.6°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Portland
Smart Suitcase
- Light Jacket
- Long Pants
Average High
20.6°C
Daytime Peak
Average Low
10.6°C
Nighttime Low
Feels Like
20.7°C
☀️ Feels accurate
Rain Chance
22%
Avg 1mm if it rains
Cloud Cover
62%
Overcast
Pressure
1018.1 hPa
Low volatility
Portland Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 83% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 10:00
16:00 - 20:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
14.9°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
High
91/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~297
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Portland
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:22
☀️ Noon
12:12
🌇 Sunset
20:02
⏱️ Daylight
15h 39m
Wind Speed
12.3 km/h
Gentle breeze
Sunshine
10.6 hrs
Direct Sun (Cloud-free)
Humidity
70%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Portland
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Portland
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
Volcanic Activity
Nearest: Mount St. Helens
84km away
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Portland on June 15 averages 20.6°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Portland Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
June 19
21.8°C • 16% rain
Score
100
June 20
22.3°C • 11% rain
Score
100
June 21
23.1°C • 8% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (June 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Portland Worth Visiting on June 15?
Planning a trip to Portland on June 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 20.6°C with a 22% historical precipitation risk.
✈️ Travel Logistics: Approximately 297 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest June 15 recorded in the last 30 years saw temperatures hit 26.6°C in 2019, while the coldest dropped to 7.5°C in 2016.