30YearWeather
Portland, July 1
Portland street view during July
Historical Weather Analysis

Portland Weather on July 1 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

clear-day

25.9°C

High

13.2°C

Low

7%

Rain

☀️ Feels like 26.5°C (humidity)

clear-day
YES, IT'S PARADISE
Peak Season

July 1 is statistically one of the best days of the year in Portland. With minimal rain risk (7%) and pleasant highs of 26°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Portland right now—this is when the city truly comes alive with visitors.

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Portland Weather Forecast for July 1

"Warm & Sunny. Expect average highs of 25.9°C. 7% chance of rain."

What to Wear in Portland in July

Based on historical data for July 1, Portland typically experiences temperatures between 13.2°C and 25.9°C. We recommend packing t-shirt, light clothing, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (7% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Portland

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing
  • Layers (Onion System)

Average High

extreme-hot

25.9°C

Daytime Peak

Average Low

extreme-cold

13.2°C

Nighttime Low

Feels Like

partly-cloudy-day

26.5°C

☀️ Feels accurate

Rain Chance

rain

7%

Avg 0.2mm if it rains

Cloud Cover

cloudy

42%

Overcast

Pressure

pressure

1016.9 hPa

Low volatility

Portland Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

87%Highly Predictable

Based on 10 years of data

Temperature
±3.2°CModerate
Precipitation
4-20%Predictable

🎯 This date historically delivers consistent weather 87% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

5.6Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

04:00 - 10:00

Afternoon

16:00 - 20:00

Time to Sunburn

Type I-II

🔴 14 min to burn

Type III-IV

🟡 21 min to burn

Type V-VI

🟢 35 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

87Excellent
TemperatureWarm
HumidityHumid
WindLight Breeze

Dew Point

18.3°C

Noticeable

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

99/100 pressure index

Health Advisory

Healthy

Routine only • View Details →

Landing Slots

~324

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Portland

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

04:27

☀️ Noon

12:15

🌇 Sunset

20:04

⏱️ Daylight

15h 37m

Golden Hour
Morning04:27 - 05:12
19:18 - 20:04Evening

Wind Speed

wind

12.2 km/h

Gentle breeze

Sunshine

clear-day

12.8 hrs

Direct Sun (Cloud-free)

Humidity

humidity

63%

Slightly humid

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

94/100

Tourist Crowds

🔴 Very Busy

95/100

Price Level

💰💰💰 Expensive

95/100

Health & Wellbeing

Meteo-Health Forecast

100Score
Atmospheric Pressure1016.9 hPa
Volatility:Low
Migraine RiskLow

Stable conditions. Low risk of headaches.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
59AQI
Moderate
PM2.5 Concentration22 µg/m³

Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):2
In Jul (30y):0
💡 Very rare tremors. Standard travel precautions apply.
Medium

Volcanic Activity

Nearest: Mount St. Helens

84km away

"According to 30YearWeather's analysis of 30 years of NASA satellite data, Portland on July 1 averages 25.9°C with a 7% precipitation probability. Wedding/Outdoor Event Score: 100/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Portland Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2025
31.5°C
Coldest
2020
11.1°C
Rainiest
2019
3.3mm

Compare Other Cities

Same date (July 1) in other destinations

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📍 Is Portland Worth Visiting on July 1?

Planning a trip to Portland on July 1? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.9°C with a 7% historical precipitation risk.

✈️ Travel Logistics: Approximately 324 landing slots available daily during this period, indicating manageable crowd levels.

📊 Historical Extremes: The hottest July 1 recorded in the last 30 years saw temperatures hit 31.5°C in 2025, while the coldest dropped to 11.1°C in 2020.

Portland Weather FAQ