30YearWeather
Portland, January 11
Portland street view during January
Historical Weather Analysis

Portland Weather on January 11 — Best Time to Visit?

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

rain

7.9°C

High

2°C

Low

51%

Rain

❄️ Feels like 5.4°C (wind chill)

rain
IT'S A GAMBLE

January 11 sees frequent showers in Portland. Historical data shows a 51% chance of rain, so pack accordingly. Temperatures average 8°C. Portland is seeing high visitor numbers, so iconic spots may be busier than usual.

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Portland Weather Forecast for January 11

"Rainy & Overcast. Expect average highs of 7.9°C. 51% chance of snow."

What to Wear in Portland in January

Based on historical data for January 11, Portland typically experiences temperatures between 2°C and 7.9°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 51% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Portland

View Guide

Smart Suitcase

  • Heavy Coat
  • Scarf
  • Gloves
  • Umbrella

Average High

extreme-hot

7.9°C

Daytime Peak

Average Low

extreme-cold

2°C

Nighttime Low

Feels Like

partly-cloudy-day

5.4°C

❄️ Slightly colder

Snow Chance

snow

51%

Avg 5mm if it snows

Snowfall

snow

0.3 cm

~51% chance

Pressure

pressure

1018.4 hPa

High volatility

Portland Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

74%Reliable

Based on 10 years of data

Temperature
±3.5°CModerate
Precipitation
26-80%Moderate

Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.

Sun Exposure

UV Index & Safety Guide

0.2Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 400 min to burn

Type III-IV

🟡 600 min to burn

Type V-VI

🟢 1000 min to burn

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

Outdoor Comfort

How pleasant is it outside?

45Poor
TemperatureCool
HumidityMuggy
WindLight Breeze

Dew Point

5.7°C

Dry air

Heat Stress

Low

No heat warning

😕 Best outdoor time:
Midday (11 AM - 3 PM) when warmest

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in United States

Flight Traffic

Busy

62/100 pressure index

Health Advisory

Healthy

Routine only • View Details →

Landing Slots

~203

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Portland

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

07:50

☀️ Noon

12:19

🌇 Sunset

16:49

⏱️ Daylight

8h 59m

Golden Hour
Morning07:50 - 08:38
16:01 - 16:49Evening

Wind Speed

wind

14.5 km/h

Gentle breeze

Sunshine

clear-day

3.5 hrs

Direct Sun (Cloud-free)

Humidity

humidity

86%

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

🌧️ Variable

59/100

Tourist Crowds

🟢 Moderate

40/100

Price Level

💰💰 Moderate

50/100

Health & Wellbeing

Meteo-Health Forecast

70Score
Atmospheric Pressure1018.4 hPa
Volatility:High
Migraine RiskHigh

Rapid pressure changes detected. High risk for meteosensitive people.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexExcellent

Fish are active due to pressure changes.

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 Jan (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 January 11 averages 7.9°C with a 51% precipitation probability. Wedding/Outdoor Event Score: 39/100."

— 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
2018
11.6°C
Coldest
2017
-5.6°C
Rainiest
2018
29.2mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

Compare Other Cities

Same date (January 11) in other destinations

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📍 Is Portland Worth Visiting on January 11?

Planning a trip to Portland on January 11? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 7.9°C with a 51% historical precipitation risk.

✈️ Travel Logistics: Approximately 203 landing slots available daily during this period, indicating manageable crowd levels.

📊 Historical Extremes: The hottest January 11 recorded in the last 30 years saw temperatures hit 11.6°C in 2018, while the coldest dropped to -5.6°C in 2017.

Portland Weather FAQ