30YearWeather
Porto, December 1
Porto street view during December
Historical Weather Analysis

Porto Weather on December 1 — Best Time to Visit?

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

cloudy

14°C

High

7.8°C

Low

35%

Rain

🌤️ Feels like 13.6°C

partly-cloudy-day
YES, GOOD CHOICE
Holiday

December 1 is generally a great time to visit Porto. While there is a slight chance of rain (35%), showers are usually brief. Expect comfortable 14°C weather. You'll find plenty of company in Porto this month as tourism activity remains quite robust. Note: December 1 is Restoration of Independence in Porto, so expect special events, closures, and festive atmosphere.

Currency

EUR

Euro

Language

Portuguese

Driving

Right side

Connect

Porto has 4G from all Portuguese carrier...

Safety

Very High Safety

GPI: 1.301

Porto Weather Forecast for December 1

"Mild & Comfortable. Expect average highs of 14°C. 35% chance of rain."

What to Wear in Porto in December

Based on historical data for December 1, Porto typically experiences temperatures between 7.8°C and 14°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 35% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Porto

View Guide

Smart Suitcase

  • Light Jacket
  • Long Pants
  • Umbrella

Average High

extreme-hot

14°C

Daytime Peak

Average Low

extreme-cold

7.8°C

Nighttime Low

Feels Like

partly-cloudy-day

13.6°C

🌤️ Feels accurate

Rain Chance

rain

35%

Avg 3mm if it rains

Cloud Cover

cloudy

57%

Overcast

Pressure

pressure

1019.2 hPa

Medium volatility

Porto Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

97%Highly Predictable

Based on 10 years of data

Temperature
±2.5°CModerate
Precipitation
18-53%Predictable

🎯 This date historically delivers consistent weather 97% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

0Low
036811+

Protection Needed

SPF 15 for extended outdoor time

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

Outdoor Comfort

How pleasant is it outside?

63Moderate
TemperatureCool
HumidityMuggy
WindBreezy

Dew Point

10.8°C

Pleasant

Heat Stress

Low

No heat warning

😐 Best outdoor time:
Any time during daylight hours

Marine Conditions

Water Temp
15.5°C
🥶 Polar Plunge
Avg daily surface temperature
Surf Conditions
2.37m
🌊 Surfers Only
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

❄️ Cold Water Hazard

Travel & Logistics Insights

Local Calendar

Holiday

Restoration of Independence

Flight Traffic

Busy

68/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~165

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Porto

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

07:41

☀️ Noon

12:24

🌇 Sunset

17:08

⏱️ Daylight

9h 26m

Golden Hour
Morning07:41 - 08:24
16:25 - 17:08Evening

Wind Speed

wind

18.4 km/h

Gentle breeze

Sunshine

clear-day

6.5 hrs

Direct Sun (Cloud-free)

Humidity

humidity

81%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Porto

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 Porto

Travel Comfort Index

Real-time tourism conditions

Weather Quality

⛅ Good

72/100

Tourist Crowds

🟡 Busy

80/100

Price Level

💰💰💰 Expensive

95/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1019.2 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
41AQI
Good
PM2.5 Concentration5.3 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Stable

Seismic Activity

Zero seismic activity detected in 30 years.

Total events (30y):0
💡 No earthquake preparedness needed. Enjoy your stay!
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Porto on December 1 averages 14°C with a 35% precipitation probability. Wedding/Outdoor Event Score: 83/100."

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

Porto Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2024
20.5°C
Coldest
2017
4.1°C
Rainiest
2025
14.7mm

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 (December 1) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Porto Worth Visiting on December 1?

Planning a trip to Porto on December 1? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 14°C with a 35% historical precipitation risk.

🎉 Local Event: The date coincides with Restoration of Independence, which may influence local business hours and event availability.

✈️ Travel Logistics: Approximately 165 landing slots available daily during this period, indicating manageable crowd levels.

💉 Health Advisory: 6 vaccinations are recommended for Portugal, including COVID-19.

🌊 Coastal Conditions: Water temperature averages 15.5°C (polar plunge). Wave conditions are generally surfers only with heights around 2.37m.

📊 Historical Extremes: The hottest December 1 recorded in the last 30 years saw temperatures hit 20.5°C in 2024, while the coldest dropped to 4.1°C in 2017.

Porto Weather FAQ