January 20 is generally a great time to visit Lisbon. While there is a slight chance of rain (27%), showers are usually brief. Expect comfortable 14°C weather. It's a quieter period for Lisbon, ideal for those who prefer unhurried sightseeing.
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Lisbon Weather Forecast for January 20
"Mild & Comfortable. Expect average highs of 14°C. 27% chance of rain."
What to Wear in Lisbon in January
Based on historical data for January 20, Lisbon typically experiences temperatures between 9°C and 14°C. We recommend packing light jacket, long pants to stay comfortable. With a 27% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Lisbon
Smart Suitcase
- Light Jacket
- Long Pants
Average High
14°C
Daytime Peak
Average Low
9°C
Nighttime Low
Feels Like
13.6°C
🌤️ Feels accurate
Rain Chance
27%
Avg 1.9mm if it rains
Cloud Cover
51%
Overcast
Pressure
1021.2 hPa
Medium volatility
Lisbon Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 96% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 200 min to burn
Type III-IV
🟡 300 min to burn
Type V-VI
🟢 500 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
10.8°C
Pleasant
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Portugal
Flight Traffic
Quiet
21/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~262
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Lisbon
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:52
☀️ Noon
12:48
🌇 Sunset
17:44
⏱️ Daylight
9h 52m
Wind Speed
20.7 km/h
Moderate wind
Sunshine
6.9 hrs
Direct Sun (Cloud-free)
Humidity
81%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Lisbon
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Lisbon
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
High pressure may reduce activity.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Lisbon on January 20 averages 14°C with a 27% precipitation probability. Wedding/Outdoor Event Score: 90/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Lisbon Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
January 24
14.2°C • 19% rain
Score
94
January 25
14.3°C • 20% rain
Score
94
January 23
14.2°C • 21% rain
Score
93
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (January 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Lisbon Worth Visiting on January 20?
Planning a trip to Lisbon on January 20? 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 27% historical precipitation risk.
✈️ Travel Logistics: Approximately 262 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 6 vaccinations are recommended for Portugal, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 15°C (polar plunge). Wave conditions are generally surfers only with heights around 1.68m.
📊 Historical Extremes: The hottest January 20 recorded in the last 30 years saw temperatures hit 16.8°C in 2023, while the coldest dropped to 1.3°C in 2017.