30YearWeather
Sintra, February 21
Sintra street view during February
Historical Weather Analysis

Sintra Weather on February 21 — Best Time to Visit?

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

partly-cloudy-day

15.1°C

High

9.7°C

Low

18%

Rain

🌤️ Feels like 15.1°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

February 21 is generally a great time to visit Sintra. While there is a slight chance of rain (18%), showers are usually brief. Expect comfortable 15°C weather. Sintra is currently in its most popular travel window, meaning vibrant crowds and premium pricing.

Currency

EUR

Euro

Language

Portuguese

Driving

Right side

Safety

Very High Safety

GPI: 1.301

Sintra Weather Forecast for February 21

"Mild & Comfortable. Expect average highs of 15.1°C. 18% chance of rain."

What to Wear in Sintra in February

Based on historical data for February 21, Sintra typically experiences temperatures between 9.7°C and 15.1°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (18% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Sintra

View Guide

Smart Suitcase

  • Light Jacket
  • Long Pants

Average High

extreme-hot

15.1°C

Daytime Peak

Average Low

extreme-cold

9.7°C

Nighttime Low

Feels Like

partly-cloudy-day

15.1°C

🌤️ Feels accurate

Rain Chance

rain

18%

Avg 1.1mm if it rains

Cloud Cover

cloudy

45%

Overcast

Pressure

pressure

1021.5 hPa

Medium volatility

Sintra Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

100%Highly Predictable

Based on 10 years of data

Temperature
±2.0°CStable
Precipitation
9-27%Predictable

🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

1.6Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 50 min to burn

Type III-IV

🟡 75 min to burn

Type V-VI

🟢 125 min to burn

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

Outdoor Comfort

How pleasant is it outside?

67Good
TemperatureMild
HumidityMuggy
WindBreezy

Dew Point

10.9°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 Portugal

Flight Traffic

High

89/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~304

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Sintra

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

08:22

☀️ Noon

13:52

🌇 Sunset

19:22

⏱️ Daylight

10h 59m

Golden Hour
Morning08:22 - 08:59
18:45 - 19:22Evening

Wind Speed

wind

23 km/h

Moderate wind

Sunshine

clear-day

8.9 hrs

Direct Sun (Cloud-free)

Humidity

humidity

76%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Sintra

Smart Flight Estimator

Airport-to-Airport Logistics

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Travel Health & Safety in Sintra

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

86/100

Tourist Crowds

🟢 Quiet

35/100

Price Level

💰 Affordable

45/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1021.5 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexPoor

High pressure may reduce activity.

Air Quality Forecast
59AQI
Moderate
PM2.5 Concentration11.1 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):5
In Feb (30y):1
Last in Feb:2025-02-17
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Sintra on February 21 averages 15.1°C with a 18% precipitation probability. Wedding/Outdoor Event Score: 86/100."

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

Sintra Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2020
20.4°C
Coldest
2018
8.1°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

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Same date (February 21) in other destinations

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📍 Is Sintra Worth Visiting on February 21?

Planning a trip to Sintra on February 21? 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 15.1°C with a 18% historical precipitation risk.

✈️ Travel Logistics: Approximately 304 landing slots available daily during this period, indicating manageable crowd levels.

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

📊 Historical Extremes: The hottest February 21 recorded in the last 30 years saw temperatures hit 20.4°C in 2020, while the coldest dropped to 8.1°C in 2018.

Sintra Weather FAQ