30YearWeather
Porto, June 9
Porto street view during June
Historical Weather Analysis

Porto Weather on June 9 — Best Time to Visit?

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

clear-day

21.8°C

High

14.5°C

Low

20%

Rain

☀️ Feels like 22.1°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

June 9 is generally a great time to visit Porto. While there is a slight chance of rain (20%), showers are usually brief. Expect comfortable 22°C weather. Porto is currently in its most popular travel window, meaning vibrant crowds and premium pricing.

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 June 9

"Mild & Comfortable. Expect average highs of 21.8°C. 20% chance of rain."

What to Wear in Porto in June

Based on historical data for June 9, Porto typically experiences temperatures between 14.5°C and 21.8°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (20% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Porto

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

21.8°C

Daytime Peak

Average Low

extreme-cold

14.5°C

Nighttime Low

Feels Like

partly-cloudy-day

22.1°C

☀️ Feels accurate

Rain Chance

rain

20%

Avg 1mm if it rains

Cloud Cover

cloudy

51%

Overcast

Pressure

pressure

1016.7 hPa

Low volatility

Porto Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

72%Reliable

Based on 10 years of data

Temperature
±4.5°CVariable
Precipitation
10-30%Predictable

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

Sun Exposure

UV Index & Safety Guide

5.9Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

05:00 - 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?

77Good
TemperatureWarm
HumidityMuggy
WindBreezy

Dew Point

18°C

Noticeable

Heat Stress

Low

No heat warning

🙂 Best outdoor time:
Any time during daylight hours

Marine Conditions

Water Temp
18.1°C
🥃 Refreshing Tonic
Avg daily surface temperature
Surf Conditions
1.46m
🌊 Surfers Only
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

⚠️ Mixed Conditions

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in Portugal

Flight Traffic

High

98/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~239

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Porto

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

05:03

☀️ Noon

12:35

🌇 Sunset

20:07

⏱️ Daylight

15h 3m

Golden Hour
Morning05:03 - 05:44
19:25 - 20:07Evening

Wind Speed

wind

19.3 km/h

Gentle breeze

Sunshine

clear-day

12.2 hrs

Direct Sun (Cloud-free)

Humidity

humidity

79%

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

☀️ Excellent

84/100

Tourist Crowds

🔴 Very Busy

90/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

100Score
Atmospheric Pressure1016.7 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
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 June 9 averages 21.8°C with a 20% precipitation probability. Wedding/Outdoor Event Score: 96/100."

— 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
2025
33°C
Coldest
2019
11.3°C
Rainiest
2023
10.1mm

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 (June 9) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Porto Worth Visiting on June 9?

Planning a trip to Porto on June 9? 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 21.8°C with a 20% historical precipitation risk.

✈️ Travel Logistics: Approximately 239 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 18.1°C (refreshing tonic). Wave conditions are generally surfers only with heights around 1.46m.

📊 Historical Extremes: The hottest June 9 recorded in the last 30 years saw temperatures hit 33°C in 2025, while the coldest dropped to 11.3°C in 2019.

Porto Weather FAQ