October 17 is generally a great time to visit Thessaloniki. While there is a slight chance of rain (17%), showers are usually brief. Expect comfortable 20°C weather. Thessaloniki is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Thessaloniki
Currency
EUR
€ Euro
Language
Greek
Driving
Right side
Connect
As of 2021, Thessaloniki has 5G from Cos...
Safety
High Safety
GPI: 1.838
Thessaloniki Weather Forecast for October 17
"Mild & Comfortable. Expect average highs of 20.1°C. 17% chance of rain."
What to Wear in Thessaloniki in October
Based on historical data for October 17, Thessaloniki typically experiences temperatures between 12.4°C and 20.1°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (17% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Thessaloniki
Smart Suitcase
- Light Jacket
- Long Pants
Average High
20.1°C
Daytime Peak
Average Low
12.4°C
Nighttime Low
Feels Like
20.1°C
☀️ Feels accurate
Rain Chance
17%
Avg 1.1mm if it rains
Cloud Cover
52%
Overcast
Pressure
1019 hPa
Medium volatility
Thessaloniki Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 92% 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
🔴 53 min to burn
Type III-IV
🟡 80 min to burn
Type V-VI
🟢 133 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
15.5°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
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Greece
Flight Traffic
High
85/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~85
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Thessaloniki
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:42
☀️ Noon
12:14
🌇 Sunset
17:47
⏱️ Daylight
11h 5m
Wind Speed
9 km/h
Light breeze
Sunshine
7.6 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Thessaloniki
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Thessaloniki
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Thessaloniki on October 17 averages 20.1°C with a 17% precipitation probability. Wedding/Outdoor Event Score: 99/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Thessaloniki Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 18
20°C • 14% rain
Score
100
October 19
20°C • 11% rain
Score
100
October 20
20°C • 12% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
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Same date (October 17) in other destinations
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🌍 Explore the same date in different destinations around the world
📍 Is Thessaloniki Worth Visiting on October 17?
Planning a trip to Thessaloniki on October 17? 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 20.1°C with a 17% historical precipitation risk.
✈️ Travel Logistics: Approximately 85 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Greece, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 21.8°C (swimming pool). Wave conditions are generally lake-like with heights around 0.12m.
📊 Historical Extremes: The hottest October 17 recorded in the last 30 years saw temperatures hit 24°C in 2017, while the coldest dropped to 10.4°C in 2021.