August 15 is statistically one of the best days of the year in Thessaloniki. With minimal rain risk (7%) and pleasant highs of 32°C, it's ideal for outdoor adventures. As it's peak season for Thessaloniki, we recommend booking your stay well in advance to secure the best rates. Note: August 15 is Assumption Day in Thessaloniki, so expect special events, closures, and festive atmosphere.
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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 August 15
"Warm & Sunny. Expect average highs of 31.6°C. 7% chance of rain."
What to Wear in Thessaloniki in August
Based on historical data for August 15, Thessaloniki typically experiences temperatures between 21.9°C and 31.6°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (7% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Thessaloniki
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
31.6°C
Daytime Peak
Average Low
21.9°C
Nighttime Low
Feels Like
35.9°C
🔥 Feels warmer
Rain Chance
7%
Avg 0.2mm if it rains
Cloud Cover
20%
Mainly clear
Pressure
1012.6 hPa
Low volatility
Thessaloniki Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
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?
Dew Point
22.6°C
Humid/Sticky
Heat Index
35.9°C
Feels hotter
🙂 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Holiday
Assumption Day
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~100
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Thessaloniki
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:39
☀️ Noon
12:34
🌇 Sunset
19:28
⏱️ Daylight
13h 49m
Wind Speed
11.3 km/h
Light breeze
Sunshine
12.6 hrs
Direct Sun (Cloud-free)
Humidity
59%
Comfortable
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
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
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 August 15 averages 31.6°C with a 7% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— 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
💡 Moving your event by a few days could significantly improve weather conditions
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Same date (August 15) in other destinations
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📍 Is Thessaloniki Worth Visiting on August 15?
Planning a trip to Thessaloniki on August 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31.6°C with a 7% historical precipitation risk.
🎉 Local Event: The date coincides with Assumption Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 100 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 29.5°C (hot soup). Wave conditions are generally lake-like with heights around 0.12m.
📊 Historical Extremes: The hottest August 15 recorded in the last 30 years saw temperatures hit 34.3°C in 2024, while the coldest dropped to 19.5°C in 2022.