September 28 is generally a great time to visit Thessaloniki. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 24°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 September 28
"Mild & Comfortable. Expect average highs of 24.1°C. 16% chance of rain."
What to Wear in Thessaloniki in September
Based on historical data for September 28, Thessaloniki typically experiences temperatures between 15.8°C and 24.1°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (16% 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
24.1°C
Daytime Peak
Average Low
15.8°C
Nighttime Low
Feels Like
24.7°C
☀️ Feels accurate
Rain Chance
16%
Avg 1.4mm if it rains
Cloud Cover
46%
Overcast
Pressure
1015.9 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 84% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 26 min to burn
Type III-IV
🟡 39 min to burn
Type V-VI
🟢 65 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
18.3°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Greece
Flight Traffic
High
94/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~94
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Thessaloniki
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:22
☀️ Noon
12:20
🌇 Sunset
18:18
⏱️ Daylight
11h 55m
Wind Speed
10.6 km/h
Light breeze
Sunshine
9.2 hrs
Direct Sun (Cloud-free)
Humidity
70%
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
💰💰💰 Expensive
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 September 28 averages 24.1°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— 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
Compare Other Cities
Same date (September 28) in other destinations
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📍 Is Thessaloniki Worth Visiting on September 28?
Planning a trip to Thessaloniki on September 28? 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 24.1°C with a 16% historical precipitation risk.
✈️ Travel Logistics: Approximately 94 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 26.1°C (tropical bath). Wave conditions are generally lake-like with heights around 0.14m.
📊 Historical Extremes: The hottest September 28 recorded in the last 30 years saw temperatures hit 27.5°C in 2024, while the coldest dropped to 10.7°C in 2018.