Thessaloniki · AutumnMonth summary
Thessaloniki weather in September
✅ Good
🌡️ Temperature min / max
18°C – 28°C
🌧 Rainy days
17% of days
☀️ Sunshine
11.1h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.9/10
📅 📅 Best month
September (8.9/10)
Quick decision
Should you visit Thessaloniki in September?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Favourable conditions in September (8.9/10). September scores higher but the gap is small.
By trip type
Thessaloniki in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Peak cultural season — museums and sites accessible in good weather conditions Autumn in Thessaloniki is often underrated: 28°C, golden light and declining crowds. An interesting window. Rain risk remains low (17% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if September (8.9/10) remains theoretically better.
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 2°C | 11°C | 24% | 2.1 | 8.1h | 5.5/10 |
| ⛅ February | 5°C | 13°C | 27% | 1.4 | 9.0h | 6.4/10 |
| ⛅ March | 7°C | 16°C | 36% | 2.5 | 10.4h | 7.0/10 |
| 🌤️ April | 10°C | 20°C | 27% | 1.9 | 11.6h | 7.6/10 |
| 🌤️ May | 15°C | 24°C | 32% | 2.3 | 13.0h | 8.2/10 |
| ☀️ June | 20°C | 30°C | 20% | 1.9 | 13.3h | 8.6/10 |
| ☀️ July | 22°C | 33°C | 12% | 1.1 | 13.2h | 8.0/10 |
| ☀️ August | 22°C | 32°C | 14% | 0.9 | 12.7h | 8.3/10 |
| ☀️ September | 18°C | 28°C | 17% | 1.2 | 11.1h | 8.9/10 |
| 🌤️ October | 13°C | 22°C | 16% | 1.9 | 9.6h | 7.9/10 |
| ⛅ November | 9°C | 17°C | 33% | 2.7 | 8.2h | 7.0/10 |
| ⛅ December | 5°C | 12°C | 27% | 2.7 | 7.8h | 5.4/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Thessaloniki averages 28°C, 17% rainy days and 11.1h of sunshine per day. Overall weather score: 8.9/10.
See methodology →
Comparison
September vs September (best month)
The best month is September (score 8.9/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : +0%
- ☀️ Sunshine : +0.0h/day
FAQ
FAQ — Thessaloniki in September
Is September a good time to visit Thessaloniki?
September is an excellent time to visit Thessaloniki (score 8.9/10). With 28°C, 11.1h of sunshine and 17% rain, conditions are very favourable.
What to do in Thessaloniki in September?
With 28°C and 11.1h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
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