Mykonos · AutumnMonth summary
Mykonos weather in September
✅ Excellent
🌡️ Temperature min / max
21°C – 25°C
🌧 Rainy days
3% of days
☀️ Sunshine
11.5h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
9.0/10
📅 📅 Best month
July (9.7/10)
Quick decision
Should you visit Mykonos in September?
✅ Excellent
✅ Yes if: you want to combine beach, sightseeing and hiking — versatile weather (25°C, little rain).
❌ No if: you want to avoid tourist crowds — this is the busiest period.
Our take: September is an excellent time to visit Mykonos. 25°C, 11.5h of sunshine — optimal conditions.
By trip type
Mykonos 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 season — bars and clubs buzzing, terraces open late into the evening Autumn in Mykonos is often underrated: 25°C, golden light and declining crowds. An interesting window. Rain is virtually absent (3% of days) — ideal for planning without a backup. This is one of the best times of year to visit Mykonos.
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All months for Mykonos
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 10°C | 13°C | 35% | 2.3 | 8.6h | 5.5/10 |
| ⛅ February | 10°C | 14°C | 23% | 1.5 | 9.1h | 7.0/10 |
| ⛅ March | 11°C | 15°C | 23% | 1.4 | 10.7h | 7.1/10 |
| 🌤️ April | 13°C | 18°C | 14% | 0.9 | 11.8h | 7.5/10 |
| 🌤️ May | 16°C | 21°C | 12% | 0.4 | 12.8h | 8.3/10 |
| ☀️ June | 21°C | 25°C | 5% | 0.2 | 13.4h | 9.3/10 |
| ☀️ July | 23°C | 27°C | 0% | 0.1 | 13.1h | 9.7/10 |
| ☀️ August | 23°C | 27°C | 3% | 0.1 | 12.7h | 9.5/10 |
| ☀️ September | 21°C | 25°C | 3% | 0.2 | 11.5h | 9.0/10 |
| 🌤️ October | 17°C | 21°C | 11% | 0.6 | 10.0h | 7.9/10 |
| 🌤️ November | 14°C | 18°C | 23% | 1.6 | 8.8h | 7.2/10 |
| ⛅ December | 11°C | 15°C | 32% | 2.2 | 8.1h | 6.4/10 |
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, Mykonos averages 25°C, 3% rainy days and 11.5h of sunshine per day. Overall weather score: 9.0/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 9.7/10). Difference:
- 🌡️ Max temperature : +2°C
- 🌧 Rainy days : -3%
- ☀️ Sunshine : +1.6h/day
FAQ
FAQ — Mykonos in September
Is September a good time to visit Mykonos?
September is an excellent time to visit Mykonos (score 9.0/10). With 25°C, 11.5h of sunshine and 3% rain, conditions are very favourable.
What to do in Mykonos in September?
With 25°C and 11.5h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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