Mykonos in September
In September, Mykonos averages 25°C (77°F) during the day and 20°C (68°F) at night, with only about 2 rainy days.
Peak seasonConditions are comfortable for sightseeing without being sweltering. Skies are generally dry and clear.
September is a great month to visit Mykonos: pleasant temperatures and relatively few wet days.
How September compares to the rest of the year in Mykonos
September is in the middle of the year for warmth in Mykonos (4th of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature runs 5°C above the annual average (20°C). September runs 2°C cooler than August (27°C) and cools 3°C in October (22°C).
September sunrise & sunset in Mykonos
Times shown for Mykonos local time (Europe/Athens), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Mykonos — September
Golden-hour and blue-hour windows for the 15th of September, in Mykonos's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Mykonos in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Peak season) and Mykonos's popularity.
Crowds & pricing — September in Mykonos
Mykonos is in peak season during this month — expect bigger crowds at famous sights, higher hotel and flight prices, and longer queues. Restaurant reservations a few days out are advisable, and any boutique hotels you have your eye on should be booked weeks ahead. The trade-off: most attractions, restaurants, and seasonal services are fully open, the weather is at its most reliable, and the city feels at its most alive.
Why this tier: excellent tourism weather beach-season conditions
Sun & mosquito risk — September in Mykonos
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Mykonos — September
Across the year Mykonos's sea swings from 16°C (February) to 25.6°C (August) — September sits at 24.6°C.
Mykonos in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 10°C / 50°F | 80 mm | 9 | 0 |
| February | 14°C / 57°F | 10°C / 50°F | 60 mm | 7 | 0 |
| March | 16°C / 61°F | 11°C / 52°F | 40 mm | 4 | 0 |
| April | 19°C / 66°F | 13°C / 55°F | 15 mm | 3 | 0 |
| May | 22°C / 72°F | 17°C / 63°F | 5 mm | 1 | 0 |
| June | 26°C / 79°F | 20°C / 68°F | 1 mm | 1 | 0 |
| July | 27°C / 81°F | 22°C / 72°F | 1 mm | 1 | 0 |
| August | 27°C / 81°F | 22°C / 72°F | 1 mm | 1 | 0 |
| September | 25°C / 77°F | 20°C / 68°F | 5 mm | 2 | 0 |
| October | 22°C / 72°F | 17°C / 63°F | 30 mm | 4 | 0 |
| November | 18°C / 64°F | 14°C / 57°F | 55 mm | 7 | 0 |
| December | 15°C / 59°F | 11°C / 52°F | 80 mm | 8 | 0 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Mykonos in September →
Frequently asked questions
How hot is Mykonos in September?
In September, Mykonos averages a high of 25°C (77°F) and a low of 20°C (68°F) — generally warm.
Does it rain a lot in Mykonos in September?
September is generally dry in Mykonos, with about 2 rainy days on average.
Is September a good time to visit Mykonos?
September is warm and mostly dry. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Mykonos in September?
Pack light layers for warm days and cooler evenings. See the full September packing list for Mykonos for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.