Verdict: Excellent month
Mykonos Weather in September
September runs warm in Mykonos, with daily highs around 27°C (81°F) and nights near 23°C (73°F). Rain is a non-issue, with only ~1 wet day in an average year. Overall, September is one of the best months of the year to be in Mykonos.
Average high
27°C / 81°F
Average low
23°C / 73°F
Rain days
~1
Precipitation
8 mm
What to pack for Mykonos in September
- Summer clothes, plus one light layer for air-con and evenings
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Mykonos: Jul (29°C / 84°F) · Coolest: Jan (14°C / 57°F) · Wettest: Jan (~10 rain days)
14°
11°
Jan
15°
11°
Feb
16°
11°
Mar
19°
14°
Apr
22°
17°
May
27°
21°
Jun
29°
24°
Jul
29°
24°
Aug
27°
23°
Sep
23°
19°
Oct
19°
15°
Nov
16°
13°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)