What to pack for Athens in September
- light, breathable clothing
- sun protection (hat, SPF 50)
Humidity averages 55%; max daily wind around 17 km/h.
How September compares
Best months in Athens: April–May & September–November. See the full best time to visit Athens guide.
Athens in September: the details
In September, Athens sees average daytime highs of 29°C (83°F) and overnight lows of 20°C (67°F). Rainfall totals roughly 18 mm across 3 rainy days, and the sun shines about 11.5 hours per day with 12.2 hours of daylight mid-month. Relative humidity averages 55%.
In context: September is the 4th-warmest month and the 10th-wettest in Athens. The sunniest month is June (13.6 h/day).
| Metric | September average |
|---|---|
| Daytime high | 29°C / 83°F |
| Overnight low | 20°C / 67°F |
| Rainfall | 18 mm over 3 rainy days |
| Sunshine | 11.5 h/day (12.2 h daylight) |
| Humidity | 55% |
| Travel score | 9.6 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Athens, Greece (37.98, 23.73) — see our methodology. Actual conditions vary year to year.
Not set on Athens? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Athens in September?
Daytime highs in Athens in September average 29°C (83°F); nights drop to about 20°C.
Does it rain in Athens in September?
Expect around 3 rainy days and 18 mm of rainfall in September.
Is September a good time to visit Athens?
September is one of the best months to visit Athens. Overall travel score: 9.6/10. The best months are April–May & September–November.
Also good in September, near Athens
Where should you go next month?
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