Corfu or Zakynthos in September?
In September, Corfu and Zakynthos are overall neck and neck — it comes down to your priorities.
CorfuPhoto: "dronepicr" · CC BY 2.0
ZakynthosPhoto: dronepicr · CC BY 2.0Key figures in September
| Criterion | Corfu | Zakynthos |
|---|---|---|
| Day | 26 °C ★ | 26 °C |
| Night | 21 °C | 23 °C ★ |
| Sea | 25 °C | 25 °C ★ |
| Rainy days | 4 rainy days | 3 rainy days ★ |
| Sun | 6 h/day | 7 h/day ★ |
Winner by travel type
Corfu or Zakynthos in September: the short answer
In September, Corfu and Zakynthos are essentially level on the overall climate score (both around 94/100). The decision comes down to the individual criteria below.
Across the whole year Corfu averages a climate score of 69/100, Zakynthos 70/100. Both profiles below are historical monthly averages, not a forecast.
Weather in September, side by side
By day, Corfu sits near 26 °C and Zakynthos near 26 °C — warmer in Corfu. At night it is roughly 21 °C versus 23 °C.
On rain, Corfu sees about 4 rainy days in September and Zakynthos about 3 — drier in Zakynthos. Zakynthos gets more sunshine (6 vs 7 hours a day).
Sea temperature and swimming
In September the water is about 25 °C at Corfu and 25 °C at Zakynthos — warmer for swimming at Zakynthos. Over the year, Corfu is comfortable for swimming (from ~21 °C) in June, July, August, September and October, Zakynthos in June, July, August, September and October. Peak sea warmth is August for Corfu and August for Zakynthos.
Rain and sun across the year
Over a full year Corfu records roughly 83 rainy days and Zakynthos about 73 — the drier of the two overall is Zakynthos. At their sunniest, Corfu reaches about 10 hours of sun a day (June) and Zakynthos about 10 (June). If dependable dry, sunny weather is your top priority, weigh these annual totals alongside the single month above.
Best time to visit each
Climatically, Corfu is at its best in June, July, August and September, while Zakynthos peaks in June, July, August and September. If your dates are fixed, pick the destination whose strong season overlaps them; if you are flexible, plan around these windows.
Which suits which kind of trip
Based on the September scores for each travel style:
Beach & swimming: both are close.
City breaks: Zakynthos scores higher in September.
Active & hiking: Zakynthos scores higher in September.
Family: both are close.
Verdict: which should you pick?
There is no single winner — it depends on your month and your priority. For September specifically, use the head-to-head above; over the year, Zakynthos carries the slightly higher overall climate score. Choose Corfu if its strong months and profile match your plan, Zakynthos if its do. The month-by-month pages for each destination give you the full picture before you book.