Corfu or Zakynthos in September?
On climate data, Zakynthos comes out ahead overall in September. See the per-criterion details below.
CorfuPhoto: "dronepicr" · CC BY 2.0
ZakynthosPhoto: dronepicr · CC BY 2.0Key figures in September
| Criterion | Corfu | Zakynthos |
|---|---|---|
| Average daily high | 26 °C | 26 °C |
| Average daily low | 21 °C | 23 °C |
| Sea | 25 °C | 25 °C |
| Rainy days | 12 rainy days (est.) | 8 rainy days (est.) ★ |
| Sun | 6 h/day | 6 h/day |
| Humidity | 67 % | 69 % |
Winner by travel type
Trade-offs
- Zakynthos is drier, with about 4 fewer rainy days.
Corfu or Zakynthos in September: the short answer
In September, Zakynthos comes out ahead on the overall climate score (Corfu 82/100 vs Zakynthos 89/100). That is a snapshot of one month, though — which one truly fits depends on what you want from the trip, so the breakdown below goes criterion by criterion.
This comparison focuses on September as a representative month for the pair; for any other month, use each destination's month-by-month pages. Across the whole year Corfu averages a climate score of 63/100, Zakynthos 67/100. Both profiles below are historical monthly averages, not a forecast.
Weather in September, side by side
The average daily high is about 26 °C in Corfu and 26 °C in Zakynthos — about the same. Average daily lows are around 21 °C versus 23 °C.
On rain, Corfu sees about 12 rainy days in September and Zakynthos about 8 — drier in Zakynthos. Sunshine is comparable (6 vs 6 hours a day).
Sea temperature and swimming
In September the water is about 25 °C at Corfu and 25 °C 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 130 rainy days and Zakynthos about 101 — the drier of the two overall is Zakynthos. At their sunniest, Corfu reaches about 9 hours of sun a day (July) 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: Zakynthos scores higher in September (Corfu 87 vs Zakynthos 93).
City breaks: Zakynthos scores higher in September (Corfu 80 vs Zakynthos 89).
Active & hiking: Zakynthos scores higher in September (Corfu 66 vs Zakynthos 75).
Family: Zakynthos scores higher in September (Corfu 88 vs Zakynthos 95).
Verdict: which should you pick?
In September, Zakynthos leads across every scored category here — the overall score and each travel type — so on the climate data it is the clearer pick this month. Over the year, Zakynthos carries the higher overall climate score. Your own priority (sun, sea, low rain or sightseeing comfort) still matters, and the month-by-month pages for each destination give you the full picture before you book.