Kefallinia vs Zakynthos: which is sunnier?
🇬🇷 Greece vs 🇬🇷 Greece · 53 km apart · long-term climate normals (NASA POWER, 2001–2020)
Zakynthos is the sunnier overall: about 2,970 hours of sunshine a year to Kefallinia's 2,846. Their Sunshine Scores are within 2 points of each other in every month of the year.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Kefallinia | Zakynthos | |
|---|---|---|
| Sunshine hours / year | 2,846 | 2,970 |
| Sunniest month | July (94/100) | July (95/100) |
| Nov–Feb average score | 48/100 | 48/100 |
| Jun–Aug average score | 93/100 | 94/100 |
| Rain / year | 822 mm | 822 mm |
| Warmest sea | 27°C / 81°F | 28°C / 82°F |
| Peak midday UV | 9 (very high) | 10 (very high) |
Kefallinia vs Zakynthos month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Kefallinia | Zakynthos | Kefallinia | Zakynthos | Kefallinia | Zakynthos | Kefallinia | Zakynthos | |
| January | 37 | 38 | 14° | 14° | 116 | 116 | 17° | 18° |
| February | 40 | 40 | 14° | 14° | 88 | 88 | 16° | 17° |
| March | 48 | 49 | 15° | 15° | 70 | 70 | 17° | 17° |
| April | 74 | 74 | 18° | 18° | 40 | 40 | 17° | 17° |
| May | 91 | 92 | 21° | 21° | 24 | 24 | 19° | 19° |
| June | 93 | 93 | 26° | 26° | 17 | 17 | 24° | 24° |
| July | 94 | 95 | 28° | 29° | 11 | 11 | 26° | 27° |
| August | 93 | 94 | 29° | 29° | 15 | 15 | 27° | 28° |
| September | 83 | 84 | 26° | 26° | 71 | 71 | 26° | 26° |
| October | 77 | 78 | 23° | 23° | 100 | 100 | 24° | 24° |
| November | 67 | 68 | 19° | 19° | 125 | 125 | 22° | 22° |
| December | 46 | 47 | 16° | 16° | 145 | 145 | 18° | 18° |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Kefallinia averages 48/100, Zakynthos 48/100. Daytime highs are similar (16°C vs 16°C). See the winter sun ranking.
- March–May: too close to call — Kefallinia averages 71/100, Zakynthos 72/100. Daytime highs are similar (18°C vs 18°C).
- June–August: too close to call — Kefallinia averages 93/100, Zakynthos 94/100. Daytime highs are similar (28°C vs 28°C).
- September–October: too close to call — Kefallinia averages 80/100, Zakynthos 81/100. Daytime highs are similar (25°C vs 25°C).
Sea temperature
Zakynthos's sea gets warmer: 28°C / 82°F at its peak vs 27°C. Swimmable water (21°C+): Kefallinia about 6 months a year, Zakynthos about 6 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Kefallinia weather by month · Zakynthos weather by month · Best time to visit Greece.
More comparisons: Kefallinia vs Patras · Kefallinia vs Corfu · Kefallinia vs Kalamata · Zakynthos vs Patras · Zakynthos vs Kalamata · all head-to-heads