Chaniá vs Santorini: which is sunnier?
🇬🇷 Greece vs 🇬🇷 Greece · 154 km apart · long-term climate normals (NASA POWER, 2001–2020)
Santorini is the sunnier overall: about 3,012 hours of sunshine a year to Chaniá's 2,895. Month by month it's balanced: each has the higher Sunshine Score in 1 month, with 10 within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Chaniá | Santorini | |
|---|---|---|
| Sunshine hours / year | 2,895 | 3,012 |
| Sunniest month | July (96/100) | June (96/100) |
| Nov–Feb average score | 52/100 | 55/100 |
| Jun–Aug average score | 95/100 | 96/100 |
| Rain / year | 507 mm | 488 mm |
| Warmest sea | 28°C / 82°F | 26°C / 79°F |
| Peak midday UV | 9 (very high) | 10 (very high) |
Chaniá vs Santorini month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Chaniá | Santorini | Chaniá | Santorini | Chaniá | Santorini | Chaniá | Santorini | |
| January | 39 | 40 | 14° | 14° | 94 | 96 | 17° | 18° |
| February | 40 | 48 | 14° | 15° | 85 | 81 | 16° | 17° |
| March | 59 | 59 | 16° | 16° | 45 | 44 | 17° | 17° |
| April | 76 | 69 | 18° | 17° | 24 | 26 | 18° | 18° |
| May | 93 | 93 | 22° | 21° | 16 | 19 | 19° | 19° |
| June | 95 | 96 | 25° | 25° | 4 | 5 | 24° | 23° |
| July | 96 | 96 | 28° | 27° | 2 | 2 | 27° | 25° |
| August | 95 | 96 | 28° | 27° | 4 | 2 | 28° | 26° |
| September | 93 | 94 | 26° | 25° | 17 | 18 | 26° | 25° |
| October | 87 | 89 | 22° | 22° | 51 | 44 | 24° | 23° |
| November | 76 | 78 | 19° | 19° | 70 | 64 | 21° | 21° |
| December | 52 | 54 | 16° | 16° | 95 | 87 | 19° | 19° |
The sunnier month by month: Jan even · Feb Santorini · Mar even · Apr Chaniá · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: Santorini (average score 55/100 vs 52). Daytime highs are similar (16°C vs 16°C). See the winter sun ranking.
- March–May: too close to call — Chaniá averages 76/100, Santorini 74/100. Daytime highs are similar (19°C vs 18°C).
- June–August: too close to call — Chaniá averages 95/100, Santorini 96/100. Daytime highs are similar (27°C vs 26°C).
- September–October: too close to call — Chaniá averages 90/100, Santorini 92/100. Daytime highs are similar (24°C vs 24°C).
Sea temperature
Chaniá's sea gets warmer: 28°C / 82°F at its peak vs 26°C. Swimmable water (21°C+): Chaniá about 6 months a year, Santorini about 6 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Chaniá weather by month · Santorini weather by month · Best time to visit Greece.
More comparisons: Chaniá vs Heraklion · Chaniá vs Mykonos · Santorini vs Heraklion · Santorini vs Kos · Santorini vs Mykonos · all head-to-heads