Athens vs Mykonos: which is sunnier?
🇬🇷 Greece vs 🇬🇷 Greece · 136 km apart · long-term climate normals (NASA POWER, 2001–2020)
Athens and Mykonos are virtually tied for annual sunshine — about 2,907 vs 2,897 hours a year. Athens has the higher Sunshine Score in 4 of 12 months, Mykonos in 3 (5 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Athens | Mykonos | |
|---|---|---|
| Sunshine hours / year | 2,907 | 2,897 |
| Sunniest month | August (95/100) | July (96/100) |
| Nov–Feb average score | 44/100 | 44/100 |
| Jun–Aug average score | 91/100 | 95/100 |
| Rain / year | 500 mm | 523 mm |
| Warmest sea | 27°C / 81°F | 26°C / 79°F |
| Peak midday UV | 10 (very high) | 9 (very high) |
Athens vs Mykonos month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Athens | Mykonos | Athens | Mykonos | Athens | Mykonos | Athens | Mykonos | |
| January | 28 | 32 | 12° | 13° | 66 | 100 | 16° | 16° |
| February | 36 | 34 | 13° | 13° | 58 | 84 | 15° | 16° |
| March | 58 | 51 | 16° | 15° | 53 | 48 | 15° | 16° |
| April | 83 | 61 | 19° | 16° | 30 | 29 | 17° | 17° |
| May | 92 | 85 | 25° | 19° | 21 | 21 | 18° | 19° |
| June | 93 | 94 | 30° | 23° | 20 | 9 | 23° | 22° |
| July | 85 | 96 | 33° | 24° | 11 | 3 | 26° | 25° |
| August | 95 | 96 | 32° | 25° | 8 | 2 | 27° | 26° |
| September | 91 | 92 | 28° | 23° | 29 | 20 | 25° | 25° |
| October | 87 | 88 | 23° | 20° | 49 | 46 | 23° | 23° |
| November | 70 | 63 | 18° | 17° | 69 | 68 | 20° | 20° |
| December | 40 | 46 | 14° | 15° | 86 | 93 | 17° | 17° |
The sunnier month by month: Jan Mykonos · Feb even · Mar Athens · Apr Athens · May Athens · Jun even · Jul Mykonos · Aug even · Sep even · Oct even · Nov Athens · Dec Mykonos.
When to pick which
- November–February: too close to call — Athens averages 44/100, Mykonos 44/100. Daytime highs are similar (14°C vs 15°C). See the winter sun ranking.
- March–May: Athens (average score 78/100 vs 66). Athens is the warmer, around 20°C daytime highs vs 17°C.
- June–August: Mykonos (average score 95/100 vs 91). Athens is the warmer, around 32°C daytime highs vs 24°C.
- September–October: too close to call — Athens averages 89/100, Mykonos 90/100. Athens is the warmer, around 26°C daytime highs vs 22°C.
Sea temperature
Athens's sea gets warmer: 27°C / 81°F at its peak vs 26°C. Swimmable water (21°C+): Athens about 5 months a year, Mykonos about 5 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Athens weather by month · Mykonos weather by month · Best time to visit Greece.
More comparisons: Athens vs Kalamata · Athens vs Skiathos · Mykonos vs Chaniá · Mykonos vs Samos · Mykonos vs Mytilene · all head-to-heads