Mykonos
Greece · Europe
The best time to visit Mykonos is June, July, August, and September. In summer, daytime highs average 29°C (84°F), with peaks around 34°C (93°F); in winter, nights average 10°C (50°F), dropping to around 4°C (39°F) on the coldest. During the best travel months, the sun shines up to 12 hours per day — ideal for beach and outdoor activities.
Mykonos – What you should know
Mykonos, the most famous Cycladic island, has one of Greece's driest summer climates: from May to October barely a drop of rain falls, the sun shines 10–13 hours daily, and the sea rises to 24–26°C (75–79°F). The Meltemi wind sweeps the island daily from the north-north-west in July and August — it pleasantly cools the heat and turns the white windmills into an icon.
The Meltemi can create high swells at exposed beaches. Those who want calm bays should choose the southern beaches (Ornos, Psarou), which are sheltered from the wind. The best travel month is September: the high-season clientele has departed, the sea is still at its annual maximum (26°C (79°F)), and accommodation prices drop significantly.
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, ↑ warmestØ day↑ warmest | 14° (57°)18° (64°) | 14° (57°)18° (64°) | 16° (61°)20° (68°) | 19° (66°)24° (75°) | 23° (73°)29° (84°) | 28° (82°)32° (90°) | 29° (84°)34° (93°) | 29° (84°)33° (91°) | 27° (81°)31° (88°) | 23° (73°)27° (81°) | 19° (66°)23° (73°) | 16° (61°)20° (68°) |
Ø night, ↓ coldestØ night↓ coldest | 10° (50°)4° (39°) | 10° (50°)5° (41°) | 11° (52°)6° (43°) | 14° (57°)9° (48°) | 17° (63°)13° (55°) | 21° (70°)17° (63°) | 24° (75°)21° (70°) | 24° (75°)21° (70°) | 22° (72°)17° (63°) | 18° (64°)14° (57°) | 15° (59°)10° (50°) | 12° (54°)6° (43°) |
☀️Sunshine | 5h UV 4 | 6h UV 6 | 8h UV 7 | 10h UV 8 | 10h UV 9 | 12h UV 9 | 12h UV 9 | 11h UV 9 | 9h UV 8 | 8h UV 6 | 6h UV 5 | 5h UV 4 |
🌊Water Temp | 16° (61°) | 16° (61°) | 16° (61°) | 17° (63°) | 20° (68°) | 23° (73°) | 25° (77°) | 26° (79°) | 25° (77°) | 23° (73°) | 20° (68°) | 17° (63°) |
🌧Rain Days | 4d51mm (2.0") | 3d29mm (1.1") | 2d16mm (0.6") | 1d8mm (0.3") | 0d3mm (0.1") | 0d1mm (<0.1") | 0d0mm (<0.1") | 0d1mm (<0.1") | 0d3mm (0.1") | 1d8mm (0.3") | 2d23mm (0.9") | 3d29mm (1.1") |
Best travel timeØ = average · ↑ warmest day · ↓ coldest nightClimate data 2005–2025 · Source: ERA5 + station data
Travel Tips
From April to August, UV levels in Mykonos reach 9 — very high on the WHO scale. High-SPF sunscreen and shade around midday are essential.
May offers great weather in Mykonos with fewer tourists and lower prices — ideal for those who want to avoid the peak season crowds.
Events & Festivals
August
- XLSIOR Festival· varies (late August, 6 days)
Europe's biggest LGBTQ+ summer festival draws around 30,000 visitors from all over the world to the island every year. Day parties at beach clubs, sundowners overlooking the Aegean and night events until sunrise — spread across Mykonos' best-known clubs.
Frequently Asked Questions
- When is the best time to visit Mykonos?
- The best time to visit Mykonos is June, July, August, and September. These months offer the most favourable combination of sunshine, temperatures, and low rainfall.
- How warm does it get in Mykonos?
- In summer, daytime highs in Mykonos average 29°C (84°F), with peaks around 34°C (93°F); in winter, nights average 10°C (50°F), dropping to around 4°C (39°F) on the coldest.
- How much rain does Mykonos get?
- Mykonos has a relatively even rainfall pattern with an average of 1 rain day per month. The driest months are June, July, and August.
- How warm is the water in Mykonos?
- Water temperature in Mykonos ranges from 16°C (61°F) (February) to 26°C (79°F) (August). During the best travel months (June, July, August, and September), the water is most pleasant for swimming.
Best Travel Time by Vacation Type
🏖️
Beach Holiday
Warm, sunny, little rain
JunJulAug
🏙️
City Trip
Pleasantly mild, not too hot
MaySepOct
