Mykonos Weather
A month-by-month look at temperature, rainfall and what to pack in Mykonos. The annual average is 21°C high / 15°C low — hottest in August (Peak Peak / Meltemi Strongest) (30°C) and coldest in January (Off-Season — 80%+ Closed) (9°C).
Mykonos Weather at a Glance
As of 2026A quick summary of Mykonos's year-round climate and the best time to visit.
- Annual average
- 21° / 15°
- Best time to visit
- June (Pre-Peak / Best Climate), September (Shoulder Best #2 / Meltemi Calms), May (Shoulder Best / Full Season Opens)
- Hottest month
- August (Peak Peak / Meltemi Strongest) (30°C)
- Coldest month
- January (Off-Season — 80%+ Closed) (9°C)
- Wettest month
- December (Off-Season Deep / Christmas Closed) (95mm)
- Driest month
- July (Peak / Meltemi Winds Strengthen) (1mm)
As of 2026, Mykonos's weather averages 21°C high / 15°C low across the year, and the best time to visit for stable temperatures, rainfall and crowds is June (Pre-Peak / Best Climate), September (Shoulder Best #2 / Meltemi Calms), May (Shoulder Best / Full Season Opens). The hottest month is August (Peak Peak / Meltemi Strongest) (30°C), the coldest is January (Off-Season — 80%+ Closed) (9°C), and the wettest is December (Off-Season Deep / Christmas Closed) (95mm).
When is the best time to visit Mykonos?
Pre-peak with the year's best climate — 27°C/19°F day with low humidity + sea warming to 21°C ideal for swim. Mykonos Pride mid-June is the canonical LGBT festival event (Mediterranean's biggest with parade through Mykonos Town + beach club parties at Paradise + Super Paradise). Hotels jump 50% from May as European school holidays end + summer demand peaks. Pre-book 2-3 months ahead for top venues. Meltemi winds start whispering but rarely problematic. This is the strongest month if you want full peak-season energy without August chaos.
Shoulder season best #2 — the absolute sweet-spot month alongside May (some argue September is even better). Climate is ideal (27°C/20°F day + sea 24°C still warmest of year from August thermal lag) with Meltemi calming dramatically + all venues fully operational + 30% cheaper than August + 20-30% less crowded. Cavo Paradiso closing parties late September are canonical (David Guetta finale is a Mykonos event). European school year restart drops family tourists, leaving more honeymoon couples + LGBT + DJ-focused travelers. For first-time Mykonos visitors who can only pick one month, September is the strongest recommendation.
Shoulder season best #1 — the canonical sweet-spot month for Mykonos. Climate is ideal (23°C/73°F day, 16°C/61°F night, sea 18°C swimmable), all hotels + restaurants + beach clubs are fully operational, and pricing is 30-40% cheaper than July-August peak with zero Meltemi winds. Cavo Paradiso opens late May for the year's first superclub parties. The trade-off is sea 18°C still cool for prolonged swim (best for short dips). For honeymoon couples or first-time Mykonos visitors who want all the venues open without peak chaos, May is the strongest recommendation alongside September.
What is Mykonos weather like month by month?
Tap any month for a detailed guide with what to wear, sunrise/sunset and air quality.
| Month | High/Low | Rain | Rainy days | Crowds | |
|---|---|---|---|---|---|
| January (Off-Season — 80%+ Closed) | 14° / 9° | 80mm | 11 | Quiet | Details → |
| February (Off-Season Continues — 80%+ Closed) | 14° / 9° | 65mm | 9 | Quiet | Details → |
| March (Pre-Season / Easter Approaches) | 16° / 10° | 55mm | 8 | Quiet | Details → |
| April (Shoulder Start / Easter Opens Island) | 19° / 12° | 30mm | 5 | Moderate | Details → |
| May (Shoulder Best / Full Season Opens) | 23° / 16° | 15mm | 3 | Moderate | Details → |
| June (Pre-Peak / Best Climate) | 27° / 19° | 5mm | 1 | Busy | Details → |
| July (Peak / Meltemi Winds Strengthen) | 29° / 22° | 1mm | 0 | Very busy | Details → |
| August (Peak Peak / Meltemi Strongest) | 30° / 22° | 1mm | 0 | Very busy | Details → |
| September (Shoulder Best #2 / Meltemi Calms) | 27° / 20° | 15mm | 2 | Busy | Details → |
| October (Late Shoulder / Season Winds Down) | 23° / 17° | 50mm | 6 | Moderate | Details → |
| November (Off-Season Starts / 80%+ Closed) | 19° / 14° | 75mm | 9 | Quiet | Details → |
| December (Off-Season Deep / Christmas Closed) | 16° / 11° | 95mm | 12 | Quiet | Details → |
What should you wear in Mykonos?
Mild Mediterranean spring. Light sweater + light jacket for evenings. T-shirt + light layers during day. Brave swimmers can try the sea (16°C cold but possible).
Hot dry windy Mediterranean peak summer. Light breathable + swimwear + wind jacket for Meltemi 40-60 km/h gusts. Sunscreen SPF 50+ + hat + sunglasses mandatory (UV 11 extreme).
Mild Mediterranean autumn. Light layers + swimwear (sea 22°C still warm). Light jacket for evenings + occasional rain shower.
Same as January — sweater + waterproof + closed shoes. Wind chill significant with Cycladic winter gusts up to 50 km/h. Beach gear pointless.
Mykonos Weather FAQ
What is the best time to visit Mykonos? +
For weather, June (Pre-Peak / Best Climate), September (Shoulder Best #2 / Meltemi Calms), May (Shoulder Best / Full Season Opens) are the most comfortable months. Highs sit around 27°C with relatively stable rainfall and crowds.
What are the hottest and coldest months in Mykonos? +
The hottest month is August (Peak Peak / Meltemi Strongest) with an average high of 30°C, and the coldest is January (Off-Season — 80%+ Closed) with an average low of 9°C. The annual average is 21°C high / 15°C low.
When does it rain most in Mykonos? +
The wettest month is December (Off-Season Deep / Christmas Closed) (95mm over about 12 rainy days) and the driest is July (Peak / Meltemi Winds Strengthen) (1mm). Total annual rainfall is roughly 487mm.
What should I pack for Mykonos? +
Spring (Mar–May) averages 19/13°C — Mild Mediterranean spring. Light sweater + light jacket for evenings. T-shirt + light layers during day. Brave swimmers can try the sea (16°C cold but possible). Summer (Jun–Aug) averages 29/21°C — Hot dry windy Mediterranean peak summer. Light breathable + swimwear + wind jacket for Meltemi 40-60 km/h gusts. Sunscreen SPF 50+ + hat + sunglasses mandatory (UV 11 extreme). Autumn (Sep–Nov) averages 23/17°C — Mild Mediterranean autumn. Light layers + swimwear (sea 22°C still warm). Light jacket for evenings + occasional rain shower. Winter (Dec–Feb) averages 15/10°C — Same as January — sweater + waterproof + closed shoes. Wind chill significant with Cycladic winter gusts up to 50 km/h. Beach gear pointless.
What is the weather in Mykonos this month (June (Pre-Peak / Best Climate))? +
June (Pre-Peak / Best Climate) averages 27°C high / 19°C low with 5mm rainfall over about 1 rainy days. Crowds are busy and prices are high.
Keep Planning Your Mykonos Trip
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.