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).
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.
Mykonos Weather 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 to Wear in Mykonos by Season
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.