April 21 is statistically one of the best days of the year in Mykonos. With minimal rain risk (7%) and pleasant highs of 18°C, it's ideal for outdoor adventures. Take advantage of the off-peak calm in Mykonos to see the sights without the usual crowds. Note: April 21 is Easter Monday in Mykonos, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Mykonos
Currency
EUR
€ Euro
Language
Greek
Driving
Right side
Connect
Truly the cheapest way to call abroad is...
Safety
High Safety
GPI: 1.838
Mykonos Weather Forecast for April 21
"Mild & Comfortable. Expect average highs of 17.9°C. 7% chance of rain."
What to Wear in Mykonos in April
Based on historical data for April 21, Mykonos typically experiences temperatures between 14°C and 17.9°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (7% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Mykonos
Smart Suitcase
- Light Jacket
- Long Pants
Average High
17.9°C
Daytime Peak
Average Low
14°C
Nighttime Low
Feels Like
17.9°C
🌤️ Feels accurate
Rain Chance
7%
Avg 0.1mm if it rains
Cloud Cover
37%
Overcast
Pressure
1013.4 hPa
Medium volatility
Mykonos Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 19:00
Type I-II
🔴 15 min to burn
Type III-IV
🟡 23 min to burn
Type V-VI
🟢 38 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
12.6°C
Pleasant
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Holiday
Easter Monday
Flight Traffic
Quiet
22/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~10
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Mykonos
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:37
☀️ Noon
13:18
🌇 Sunset
19:59
⏱️ Daylight
13h 22m
Wind Speed
31 km/h
Fresh breeze
Sunshine
11.4 hrs
Direct Sun (Cloud-free)
Humidity
71%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Mykonos
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Mykonos
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Mykonos on April 21 averages 17.9°C with a 7% precipitation probability. Wedding/Outdoor Event Score: 86/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Mykonos Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 28
18.9°C • 5% rain
Score
96
April 27
18.8°C • 3% rain
Score
95
April 26
18.7°C • 4% rain
Score
94
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 21) in other destinations
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📍 Is Mykonos Worth Visiting on April 21?
Planning a trip to Mykonos on April 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 17.9°C with a 7% historical precipitation risk.
🎉 Local Event: The date coincides with Easter Monday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 10 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Greece, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 17.6°C (refreshing tonic). Wave conditions are generally fun waves with heights around 0.69m.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 19.8°C in 2023, while the coldest dropped to 11.9°C in 2019.