July 20 is statistically one of the best days of the year in Istanbul. With minimal rain risk (2%) and pleasant highs of 29°C, it's ideal for outdoor adventures. As it's peak season for Istanbul, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Istanbul
Currency
TRY
₺ Turkish lira
Language
Turkish
Driving
Right side
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Safety
Travel Precautions
GPI: 2.785
Istanbul Weather Forecast for July 20
"Warm & Sunny. Expect average highs of 29.3°C. 2% chance of rain."
What to Wear in Istanbul in July
Based on historical data for July 20, Istanbul typically experiences temperatures between 21.4°C and 29.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (2% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Istanbul
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
29.3°C
Daytime Peak
Average Low
21.4°C
Nighttime Low
Feels Like
32.8°C
🔥 Feels warmer
Rain Chance
2%
Avg 0.1mm if it rains
Cloud Cover
14%
Mainly clear
Pressure
1011.8 hPa
Low volatility
Istanbul Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 91% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
05:00 - 10:00
16:00 - 20:00
Type I-II
🔴 11 min to burn
Type III-IV
🟡 17 min to burn
Type V-VI
🟢 28 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
22.5°C
Humid/Sticky
Heat Index
32.8°C
Feels hotter
😐 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Turkey
Flight Traffic
High
99/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~1,262
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Istanbul
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:49
☀️ Noon
13:11
🌇 Sunset
20:33
⏱️ Daylight
14h 43m
Wind Speed
22.8 km/h
Moderate wind
Sunshine
13.5 hrs
Direct Sun (Cloud-free)
Humidity
67%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Istanbul
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Istanbul
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Istanbul on July 20 averages 29.3°C with a 2% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Istanbul Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (July 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Istanbul Worth Visiting on July 20?
Planning a trip to Istanbul on July 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.3°C with a 2% historical precipitation risk.
✈️ Travel Logistics: Approximately 1,262 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Turkey, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 25.8°C (tropical bath). Wave conditions are generally lake-like with heights around 0.27m.
📊 Historical Extremes: The hottest July 20 recorded in the last 30 years saw temperatures hit 35.1°C in 2023, while the coldest dropped to 19.7°C in 2017.