Türkiye Istanbul Weather in July — Climate Guide
July in Istanbul is Excellent
July is Excellent for Istanbul.
July is full summer + tourist peak. 28°C days + 19°C nights + rare rain. Sea temperature 23°C makes Princes' Islands + Bosphorus swimming possible.
European school holidays at peak — hotel prices at yearly peak through August. Tourist crowds maximum at Sultanahmet + Grand Bazaar.
Travel score
Midsummer + 95°F heat + European tourists peak + Bosphorus prime
July Weather at a Glance
Istanbul in July averages 84°F / 29°C high and 66°F / 19°C low. 11 hours sunshine, 25mm rain, 5 rainy days. Hottest month + European tourists at peak — Topkapi / Hagia Sophia queues 1+ hour. Sunrise 5:35 AM, sunset 8:45 PM — daylight 15h 10m.
July Travel Advice
T-shirt + shorts + SPF 30+ sunscreen + sunglasses + light jacket nightly. Hotel AC essential — verify when booking. Istanbul Jazz Festival (all month, top jazz) + Heybeliada Music Days (mid-July, Princes' Islands classical). Bosphorus night cruise + Princes' Islands ferries peak.
Flying In from Overseas
Asia summer holiday peak — Seoul-Istanbul $1,450-2,300. Third week July to first week August biggest spike.
July Pricing Trends
Peak — Sultanahmet 4-star $190-345/night. Beşiktaş 5-star $415-770.
Istanbul July Weather Stats
Avg High
28°C
Avg Low
19°C
Rainy Days
4
27mm total
Sunshine
11h
Daily avg
Humidity
65%
Warm
UV Index
9
Very high
Wind
13 km/h
Gusts 26
Sea Temp
23°C
Avg water temp
Crowds
Very busy
At attractions
July Sunrise & Sunset
Air Quality
PM2.5
25 μg/m³
PM10
50 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
29°C
Nighttime
18°C
Humidity and wind affect how the actual temperature feels.
Wind
13 km/h
Max gust 26 km/h
Activities Recommended for July
July Travel Pros & Cons
Pros
- Sea swimming possible (23°C)
- Long daylight (15h)
- All outdoor activities at peak
Cons
- Hotel prices yearly peak
- Tourist crowds maximum
- Inland indoor visits hot (Hagia Sophia interior 30°C+)
July Events & Festivals
- European school holidays peak
- Sea swimming season starts
- Hotel rates at peak
Istanbul in July — Full Picture
July is full summer + tourist peak. 28°C days + 19°C nights + rare rain. Sea temperature 23°C makes Princes' Islands + Bosphorus swimming possible.
European school holidays at peak — hotel prices at yearly peak through August. Tourist crowds maximum at Sultanahmet + Grand Bazaar.
Late afternoon thunderstorms possible but rare. The Bosphorus moderates Istanbul's heat — coastal walking pleasant even at midday.
What to Wear & What to Pack
T-shirts + shorts + swimwear. Light layer for evening sea breeze. Sunscreen mandatory.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
16°C
8°C
9.3/mo
Summer (Jun·Jul·Aug)
Current27.3°C
18°C
5/mo
Autumn (Sep·Oct·Nov)
19°C
12.3°C
9.3/mo
Winter (Dec·Jan·Feb)
9°C
3.7°C
12.7/mo
Istanbul Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 8° | 3° | 13d·91mm | 3.5h | 75% | 2 | Quiet | Low season | |
| 9° | 3° | 12d·78mm | 4h | 73% | 3 | Quiet | Low season | |
| 11° | 4° | 11d·68mm | 5h | 71% | 4 | Moderate | Shoulder | |
| April (Best) | 16° | 8° | 9d·46mm | 7h | 70% | 5 | Busy | Peak |
| May (Best) | 21° | 12° | 8d·36mm | 9h | 70% | 7 | Busy | Peak |
| June (Best) | 26° | 16° | 6d·35mm | 10h | 67% | 8 | Very busy | Peak |
| July (Best) | 28° | 19° | 4d·27mm | 11h | 65% | 9 | Very busy | Peak |
| August (Best) | 28° | 19° | 5d·41mm | 10.5h | 67% | 9 | Very busy | Peak |
| September (Best) | 24° | 16° | 6d·50mm | 9h | 67% | 7 | Busy | Shoulder |
| 19° | 12° | 10d·80mm | 6.5h | 71% | 5 | Moderate | Shoulder | |
| 14° | 9° | 12d·96mm | 4.5h | 75% | 3 | Quiet | Low season | |
| 10° | 5° | 13d·116mm | 3.5h | 76% | 2 | Moderate | Shoulder |
View Other Months
Istanbul July Hotel Picks
Frequently Asked Questions
Is July a good time to visit Istanbul?
Istanbul in July is Excellent. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Istanbul in July?
Istanbul July averages a high of 28°C and a low of 19°C.
Does it rain much in Istanbul in July?
Istanbul July averages 27mm of rainfall over about 4 rainy days.
What should I wear in Istanbul in July?
T-shirts + shorts + swimwear. Light layer for evening sea breeze. Sunscreen mandatory.
What time are sunrise and sunset in Istanbul in July?
Istanbul July sunrise is 05:45 and sunset is 20:30, with 14h 45m of daylight.
What's the air quality like in Istanbul in July?
Istanbul July air quality (AQI) averages 65, rated Moderate. PM2.5 averages 25μg/m³.
What activities are recommended in Istanbul in July?
In July, Istanbul is great for Sea swimming Princes' Islands, Bosphorus boat tours, Late-evening Strip walking.
Is July peak season in Istanbul?
Istanbul July crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Istanbul
View Other Months
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.