Istanbul · SpringMonth summary
Istanbul weather in May
✅ Good
🌡️ Temperature min / max
13°C – 21°C
🌧 Rainy days
30% of days
☀️ Sunshine
12.6h per day on average
🌊 🌊 Season
Spring
⭐ ⭐ Weather score
7.8/10
📅 📅 Best month
July (9.3/10)
Quick decision
Should you visit Istanbul in May?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: May is a good time to visit Istanbul. July remains slightly better (+1.5 pts).
By trip type
Istanbul in May by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in May
🎯 Ideal conditions for families — pleasant weather and outdoor activities accessible Spring marks the start of the good season in Istanbul. Temperatures rise (21°C) and tourists have not yet arrived en masse. Expect rain on 30% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (9.3/10) remains theoretically better.
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All months for Istanbul
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 4°C | 10°C | 43% | 3.4 | 6.4h | 4.1/10 |
| 🌦️ February | 5°C | 10°C | 35% | 2.5 | 8.0h | 4.6/10 |
| ⛅ March | 6°C | 13°C | 35% | 2.3 | 9.4h | 5.8/10 |
| ⛅ April | 9°C | 17°C | 29% | 1.7 | 11.6h | 7.2/10 |
| 🌤️ May | 13°C | 21°C | 30% | 1.9 | 12.6h | 7.8/10 |
| ☀️ June | 19°C | 26°C | 21% | 1.3 | 13.9h | 9.0/10 |
| ☀️ July | 21°C | 29°C | 12% | 0.7 | 13.7h | 9.3/10 |
| ☀️ August | 22°C | 30°C | 8% | 0.5 | 12.3h | 8.9/10 |
| ☀️ September | 19°C | 26°C | 23% | 1.5 | 11.3h | 8.5/10 |
| 🌤️ October | 14°C | 20°C | 21% | 1.8 | 9.4h | 7.5/10 |
| ⛅ November | 11°C | 16°C | 31% | 2.9 | 7.8h | 7.0/10 |
| 🌦️ December | 7°C | 12°C | 42% | 3.1 | 6.8h | 4.4/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In May, Istanbul averages 21°C, 30% rainy days and 12.6h of sunshine per day. Overall weather score: 7.8/10.
See methodology →
Comparison
May vs July (best month)
The best month is July (score 9.3/10). Difference:
- 🌡️ Max temperature : +8°C
- 🌧 Rainy days : -18%
- ☀️ Sunshine : +1.1h/day
FAQ
FAQ — Istanbul in May
Is May a good time to visit Istanbul?
May is an excellent time to visit Istanbul (score 7.8/10). With 21°C, 12.6h of sunshine and 30% rain, conditions are very favourable.
What to do in Istanbul in May?
With 21°C max and 12.6h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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