Istanbul · SpringMonth summary
Istanbul weather in May
✅ Good
🌡️ Temperature min / max
55°F – 70°F
🌧 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: Istanbul in May: 70°F and 12.6h of sunshine. Decent, but not the peak.
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
Spring marks the start of the good season in Istanbul. Temperatures rise (21°F) 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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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 39°F | 50°F | 43% | 0.1in | 6.4h | 4.1/10 |
| 🌦️ February | 41°F | 50°F | 35% | 0.1in | 8.0h | 4.6/10 |
| ⛅ March | 43°F | 55°F | 35% | 0.1in | 9.4h | 5.8/10 |
| ⛅ April | 48°F | 63°F | 29% | 0.1in | 11.6h | 7.2/10 |
| 🌤️ May | 55°F | 70°F | 30% | 0.1in | 12.6h | 7.8/10 |
| ☀️ June | 66°F | 79°F | 21% | 0.1in | 13.9h | 9.0/10 |
| ☀️ July | 70°F | 84°F | 12% | 0.0in | 13.7h | 9.3/10 |
| ☀️ August | 72°F | 86°F | 8% | 0.0in | 12.3h | 8.9/10 |
| ☀️ September | 66°F | 79°F | 23% | 0.1in | 11.3h | 8.5/10 |
| 🌤️ October | 57°F | 68°F | 21% | 0.1in | 9.4h | 7.5/10 |
| ⛅ November | 52°F | 61°F | 31% | 0.1in | 7.8h | 7.0/10 |
| 🌦️ December | 45°F | 54°F | 42% | 0.1in | 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 70°F, 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°F
- 🌧 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 70°F, 12.6h of sunshine and 30% rain, conditions are very favourable.
What to do in Istanbul in May?
With 70°F max and 12.6h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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