Weather Comparison
Side-by-side weather comparison for July
| Metric | Istanbul | Bucharest | Better |
|---|---|---|---|
| Average HighHigher is warmer | 28°C (82°F) | 29°C (84°F)▲ | Bucharest |
| Average LowHigher is milder | 21°C (70°F)▲ | 18°C (64°F) | Istanbul |
| Rain DaysFewer is drier | 4 days▲ | 10 days | Istanbul |
| PrecipitationLess is drier | 20 mm▲ | 79 mm | Istanbul |
| Sunshine HoursMore is sunnier | 14h/day▲ | 13h/day | Istanbul |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 9 | 9 | Tie |
| Wind SpeedCalmer is better | 21 km/h | 13 km/h▲ | Bucharest |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Istanbul edges ahead as the better destination in July. Istanbul offers 14 hours of daily sunshine with only 4 rain days, while Bucharest sees 13 sunshine hours and 10 rain days.
Istanbul sits in the comfortable travel range at 28°C. Bucharest runs hot at 29°C.
For travelers who prioritize dry weather, Istanbul is the stronger choice in July. Istanbul receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Istanbul reaches an average high of 28°C (82°F) and drops to 21°C (70°F) at night during July. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Bucharest averages 29°C (84°F) for the high and 18°C (64°F) for the low, with a daily range of 11°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in July.
Istanbul receives approximately 20 mm of rainfall across 4 rain days during July. Rain is occasional, so a light rain jacket should suffice.
Bucharest sees 79 mm over 10 rain days. That makes Istanbul the drier option by 6 rain days and 59 mm of total precipitation.
Both cities share similar humidity levels at 65%.
Highs of 28°C, lows of 21°C, 4 rain days
Highs of 29°C, lows of 18°C, 10 rain days
Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat. These items are useful in either destination during July.
The table below shows average high temperatures and rain days for every month. July is highlighted for quick reference.
| Month | Istanbul | Bucharest | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 8°C | 13d | 3°C | 7d |
| Feb | 9°C | 12d | 6°C | 6d |
| Mar | 11°C | 11d | 11°C | 8d |
| Apr | 15°C | 8d | 17°C | 9d |
| May | 20°C | 6d | 23°C | 11d |
| Jun | 25°C | 6d | 26°C | 12d |
| Jul | 28°C | 4d | 29°C | 10d |
| Aug | 28°C | 3d | 29°C | 7d |
| Sep | 24°C | 7d | 23°C | 7d |
| Oct | 19°C | 9d | 17°C | 7d |
| Nov | 14°C | 10d | 10°C | 7d |
| Dec | 10°C | 13d | 4°C | 7d |
Istanbul Weather in July
Full forecast, packing tips, and activities
Bucharest Weather in July
Full forecast, packing tips, and activities