Weather in Istanbul :
Istanbul has a temperate climate. But Istanbul is located within a climatic transition zone between oceanic and dry subtropical climates. In summer the weather in Istanbul is hot and humid, the temperature between June and September averaging 28 °C (82 °F). During winter it is cold, wet and often snowy, averaging 5 °C (41 °F). The humidity of the city is constantly high which makes the air feel much harsher than the actual temperatures. The city being located in the second most humid region of the country, has an average annual humidity of 79%. Average annual precipitation is 693 mm (27 in). Summer is the driest season, although there is no real summer drought as rain does occur all year round, and so the climate is not mediterranean. Snowfall is quite common between the months of December and March, snowing for a week or two, but it can be heavy once it snows. The city is also quite windy, having an average wind speed of 17 km/h (11 mph).
Istanbul has a temperate climate. But Istanbul is located within a climatic transition zone between oceanic and dry subtropical climates. In summer the weather in Istanbul is hot and humid, the temperature between June and September averaging 28 °C (82 °F). During winter it is cold, wet and often snowy, averaging 5 °C (41 °F). The humidity of the city is constantly high which makes the air feel much harsher than the actual temperatures. The city being located in the second most humid region of the country, has an average annual humidity of 79%. Average annual precipitation is 693 mm (27 in). Summer is the driest season, although there is no real summer drought as rain does occur all year round, and so the climate is not mediterranean. Snowfall is quite common between the months of December and March, snowing for a week or two, but it can be heavy once it snows. The city is also quite windy, having an average wind speed of 17 km/h (11 mph).
| Weather data for Istanbul | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average high °C (°F) | 8.7 (48) |
9.1 (48) |
11.2 (52) |
16.5 (62) |
21.4 (71) |
26.0 (79) |
28.4 (83) |
28.5 (83) |
25.0 (77) |
20.1 (68) |
15.3 (60) |
11.1 (52) |
18.4 (65) |
| Daily mean °C (°F) | 5.8 (42) |
5.9 (43) |
7.55 (46) |
12.1 (54) |
16.7 (62) |
21.0 (70) |
23.4 (74) |
23.6 (74) |
20.2 (68) |
16.0 (61) |
11.9 (53) |
8.2 (47) |
14.3 (58) |
| Average low °C (°F) | 2.9 (37) |
2.8 (37) |
3.9 (39) |
7.7 (46) |
12.0 (54) |
16.0 (61) |
18.5 (65) |
18.7 (66) |
15.5 (60) |
12.0 (54) |
8.5 (47) |
5.3 (42) |
10.3 (51) |
| Precipitation mm (inches) | 87.3 (3.44) |
71.3 (2.81) |
63.2 (2.49) |
44.9 (1.77) |
32.6 (1.28) |
25.3 (1) |
23.7 (0.93) |
23.6 (0.93) |
44.3 (1.74) |
70.7 (2.78) |
84.7 (3.33) |
106.7 (4.2) |
678.3 (26.7) |
| Avg. precipitation days | 17.7 | 15.3 | 13.6 | 10.3 | 7.8 | 5.3 | 3.6 | 4.0 | 6.1 | 10.3 | 12.9 | 16.9 | 123.8 |
| Source: World Meteorological Organization (UN) | |||||||||||||
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