Istanbul: Historical Weather Data

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  Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average Temperature  (years charted: 21)
°C 14 5 5 7 12 16 21 23 23 20 16 11 7
°F 58 42 42 46 54 62 70 74 74 69 61 52 46
Average High Temperature  (years charted: 21)
°C 17 7 8 10 15 20 25 27 27 24 19 13 10
°F 64 46 47 51 60 69 78 82 82 76 67 57 50
Average Low Temperature  (years charted: 21)
°C 10 2 2 4 8 12 16 18 19 16 12 8 5
°F 51 37 37 40 47 54 62 66 67 61 55 47 42
Highest Recorded Temperature  (years charted: 21)
°C 37 17 18 25 27 31 37 37 37 32 33 27 19
°F 100 64 66 77 82 89 99 100 99 91 93 82 67
Lowest Recorded Temperature  (years charted: 21)
°C -8 -8 -8 -6 0 3 8 10 8 5 2 -2 -3
°F 16 16 16 20 32 39 48 50 48 41 36 27 25
Average Precipitation  (years charted: 40)
mm 640 93 71 58 43 30 22 17 15 27 53 88 101
in 25.2 3.7 2.8 2.3 1.7 1.2 0.9 0.7 0.6 1.1 2.1 3.5 4.0
Average Wind Speed  (years charted: 18)
km/h 18 16 20 18 18 18 18 20 22 20 16 18 18
mph 11 10 12 11 11 11 11 12 13 12 10 11 11
Average Morning Relative Humidity  (years charted: 21)
% 82 82 81 83 81 84 83 83 84 82 83 81 81
Average Afternoon Relative Humidity  (years charted: 21)
% 61 71 68 65 61 59 55 51 52 53 61 66 71
Source: International Station Meteorological Climate Summary