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Istanbul Climate & Temperature

  • Istanbul, Turkey is at 4058'N, 294'E, 40 m (131 ft). See map.
  • Istanbul has a humid subtropical climate that is mild with no dry season, constantly moist (year-round rainfall). Summers are hot and muggy with thunderstorms. Winters are mild with precipitation from mid-latitude cyclones. Seasonality is moderate. (Kppen-Geiger classification: Cfa).
  • According to the Holdridge life zones system of bioclimatic classification Istanbul is situated in or near the warm temperate dry forest biome.
  • The average annual temperature is 14.1 degrees Celsius (57.4 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 18 °C (32.4°F). This indicates that the continentality type is oceanic, subtype semicontinental. Istanbul Climate Graph
  • In the winter time records indicate temperatures by day reach 9.3°C (48.8°F) on average falling to 3.3°C (38°F) overnight.
  • In spring time temperatures climb reaching 16°C (60.8°F) generally in the afternoon with overnight lows of 7.3°C (45.2°F).
  • During summer average high temperatures are 27°C (80.6°F) and average low temperatures are 17.7°C (63.8°F).
  • Come autumn/ fall temperatures decrease achieving average highs of 19.7°C (67.4°F) during the day and lows of 12.7°C (54.8°F) generally shortly after sunrise.
  • Total annual Precipitation averages 439 mm (17.3 inches) which is equivalent to 439 Litres/m (10.77 Gallons/ft).
  • On average there are 2421 hours of sunshine per year. Visit the sunshine and daylight section to check monthly details including how high in the sky the sun reaches each month.
  • Were you to burrow down through the centre of the Earth from Istanbul you would pop up nearest to the climate station at Tubuai, French Polynesia where you would find a Tropical wet climate.

Istanbul Climate Table

  Climate Variable Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
 
Average Max Temperature °C ( °F) 8 (46) 9 (48) 11 (52) 16 (61) 21 (70) 25 (77) 28 (82) 28 (82) 24 (75) 20 (68) 15 (59) 11 (52) 18 (64)
 
Average Temperature °C ( °F) 6 (42) 6 (42) 7 (45) 12 (53) 17 (62) 21 (69) 23 (73) 24 (74) 20 (68) 17 (62) 12 (54) 8 (46) 14 (57)
 
Average Min Temperature °C ( °F) 3 (37) 2 (36) 3 (37) 7 (45) 12 (54) 16 (61) 18 (64) 19 (66) 16 (61) 13 (55) 9 (48) 5 (41) 10 (50)
 
Average Precipitation mm (in) 27 (1) 27 (1) 34 (1) 46 (2) 78 (3) 64 (3) 28 (1) 24 (1) 25 (1) 30 (1) 29 (1) 27 (1) 439 (17)
Number of Wet Days (probability of rain on a day %) 12 (39) 11 (39) 10 (32) 8 (27) 6 (19) 5 (17) 3 (10) 4 (13) 6 (20) 7 (23) 11 (37) 14 (45) 97 (27)
Average Sunlight Hours/ Day 2h 36' 3h 34' 4h 30' 6h 18' 8h 36' 10h 36' 11h 36' 10h 54' 8h 12' 5h 54' 3h 42' 2h 48' 6h 37'
Average Daylight Hours/ Day 9h 35' 10h 34' 11h 52' 13h 16' 14h 27' 15h 03' 14h 47' 13h 46' 12h 25' 11h 02' 9h 51' 9h 16' 12h 00'
Percentage of Sunny (Cloudy) Daylight Hours 28 (72) 34 (66) 39 (61) 48 (52) 60 (40) 71 (29) 79 (21) 80 (20) 67 (33) 54 (46) 38 (62) 31 (69) 55 (45)
Sun altitude at solar noon on the 21st day (). 29.1 38.4 49.3 60.9 69.2 72.5 69.4 61.1 49.7 38.2 29 25.6 49.3

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