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www.weatherandclimate.eu
The table shows the combined weather forecast Istanbul for three days ahead, automatically compiled according to several independent sources. The time is local. The atmospheric pressure in mm of mercury - at the level of the city (station).
The indicators of Tef (effective temperature), Tefs (effective sun temperature) and verbal characteristics of weather comfort are given (see explanations below).

Weather in Istanbul

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
30.12
Mon
night
03 h
Mostly cloudy +8 767 N
6 m/s
0.0 +5 +5
30.12
Mon
morn
06 h
Cloudy +7 767 N
7 m/s
0.0 +4 +4
30.12
Mon
morn
09 h
Cloudy +7 767 N
6 m/s
0.0 +4 +4
30.12
Mon
day
12 h
Cloudy +8 768 N
6 m/s
0.0 +5 +5
30.12
Mon
day
15 h
Cloudy +8 767 N
6 m/s
0.0 +6 +6
30.12
Mon
even
18 h
Partly cloudy +7 768 N
6 m/s
0.0 +4 +4
30.12
Mon
even
21 h
Light cloudy +7 768 N
4 m/s
0.0 +5 +5
31.12
Tue
night
00 h
Partly cloudy +7 769 N
3 m/s
0.0 +5 +5
31.12
Tue
night
03 h
Partly cloudy +7 769 N
3 m/s
0.0 +5 +5
31.12
Tue
morn
06 h
Partly cloudy +6 769 N
3 m/s
0.0 +5 +5
31.12
Tue
morn
09 h
Light cloudy +7 770 NE
2 m/s
0.0 +6 +6
31.12
Tue
day
12 h
Light cloudy +9 771 E
2 m/s
0.0 +8 +11
31.12
Tue
day
15 h
Clear +10 770 E
2 m/s
0.0 +10 +13
31.12
Tue
even
18 h
Clear +9 770 NE
2 m/s
0.0 +8 +8
31.12
Tue
even
21 h
Clear +8 771 NE
2 m/s
0.0 +8 +8
01.01
Wen
night
00 h
Clear +7 771 NE
2 m/s
0.0 +6 +6
01.01
Wen
night
03 h
Clear +7 771 NE
2 m/s
0.0 +6 +6
01.01
Wen
morn
06 h
Clear +7 771 NE
1 m/s
0.0 +7 +7
01.01
Wen
morn
09 h
Clear +7 771 E
1 m/s
0.0 +8 +8
01.01
Wen
day
12 h
Clear +9 771 S
1 m/s
0.0 +10 +14
01.01
Wen
day
15 h
Clear +10 770 SW
1 m/s
0.0 +11 +14
01.01
Wen
even
18 h
Clear +9 769 SW
1 m/s
0.0 +10 +10
01.01
Wen
even
21 h
Clear +9 769 SW
1 m/s
0.0 +9 +9
Mon, 30.12
Mon
Mon
Mon
Mon
Mon
Mon
Mon
Tue
03 h
06 h
09 h
12 h
15 h
18 h
21 h
00 h
Air temperature,°С
+8
+7
+7
+8
+8
+7
+7
+7
Atmospheric pressure
767
767
767
768
767
768
768
769
Wind
N
6 m/s
N
7 m/s
N
6 m/s
N
6 m/s
N
6 m/s
N
6 m/s
N
4 m/s
N
3 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+5
+4
+4
+5
+6
+4
+5
+5
Tefs,°C
+5
+4
+4
+5
+6
+4
+5
+5
Weather comfort
 
 
 
 
 
 
 
 
Tue
Tue
Tue
Tue
Tue
Tue
Tue
Wen
03 h
06 h
09 h
12 h
15 h
18 h
21 h
00 h
Air temperature,°С
+7
+6
+7
+9
+10
+9
+8
+7
Atmospheric pressure
769
769
770
771
770
770
771
771
Wind
N
3 m/s
N
3 m/s
NE
2 m/s
E
2 m/s
E
2 m/s
NE
2 m/s
NE
2 m/s
NE
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+5
+5
+6
+8
+10
+8
+8
+6
Tefs,°C
+5
+5
+6
+11
+13
+8
+8
+6
Weather comfort
 
 
 
 
 
 
 
 
Wen
Wen
Wen
Wen
Wen
Wen
Wen
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+7
+7
+7
+9
+10
+9
+9
Atmospheric pressure
771
771
771
771
770
769
769
Wind
NE
2 m/s
NE
1 m/s
E
1 m/s
S
1 m/s
SW
1 m/s
SW
1 m/s
SW
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+6
+7
+8
+10
+11
+10
+9
Tefs,°C
+6
+7
+8
+14
+14
+10
+9
Weather comfort
 
 
 
 
 
 
 
 
  • Mon, 30.12
  • Tue, 31.12
  • Wen, 01.01
Location of a geographical point Istanbul (Turkey): latitude 40.97 longitude 28.82 height above sea level 37 m.
Navigation:
Notes:
Tef - Effective temperature - the temperature felt by a seasonally dressed person in the shade. The calculation takes into account the influence of humidity, wind speed and atmospheric pressure on the human heat perception.
Tefs - Effective sun temperature - the temperature that a person feels, adjusted for solar radiation. Depends on the amount of cloud cover and the height of the sun above the horizon. At night and in cloudy weather the correction is zero.
Weather comfort - a verbal characteristic that characterizes the favorability or unfavorability of forecast meteorological conditions for a seasonally dressed person. Both relative characteristics are used: warm, cool, cold, very cold, showing how much the expected Tef will be higher or lower than the norm, and absolute ones: the risk of sunstroke, the risk of overheating, hot, very hot, stuffy, very stuffy, comfort, the risk of colds, the risk of frostbite that occur when the Tef, Tefs, air temperature or a combination of certain criteria are reached.