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The table shows the combined weather forecast in Porto 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 Porto

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
16.04
Thu
night
03 h
Partly cloudy +11 760 NE
1 m/s
0.0 +12 +12
16.04
Thu
morn
06 h
Mostly cloudy +11 760 NE
1 m/s
0.0 +12 +12
16.04
Thu
morn
09 h
Partly cloudy +13 760 NE
1 m/s
0.0 +14 +19
16.04
Thu
day
12 h
Light cloudy +17 760 W
2 m/s
0.0 +17 +29
16.04
Thu
day
15 h
Clear +18 759 W
4 m/s
0.0 +18 +25
16.04
Thu
even
18 h
Light cloudy +16 759 NW
3 m/s
0.0 +16 +17
16.04
Thu
even
21 h
Light cloudy +13 759 NW
2 m/s
0.0 +13 +13
17.04
Fri
night
00 h
Clear +11 759 N
1 m/s
0.0 +12 +12
17.04
Fri
night
03 h
Clear +10 758 NE
1 m/s
0.0 +11 +11
17.04
Fri
morn
06 h
Light cloudy +9 758 NE
1 m/s
0.0 +10 +10
17.04
Fri
morn
09 h
Light cloudy +11 758 NE
1 m/s
0.0 +12 +18
17.04
Fri
day
12 h
Light cloudy +16 758 NW
2 m/s
0.0 +17 +30
17.04
Fri
day
15 h
Light cloudy +18 757 NW
3 m/s
0.0 +18 +26
17.04
Fri
even
18 h
Light cloudy +18 757 NW
3 m/s
0.0 +18 +19
17.04
Fri
even
21 h
Light cloudy +13 757 NW
2 m/s
0.0 +13 +13
18.04
Sat
night
00 h
Partly cloudy +12 757 NE
1 m/s
0.0 +12 +12
18.04
Sat
night
03 h
Partly cloudy +11 756 E
1 m/s
0.0 +12 +12
18.04
Sat
morn
06 h
Light cloudy +11 756 E
1 m/s
0.0 +12 +12
18.04
Sat
morn
09 h
Light cloudy +15 756 NE
1 m/s
0.0 +15 +22
18.04
Sat
day
12 h
Light cloudy +21 756 W
2 m/s
0.0 +20 +32
18.04
Sat
day
15 h
Clear +23 756 W
3 m/s
0.0 +19 +28
18.04
Sat
even
18 h
Clear +21 755 W
3 m/s
0.0 +19 +20
18.04
Sat
even
21 h
Clear +17 755 NW
2 m/s
0.0 +18 +18
Thu, 16.04
Thu
Thu
Thu
Thu
Thu
Thu
Thu
Fri
03 h
06 h
09 h
12 h
15 h
18 h
21 h
00 h
Air temperature,°С
+11
+11
+13
+17
+18
+16
+13
+11
Atmospheric pressure
760
760
760
760
759
759
759
759
Wind
NE
1 m/s
NE
1 m/s
NE
1 m/s
W
2 m/s
W
4 m/s
NW
3 m/s
NW
2 m/s
N
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+12
+12
+14
+17
+18
+16
+13
+12
Tefs,°C
+12
+12
+19
+29
+25
+17
+13
+12
Weather comfort
 
 
 
 
 
 
 
 
Fri
Fri
Fri
Fri
Fri
Fri
Fri
Sat
03 h
06 h
09 h
12 h
15 h
18 h
21 h
00 h
Air temperature,°С
+10
+9
+11
+16
+18
+18
+13
+12
Atmospheric pressure
758
758
758
758
757
757
757
757
Wind
NE
1 m/s
NE
1 m/s
NE
1 m/s
NW
2 m/s
NW
3 m/s
NW
3 m/s
NW
2 m/s
NE
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+11
+10
+12
+17
+18
+18
+13
+12
Tefs,°C
+11
+10
+18
+30
+26
+19
+13
+12
Weather comfort
 
 
 
 
 
 
 
 
Sat
Sat
Sat
Sat
Sat
Sat
Sat
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+11
+11
+15
+21
+23
+21
+17
Atmospheric pressure
756
756
756
756
756
755
755
Wind
E
1 m/s
E
1 m/s
NE
1 m/s
W
2 m/s
W
3 m/s
W
3 m/s
NW
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+12
+12
+15
+20
+19
+19
+18
Tefs,°C
+12
+12
+22
+32
+28
+20
+18
Weather comfort
 
 
 
 
 
 
 
 
  • Thu, 16.04
  • Fri, 17.04
  • Sat, 18.04
Location of a geographical point Porto (Portugal): latitude 41.2322 longitude -8.6789 height above sea level 77 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.