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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
12.01
Mon
night
00 h
Light rain +12 759 S
5 m/s
0.1 +11 +11
12.01
Mon
night
03 h
Light rain +12 758 S
6 m/s
0.7 +10 +10
12.01
Mon
morn
06 h
Light rain +12 757 S
6 m/s
0.6 +10 +10
12.01
Mon
morn
09 h
Cloudy +12 757 S
7 m/s
0.0 +10 +10
12.01
Mon
day
12 h
Mostly cloudy +13 756 S
7 m/s
0.0 +11 +11
12.01
Mon
day
15 h
Cloudy +14 754 S
7 m/s
0.0 +12 +12
12.01
Mon
even
18 h
Cloudy +13 753 S
7 m/s
0.0 +11 +11
12.01
Mon
even
21 h
Light rain +13 752 S
7 m/s
0.1 +10 +10
13.01
Tue
night
00 h
Rain +12 751 S
7 m/s
2.0 +10 +10
13.01
Tue
night
03 h
Rain +11 749 S
7 m/s
3.7 +9 +9
13.01
Tue
morn
06 h
Heavy rain +11 748 S
6 m/s
6.2 +9 +9
13.01
Tue
morn
09 h
Heavy rain +11 749 S
5 m/s
7.1 +9 +9
13.01
Tue
day
12 h
Rain +12 750 S
4 m/s
1.7 +11 +12
13.01
Tue
day
15 h
Rain +13 750 SW
4 m/s
1.6 +12 +13
13.01
Tue
even
18 h
Rain +11 752 W
2 m/s
1.5 +11 +11
13.01
Tue
even
21 h
Light rain +10 753 W
2 m/s
0.5 +10 +10
14.01
Wen
night
00 h
Partly cloudy +9 755 N
1 m/s
0.1 +9 +9
14.01
Wen
night
03 h
Mostly cloudy +9 756 NE
1 m/s
0.0 +9 +9
14.01
Wen
morn
06 h
Mostly cloudy +8 757 E
1 m/s
0.0 +9 +9
14.01
Wen
morn
09 h
Cloudy +8 759 E
1 m/s
0.0 +9 +9
14.01
Wen
day
12 h
Light cloudy +11 760 NW
1 m/s
0.0 +12 +16
14.01
Wen
day
15 h
Light cloudy +13 759 NW
2 m/s
0.1 +12 +14
14.01
Wen
even
18 h
Clear +10 760 NW
2 m/s
0.0 +10 +10
Mon, 12.01
Mon
Mon
Mon
Mon
Mon
Mon
Mon
Mon
00 h
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+12
+12
+12
+12
+13
+14
+13
+13
Atmospheric pressure
759
758
757
757
756
754
753
752
Wind
S
5 m/s
S
6 m/s
S
6 m/s
S
7 m/s
S
7 m/s
S
7 m/s
S
7 m/s
S
7 m/s
Precipitation, mm
0.1
0.7
0.6
0.0
0.0
0.0
0.0
0.1
Tef,°C
+11
+10
+10
+10
+11
+12
+11
+10
Tefs,°C
+11
+10
+10
+10
+11
+12
+11
+10
Weather comfort
 
 
 
 
 
 
 
 
Tue
Tue
Tue
Tue
Tue
Tue
Tue
Tue
00 h
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+12
+11
+11
+11
+12
+13
+11
+10
Atmospheric pressure
751
749
748
749
750
750
752
753
Wind
S
7 m/s
S
7 m/s
S
6 m/s
S
5 m/s
S
4 m/s
SW
4 m/s
W
2 m/s
W
2 m/s
Precipitation, mm
2.0
3.7
6.2
7.1
1.7
1.6
1.5
0.5
Tef,°C
+10
+9
+9
+9
+11
+12
+11
+10
Tefs,°C
+10
+9
+9
+9
+12
+13
+11
+10
Weather comfort
 
 
 
 
 
 
 
 
Wen
Wen
Wen
Wen
Wen
Wen
Wen
00 h
03 h
06 h
09 h
12 h
15 h
18 h
Air temperature,°С
+9
+9
+8
+8
+11
+13
+10
Atmospheric pressure
755
756
757
759
760
759
760
Wind
N
1 m/s
NE
1 m/s
E
1 m/s
E
1 m/s
NW
1 m/s
NW
2 m/s
NW
2 m/s
Precipitation, mm
0.1
0.0
0.0
0.0
0.0
0.1
0.0
Tef,°C
+9
+9
+9
+9
+12
+12
+10
Tefs,°C
+9
+9
+9
+9
+16
+14
+10
Weather comfort
 
 
 
 
 
 
 
 
  • Mon, 12.01
  • Tue, 13.01
  • Wen, 14.01
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.