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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
22.11
Sat
night
00 h
Clear +6 766 NE
2 m/s
0.0 +5 +5
22.11
Sat
night
03 h
Clear +5 766 E
2 m/s
0.0 +4 +4
22.11
Sat
morn
06 h
Clear +4 766 E
2 m/s
0.0 +3 +3
22.11
Sat
morn
09 h
Light cloudy +5 767 E
2 m/s
0.0 +4 +5
22.11
Sat
day
12 h
Light cloudy +11 766 S
1 m/s
0.0 +12 +16
22.11
Sat
day
15 h
Light cloudy +12 765 W
1 m/s
0.0 +12 +14
22.11
Sat
even
18 h
Light cloudy +10 765 SW
1 m/s
0.0 +10 +10
22.11
Sat
even
21 h
Mostly cloudy +10 765 SE
2 m/s
0.0 +9 +9
23.11
Sun
night
00 h
Cloudy +9 765 SE
2 m/s
0.0 +9 +9
23.11
Sun
night
03 h
Light rain +10 763 S
3 m/s
0.2 +9 +9
23.11
Sun
morn
06 h
Rain +10 763 S
2 m/s
0.8 +9 +9
23.11
Sun
morn
09 h
Light rain +10 763 S
2 m/s
0.5 +10 +10
23.11
Sun
day
12 h
Light rain +14 762 S
4 m/s
0.2 +13 +14
23.11
Sun
day
15 h
Rain +14 760 SW
4 m/s
1.0 +13 +13
23.11
Sun
even
18 h
Rain +13 760 SW
4 m/s
0.9 +12 +12
23.11
Sun
even
21 h
Rain +13 759 SW
5 m/s
1.1 +12 +12
24.11
Mon
night
00 h
Rain +13 758 SW
4 m/s
3.2 +12 +12
24.11
Mon
night
03 h
Rain +13 757 W
4 m/s
3.5 +12 +12
24.11
Mon
morn
06 h
Rain +13 756 SW
5 m/s
4.5 +12 +12
24.11
Mon
morn
09 h
Rain +15 755 W
6 m/s
4.2 +13 +13
24.11
Mon
day
12 h
Rain +15 754 W
6 m/s
2.6 +14 +14
24.11
Mon
day
15 h
Rain +15 754 NW
5 m/s
3.6 +14 +15
24.11
Mon
even
18 h
Light rain +13 755 NW
4 m/s
0.6 +12 +12
Sat, 22.11
Sat
Sat
Sat
Sat
Sat
Sat
Sat
Sat
00 h
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+6
+5
+4
+5
+11
+12
+10
+10
Atmospheric pressure
766
766
766
767
766
765
765
765
Wind
NE
2 m/s
E
2 m/s
E
2 m/s
E
2 m/s
S
1 m/s
W
1 m/s
SW
1 m/s
SE
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+5
+4
+3
+4
+12
+12
+10
+9
Tefs,°C
+5
+4
+3
+5
+16
+14
+10
+9
Weather comfort
 
 
 
 
 
 
 
 
Sun
Sun
Sun
Sun
Sun
Sun
Sun
Sun
00 h
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+9
+10
+10
+10
+14
+14
+13
+13
Atmospheric pressure
765
763
763
763
762
760
760
759
Wind
SE
2 m/s
S
3 m/s
S
2 m/s
S
2 m/s
S
4 m/s
SW
4 m/s
SW
4 m/s
SW
5 m/s
Precipitation, mm
0.0
0.2
0.8
0.5
0.2
1.0
0.9
1.1
Tef,°C
+9
+9
+9
+10
+13
+13
+12
+12
Tefs,°C
+9
+9
+9
+10
+14
+13
+12
+12
Weather comfort
 
 
 
 
 
 
 
 
Mon
Mon
Mon
Mon
Mon
Mon
Mon
00 h
03 h
06 h
09 h
12 h
15 h
18 h
Air temperature,°С
+13
+13
+13
+15
+15
+15
+13
Atmospheric pressure
758
757
756
755
754
754
755
Wind
SW
4 m/s
W
4 m/s
SW
5 m/s
W
6 m/s
W
6 m/s
NW
5 m/s
NW
4 m/s
Precipitation, mm
3.2
3.5
4.5
4.2
2.6
3.6
0.6
Tef,°C
+12
+12
+12
+13
+14
+14
+12
Tefs,°C
+12
+12
+12
+13
+14
+15
+12
Weather comfort
 
 
 
 
 
 
 
 
  • Sat, 22.11
  • Sun, 23.11
  • Mon, 24.11
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.