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The table shows the combined weather forecast in Porto for 14 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
18.05
Mon
morn
06 h
Light cloudy +10 757 N
1 m/s
0.0 +11 +11
18.05
Mon
day
12 h
Partly cloudy +16 759 W
3 m/s
0.0 +16 +23
18.05
Mon
even
18 h
Partly cloudy +16 759 W
3 m/s
0.0 +16 +17
19.05
Tue
night
00 h
Cloudy +14 759 S
2 m/s
0.0 +14 +14
19.05
Tue
morn
06 h
Cloudy +14 759 S
3 m/s
0.1 +13 +13
19.05
Tue
day
12 h
Cloudy +16 760 SW
4 m/s
0.2 +16 +17
19.05
Tue
even
18 h
Partly cloudy +18 760 W
2 m/s
0.0 +18 +19
20.05
Wen
night
00 h
Light cloudy +15 761 NE
1 m/s
0.0 +16 +16
20.05
Wen
morn
06 h
Partly cloudy +13 761 E
2 m/s
0.0 +13 +13
20.05
Wen
day
12 h
Clear +20 761 SW
2 m/s
0.0 +20 +39
20.05
Wen
even
18 h
Clear +22 760 NW
3 m/s
0.0 +19 +21
21.05
Thu
night
00 h
Clear +16 759 NE
1 m/s
0.0 +17 +17
21.05
Thu
morn
06 h
Clear +16 759 S
1 m/s
0.0 +17 +17
21.05
Thu
day
12 h
Clear +18 570 SW
2 m/s
0.0 +18 +35
21.05
Thu
even
18 h
Clear +17 522 W
2 m/s
0.0 +17 +19
22.05
Fri
night
00 h
Clear +13 510 E
1 m/s
0.0 +13 +13
22.05
Fri
morn
06 h
Clear +12 506 E
1 m/s
0.0 +12 +12
22.05
Fri
day
12 h
Light cloudy +17 506 SW
2 m/s
0.0 +18 +32
Mon, 18.05
Mon
Mon
Mon
Tue
Tue
Tue
Tue
Wen
06 h
12 h
18 h
00 h
06 h
12 h
18 h
00 h
Air temperature,°С
+10
+16
+16
+14
+14
+16
+18
+15
Atmospheric pressure
757
759
759
759
759
760
760
761
Wind
N
1 m/s
W
3 m/s
W
3 m/s
S
2 m/s
S
3 m/s
SW
4 m/s
W
2 m/s
NE
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.1
0.2
0.0
0.0
Tef,°C
+11
+16
+16
+14
+13
+16
+18
+16
Tefs,°C
+11
+23
+17
+14
+13
+17
+19
+16
Weather comfort
 
 
 
 
 
 
 
 
Wen
Wen
Wen
Thu
Thu
Thu
Thu
Fri
06 h
12 h
18 h
00 h
06 h
12 h
18 h
00 h
Air temperature,°С
+13
+20
+22
+16
+16
+18
+17
+13
Atmospheric pressure
761
761
760
759
759
570
522
510
Wind
E
2 m/s
SW
2 m/s
NW
3 m/s
NE
1 m/s
S
1 m/s
SW
2 m/s
W
2 m/s
E
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+13
+20
+19
+17
+17
+18
+17
+13
Tefs,°C
+13
+39
+21
+17
+17
+35
+19
+13
Weather comfort
 
 
 
 
 
 
 
 
Fri
Fri
06 h
12 h
Air temperature,°С
+12
+17
Atmospheric pressure
506
506
Wind
E
1 m/s
SW
2 m/s
Precipitation, mm
0.0
0.0
Tef,°C
+12
+18
Tefs,°C
+12
+32
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
  • Mon, 18.05
  • Wen, 20.05
  • Fri, 22.05
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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.