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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
09.01
Fri
night
00 h
Rain +12 763 W
5 m/s
0.8 +11 +11
09.01
Fri
night
03 h
Light cloudy +11 763 W
3 m/s
0.1 +10 +10
09.01
Fri
morn
06 h
Light rain +11 763 W
3 m/s
0.1 +10 +10
09.01
Fri
morn
09 h
Partly cloudy +11 764 NW
2 m/s
0.1 +10 +10
09.01
Fri
day
12 h
Mostly cloudy +12 764 NW
4 m/s
0.1 +11 +12
09.01
Fri
day
15 h
Partly cloudy +12 763 NW
4 m/s
0.1 +11 +12
09.01
Fri
even
18 h
Partly cloudy +11 764 NW
3 m/s
0.0 +10 +10
09.01
Fri
even
21 h
Mostly cloudy +10 765 NW
2 m/s
0.0 +9 +9
10.01
Sat
night
00 h
Partly cloudy +9 765 NE
1 m/s
0.0 +9 +9
10.01
Sat
night
03 h
Cloudy +8 765 NE
1 m/s
0.0 +9 +9
10.01
Sat
morn
06 h
Mostly cloudy +8 764 SE
1 m/s
0.0 +8 +8
10.01
Sat
morn
09 h
Partly cloudy +8 765 SE
2 m/s
0.0 +7 +7
10.01
Sat
day
12 h
Partly cloudy +11 765 S
2 m/s
0.0 +11 +13
10.01
Sat
day
15 h
Partly cloudy +12 764 SW
2 m/s
0.0 +12 +13
10.01
Sat
even
18 h
Partly cloudy +10 764 S
2 m/s
0.0 +10 +10
10.01
Sat
even
21 h
Mostly cloudy +10 764 S
2 m/s
0.0 +9 +9
11.01
Sun
night
00 h
Cloudy +10 764 SE
3 m/s
0.0 +9 +9
11.01
Sun
night
03 h
Cloudy +10 763 S
4 m/s
0.0 +9 +9
11.01
Sun
morn
06 h
Light rain +11 762 S
4 m/s
0.1 +9 +9
11.01
Sun
morn
09 h
Light rain +11 762 S
4 m/s
0.4 +9 +9
11.01
Sun
day
12 h
Light rain +12 762 S
5 m/s
0.4 +11 +11
11.01
Sun
day
15 h
Mostly cloudy +13 761 S
5 m/s
0.1 +11 +11
11.01
Sun
even
18 h
Cloudy +12 761 S
5 m/s
0.1 +11 +11
Fri, 09.01
Fri
Fri
Fri
Fri
Fri
Fri
Fri
Fri
00 h
03 h
06 h
09 h
12 h
15 h
18 h
21 h
Air temperature,°С
+12
+11
+11
+11
+12
+12
+11
+10
Atmospheric pressure
763
763
763
764
764
763
764
765
Wind
W
5 m/s
W
3 m/s
W
3 m/s
NW
2 m/s
NW
4 m/s
NW
4 m/s
NW
3 m/s
NW
2 m/s
Precipitation, mm
0.8
0.1
0.1
0.1
0.1
0.1
0.0
0.0
Tef,°C
+11
+10
+10
+10
+11
+11
+10
+9
Tefs,°C
+11
+10
+10
+10
+12
+12
+10
+9
Weather comfort
 
 
 
 
 
 
 
 
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
+9
+8
+8
+8
+11
+12
+10
+10
Atmospheric pressure
765
765
764
765
765
764
764
764
Wind
NE
1 m/s
NE
1 m/s
SE
1 m/s
SE
2 m/s
S
2 m/s
SW
2 m/s
S
2 m/s
S
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+9
+9
+8
+7
+11
+12
+10
+9
Tefs,°C
+9
+9
+8
+7
+13
+13
+10
+9
Weather comfort
 
 
 
 
 
 
 
 
Sun
Sun
Sun
Sun
Sun
Sun
Sun
00 h
03 h
06 h
09 h
12 h
15 h
18 h
Air temperature,°С
+10
+10
+11
+11
+12
+13
+12
Atmospheric pressure
764
763
762
762
762
761
761
Wind
SE
3 m/s
S
4 m/s
S
4 m/s
S
4 m/s
S
5 m/s
S
5 m/s
S
5 m/s
Precipitation, mm
0.0
0.0
0.1
0.4
0.4
0.1
0.1
Tef,°C
+9
+9
+9
+9
+11
+11
+11
Tefs,°C
+9
+9
+9
+9
+11
+11
+11
Weather comfort
 
 
 
 
 
 
 
 
  • Fri, 09.01
  • Sat, 10.01
  • Sun, 11.01
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.