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www.weatherandclimate.info
The table shows the combined weather forecast in Helsinki 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 Helsinki

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
12.05
Tue
night
04 h
Mostly cloudy +8 753 SE
4 m/s
0.0 +6 +6
12.05
Tue
morn
07 h
Mostly cloudy +8 753 SE
5 m/s
0.0 +6 +7
12.05
Tue
morn
10 h
Mostly cloudy +9 752 SE
6 m/s
0.0 +6 +7
12.05
Tue
day
13 h
Light rain +10 751 E
6 m/s
0.2 +8 +9
12.05
Tue
day
16 h
Light rain +10 750 E
5 m/s
0.4 +8 +8
12.05
Tue
even
19 h
Light rain +9 749 E
2 m/s
0.7 +9 +9
12.05
Tue
even
22 h
Light rain +9 749 E
2 m/s
0.6 +8 +8
13.05
Wen
night
01 h
Light rain +8 748 SE
1 m/s
0.2 +9 +9
13.05
Wen
night
04 h
Partly cloudy +8 748 SE
1 m/s
0.0 +9 +9
13.05
Wen
morn
07 h
Light rain +8 747 E
2 m/s
0.2 +8 +10
13.05
Wen
morn
10 h
Light rain +10 747 E
3 m/s
0.1 +9 +12
13.05
Wen
day
13 h
Light rain +11 746 E
6 m/s
0.6 +9 +11
13.05
Wen
day
16 h
Rain +11 745 E
6 m/s
1.1 +9 +9
13.05
Wen
even
19 h
Rain +10 745 SE
4 m/s
2.6 +8 +8
13.05
Wen
even
22 h
Rain +8 745 SW
3 m/s
4.4 +6 +6
14.05
Thu
night
01 h
Light rain +7 745 SW
5 m/s
0.0 +4 +4
14.05
Thu
night
04 h
Light rain +7 746 SW
5 m/s
0.3 +4 +4
14.05
Thu
morn
07 h
Cloudy +7 748 S
7 m/s
0.0 +3 +3
14.05
Thu
morn
10 h
Mostly cloudy +7 750 S
7 m/s
0.1 +4 +5
14.05
Thu
day
13 h
Light cloudy +9 752 S
5 m/s
0.1 +7 +11
14.05
Thu
day
16 h
Clear +11 753 S
3 m/s
0.0 +10 +13
14.05
Thu
even
19 h
Light cloudy +11 753 SE
2 m/s
0.0 +11 +11
14.05
Thu
even
22 h
Clear +8 754 E
4 m/s
0.0 +6 +6
Tue, 12.05
Tue
Tue
Tue
Tue
Tue
Tue
Tue
Wen
04 h
07 h
10 h
13 h
16 h
19 h
22 h
01 h
Air temperature,°С
+8
+8
+9
+10
+10
+9
+9
+8
Atmospheric pressure
753
753
752
751
750
749
749
748
Wind
SE
4 m/s
SE
5 m/s
SE
6 m/s
E
6 m/s
E
5 m/s
E
2 m/s
E
2 m/s
SE
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.2
0.4
0.7
0.6
0.2
Tef,°C
+6
+6
+6
+8
+8
+9
+8
+9
Tefs,°C
+6
+7
+7
+9
+8
+9
+8
+9
Weather comfort
 
 
 
 
 
 
 
 
Wen
Wen
Wen
Wen
Wen
Wen
Wen
Thu
04 h
07 h
10 h
13 h
16 h
19 h
22 h
01 h
Air temperature,°С
+8
+8
+10
+11
+11
+10
+8
+7
Atmospheric pressure
748
747
747
746
745
745
745
745
Wind
SE
1 m/s
E
2 m/s
E
3 m/s
E
6 m/s
E
6 m/s
SE
4 m/s
SW
3 m/s
SW
5 m/s
Precipitation, mm
0.0
0.2
0.1
0.6
1.1
2.6
4.4
0.0
Tef,°C
+9
+8
+9
+9
+9
+8
+6
+4
Tefs,°C
+9
+10
+12
+11
+9
+8
+6
+4
Weather comfort
 
 
 
 
 
 
 
 
Thu
Thu
Thu
Thu
Thu
Thu
Thu
04 h
07 h
10 h
13 h
16 h
19 h
22 h
Air temperature,°С
+7
+7
+7
+9
+11
+11
+8
Atmospheric pressure
746
748
750
752
753
753
754
Wind
SW
5 m/s
S
7 m/s
S
7 m/s
S
5 m/s
S
3 m/s
SE
2 m/s
E
4 m/s
Precipitation, mm
0.3
0.0
0.1
0.1
0.0
0.0
0.0
Tef,°C
+4
+3
+4
+7
+10
+11
+6
Tefs,°C
+4
+3
+5
+11
+13
+11
+6
Weather comfort
 
 
 
 
 
 
 
 
  • Tue, 12.05
  • Wen, 13.05
  • Thu, 14.05
Location of a geographical point Helsinki (Finland): latitude 60.1750 longitude 24.9444 height above sea level 4 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.