WEATHER IN Portland
The table shows the combined weather forecast in Portland for a week 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 Portland
| Date | Time | Weather type | Air temperature, °C | Atmospheric pressure | Wind | Precipitation, mm | Tef, °C | Tefs, °C | Weather comfort |
| 21.12 Sat |
day 12 h |
 |
-4 | 756 | N 6 m/s |
0.0 | -10 | -10 | |
| 21.12 Sat |
even 18 h |
 |
-3 | 756 | NW 8 m/s |
0.0 | -9 | -9 | |
| 22.12 Sun |
night 00 h |
 |
-6 | 760 | NW 7 m/s |
0.0 | -13 | -13 | |
| 22.12 Sun |
morn 06 h |
|
-8 | 762 | NW 5 m/s |
0.0 | -15 | -15 | |
| 22.12 Sun |
day 12 h |
 |
-10 | 766 | NW 6 m/s |
0.0 | -18 | -18 | |
| 22.12 Sun |
even 18 h |
 |
-8 | 768 | NW 6 m/s |
0.0 | -15 | -14 | |
| 23.12 Mon |
night 00 h |
|
-9 | 773 | N 6 m/s |
0.0 | -17 | -17 | |
| 23.12 Mon |
morn 06 h |
|
-10 | 774 | NW 4 m/s |
0.0 | -16 | -16 | |
| 23.12 Mon |
day 12 h |
 |
-8 | 776 | NW 2 m/s |
0.0 | -12 | -12 | |
| 23.12 Mon |
even 18 h |
 |
-4 | 775 | S 3 m/s |
0.0 | -8 | -6 | |
| 24.12 Tue |
night 00 h |
|
-3 | 774 | SW 4 m/s |
0.0 | -7 | -7 | |
| 24.12 Tue |
morn 06 h |
 |
-3 | 769 | W 5 m/s |
0.4 | -8 | -8 | |
| 24.12 Tue |
day 12 h |
 |
-3 | 770 | W 3 m/s |
0.8 | -7 | -7 | |
| 24.12 Tue |
even 18 h |
 |
-1 | 768 | N 3 m/s |
0.3 | -4 | -4 | |
| 25.12 Wen |
night 00 h |
|
-2 | 769 | N 5 m/s |
0.3 | -7 | -7 | |
| 25.12 Wen |
morn 06 h |
|
-1 | 769 | N 4 m/s |
0.0 | -5 | -5 | |
| 25.12 Wen |
morn 06 h |
|
-1 | 769 | N 4 m/s |
0.0 | -5 | -5 | |
| 25.12 Wen |
day 12 h |
|
-4 | 769 | N 5 m/s |
0.1 | -9 | -9 | |
| 25.12 Wen |
even 18 h |
|
-0 | 769 | N 4 m/s |
0.0 | -4 | -3 | |
| 26.12 Thu |
night 00 h |
|
0 | 770 | N 3 m/s |
0.0 | -3 | -3 | |
| 26.12 Thu |
morn 06 h |
|
-3 | 773 | N 3 m/s |
0.0 | -6 | -6 | |
| 26.12 Thu |
day 12 h |
|
-2 | 772 | N 2 m/s |
0.0 | -5 | -5 | |
| 26.12 Thu |
even 18 h |
|
+1 | 771 | N 4 m/s |
0.0 | -3 | -2 | |
| 27.12 Fri |
night 00 h |
|
-1 | 772 | N 2 m/s |
0.0 | -3 | -3 | |
| 27.12 Fri |
morn 06 h |
|
-2 | 772 | N 3 m/s |
0.0 | -5 | -5 | |
| 27.12 Fri |
day 12 h |
|
-4 | 774 | N 3 m/s |
0.0 | -8 | -8 | |
| 27.12 Fri |
even 18 h |
|
+2 | 773 | N 2 m/s |
0.0 | 0 | +2 | |
| 28.12 Sat |
night 00 h |
|
+1 | 773 | NE 3 m/s |
0.0 | -2 | -2 | |
| 28.12 Sat |
morn 06 h |
|
+1 | 774 | N 3 m/s |
0.0 | -1 | -1 |
Sat, 21.12
Sat
Sat
Sun
Sun
Sun
Sun
Mon
Mon
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-4
-3
-6
-8
-10
-8
-9
-10
Atmospheric pressure
756
756
760
762
766
768
773
774
Wind
N
6 m/s
6 m/s
NW
8 m/s
8 m/s
NW
7 m/s
7 m/s
NW
5 m/s
5 m/s
NW
6 m/s
6 m/s
NW
6 m/s
6 m/s
N
6 m/s
6 m/s
NW
4 m/s
4 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-10
-9
-13
-15
-18
-15
-17
-16
Tefs,°C
-10
-9
-13
-15
-18
-14
-17
-16
Weather comfort
Mon
Mon
Tue
Tue
Tue
Tue
Wen
Wen
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-8
-4
-3
-3
-3
-1
-2
-1
Atmospheric pressure
776
775
774
769
770
768
769
769
Wind
NW
2 m/s
2 m/s
S
3 m/s
3 m/s
SW
4 m/s
4 m/s
W
5 m/s
5 m/s
W
3 m/s
3 m/s
N
3 m/s
3 m/s
N
5 m/s
5 m/s
N
4 m/s
4 m/s
Precipitation, mm
0.0
0.0
0.0
0.4
0.8
0.3
0.3
0.0
Tef,°C
-12
-8
-7
-8
-7
-4
-7
-5
Tefs,°C
-12
-6
-7
-8
-7
-4
-7
-5
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
-1
-4
-0
0
-3
-2
+1
-1
Atmospheric pressure
769
769
769
770
773
772
771
772
Wind
N
4 m/s
4 m/s
N
5 m/s
5 m/s
N
4 m/s
4 m/s
N
3 m/s
3 m/s
N
3 m/s
3 m/s
N
2 m/s
2 m/s
N
4 m/s
4 m/s
N
2 m/s
2 m/s
Precipitation, mm
0.0
0.1
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-5
-9
-4
-3
-6
-5
-3
-3
Tefs,°C
-5
-9
-3
-3
-6
-5
-2
-3
Weather comfort
Fri
Fri
Fri
Sat
Sat
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-2
-4
+2
+1
+1
Atmospheric pressure
772
774
773
773
774
Wind
N
3 m/s
3 m/s
N
3 m/s
3 m/s
N
2 m/s
2 m/s
NE
3 m/s
3 m/s
N
3 m/s
3 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
Tef,°C
-5
-8
0
-2
-1
Tefs,°C
-5
-8
+2
-2
-1
Weather comfort
- Sat, 21.12
- Mon, 23.12
- Wen, 25.12
- Fri, 27.12
Location of a geographical point Portland (Maine, USA):
latitude 43.6497 longitude -70.3003 height above sea level 14 m.
Navigation:
- Weather forecast Portland for 3 days
- Weather forecast Portland for a week
- Weather forecast Portland for 14 days
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.