WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Mariupol' 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Mariupol'

Ukraine

Long range weather outlook for Mariupol' includes 14 day forecast summary:

For Mariupol' in the coming two weeks the average daytime maximum temperature will be around 6°C, with a high for the two weeks of 9°C expected on the afternoon of Thursday 11th. The mean minimum temperature will be 3°C, dipping to its lowest on the morning of Sunday 14th at 0°C. The fortnight ahead will remain predominantly dry. On the whole winds are likely to be moderate. The forecast suggests the strongest wind will be on the evening of Sunday 7th, coming from a easterly direction, and reaching around 26mph.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 05
Dec
20:00

ENE
ENE

16 / 18 mph 41 / 32°F 82% 1024 mb
Low level cloud: 35%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ENE
ENE

15 / 19 mph 39 / 31°F 86% 1024 mb
Low level cloud: 70%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 06
Dec
02:00

NE
NE

15 / 23 mph 39 / 30°F 85% 1024 mb
Low level cloud: 83%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NE
NE

16 / 27 mph 37 / 28°F 87% 1023 mb
Low level cloud: 71%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

16 / 25 mph 39 / 30°F 87% 1024 mb
Low level cloud: 55%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ENE
ENE

16 / 24 mph 43 / 35°F 81% 1024 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

17 / 25 mph 45 / 38°F 79% 1023 mb
Low level cloud: 63%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

21 / 30 mph 44 / 36°F 77% 1024 mb
Low level cloud: 84%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

E
E

23 / 39 mph 42 / 32°F 79% 1024 mb
Low level cloud: 99%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

20 / 38 mph 40 / 31°F 85% 1024 mb
Low level cloud: 56%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 07
Dec
02:00

E
E

23 / 42 mph 40 / 29°F 81% 1024 mb
Low level cloud: 96%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

21 / 45 mph 38 / 28°F 79% 1023 mb
Low level cloud: 50%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

26 / 35 mph 40 / 29°F 83% 1023 mb
Low level cloud: 57%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

26 / 30 mph 43 / 33°F 75% 1023 mb
Low level cloud: 35%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

E
E

27 / 31 mph 46 / 37°F 66% 1021 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

28 / 32 mph 45 / 35°F 65% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 22%
Most Significant Cloud Type: high
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

28 / 32 mph 43 / 32°F 69% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

28 / 32 mph 41 / 30°F 73% 1021 mb
Low level cloud: 10%
Mid level cloud: 0%
High level cloud: 58%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 08
Dec
02:00

ENE
ENE

27 / 40 mph 37 / 25°F 76% 1022 mb
Low level cloud: 43%
Mid level cloud: 0%
High level cloud: 29%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

27 / 39 mph 36 / 24°F 79% 1021 mb
Low level cloud: 86%
Mid level cloud: 0%
High level cloud: 48%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

E
E

27 / 36 mph 37 / 25°F 80% 1022 mb
Low level cloud: 100%
Mid level cloud: 46%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

25 / 30 mph 39 / 28°F 80% 1023 mb
Low level cloud: 98%
Mid level cloud: 46%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

E
E

24 / 33 mph 40 / 30°F 78% 1022 mb
Low level cloud: 86%
Mid level cloud: 33%
High level cloud: 2%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

E
E

23 / 37 mph 40 / 30°F 79% 1023 mb
Low level cloud: 86%
Mid level cloud: 25%
High level cloud: 41%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

E
E

22 / 36 mph 39 / 28°F 80% 1024 mb
Low level cloud: 96%
Mid level cloud: 29%
High level cloud: 35%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

20 / 35 mph 38 / 28°F 81% 1025 mb
Low level cloud: 95%
Mid level cloud: 26%
High level cloud: 52%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 09
Dec
02:00

E
E

18 / 26 mph 40 / 30°F 81% 1024 mb
Low level cloud: 92%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

15 / 23 mph 39 / 30°F 82% 1025 mb
Low level cloud: 78%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

13 / 18 mph 40 / 32°F 83% 1026 mb
Low level cloud: 62%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

13 / 16 mph 42 / 35°F 81% 1025 mb
Low level cloud: 74%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

10 / 12 mph 43 / 38°F 80% 1025 mb
Low level cloud: 50%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

E
E

9 / 12 mph 43 / 38°F 83% 1024 mb
Low level cloud: 16%
Mid level cloud: 19%
High level cloud: 30%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

8 / 11 mph 42 / 37°F 88% 1024 mb
Low level cloud: 18%
Mid level cloud: 27%
High level cloud: 100%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

7 / 11 mph 41 / 37°F 90% 1024 mb
Low level cloud: 16%
Mid level cloud: 36%
High level cloud: 77%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 10
Dec
02:00

E
E

6 / 9 mph 41 / 37°F 91% 1023 mb
Low level cloud: 27%
Mid level cloud: 31%
High level cloud: 10%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

5 / 8 mph 40 / 37°F 92% 1022 mb
Low level cloud: 35%
Mid level cloud: 41%
High level cloud: 33%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

6 / 8 mph 42 / 38°F 92% 1022 mb
Low level cloud: 43%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

5 / 5 mph 44 / 42°F 86% 1022 mb
Low level cloud: 55%
Mid level cloud: 25%
High level cloud: 16%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

E
E

1 / 1 mph 46 / 46°F 82% 1021 mb
Low level cloud: 85%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNE
NNE

1 / 1 mph 46 / 46°F 84% 1021 mb
Low level cloud: 79%
Mid level cloud: 8%
High level cloud: 10%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNE
NNE

4 / 6 mph 45 / 43°F 86% 1021 mb
Low level cloud: 26%
Mid level cloud: 8%
High level cloud: 10%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NE
NE

1 / 2 mph 43 / 43°F 89% 1022 mb
Low level cloud: 34%
Mid level cloud: 13%
High level cloud: 7%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 11
Dec
02:00

WNW
WNW

4 / 6 mph 42 / 40°F 89% 1022 mb
Low level cloud: 8%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NW
NW

5 / 9 mph 41 / 38°F 88% 1021 mb
Low level cloud: 4%
Mid level cloud: 26%
High level cloud: 5%
Most Significant Cloud Type: medium
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

WSW
WSW

3 / 4 mph 42 / 41°F 84% 1022 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SW
SW

5 / 7 mph 45 / 42°F 77% 1021 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

WSW
WSW

6 / 8 mph 47 / 44°F 75% 1020 mb
Low level cloud: 0%
Mid level cloud: 62%
High level cloud: 0%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

WSW
WSW

7 / 10 mph 47 / 43°F 77% 1020 mb
Low level cloud: 0%
Mid level cloud: 98%
High level cloud: 0%
Most Significant Cloud Type: medium
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

WSW
WSW

9 / 15 mph 45 / 40°F 78% 1019 mb
Low level cloud: 0%
Mid level cloud: 65%
High level cloud: 54%
Most Significant Cloud Type: medium
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

WSW
WSW

10 / 19 mph 43 / 38°F 77% 1019 mb
Low level cloud: 1%
Mid level cloud: 100%
High level cloud: 33%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 12
Dec
02:00

SW
SW

10 / 18 mph 46 / 41°F 95% 1018 mb
Low level cloud: 77%
Mid level cloud: 29%
High level cloud: 14%
Most Significant Cloud Type: low
88%
0.0 In
08:00

SW
SW

8 / 11 mph 46 / 42°F 93% 1012 mb
Low level cloud: 30%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: low
44%
0.0 In
14:00

NE
NE

6 / 7 mph 42 / 38°F 81% 1025 mb
Low level cloud: 89%
Mid level cloud: 64%
High level cloud: 4%
Most Significant Cloud Type: low
100%
0.0 In
20:00

NE
NE

4 / 4 mph 46 / 45°F 75% 1023 mb
Low level cloud: 75%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Sat 13
Dec
02:00

W
W

20 / 40 mph 39 / 29°F 77% 1012 mb
Low level cloud: 77%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
86%
0.0 In
08:00

NW
NW

18 / 30 mph 39 / 30°F 74% 1012 mb
Low level cloud: 59%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
69%
0.0 In
14:00

NW
NW

14 / 18 mph 40 / 32°F 55% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: medium
6%
0.0 In
20:00

WNW
WNW

21 / 25 mph 34 / 22°F 78% 1012 mb
Low level cloud: 60%
Mid level cloud: 86%
High level cloud: 0%
Most Significant Cloud Type: low
90%
0.0 In
Sun 14
Dec
02:00

NW
NW

8 / 9 mph 36 / 30°F 76% 1027 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 5%
Most Significant Cloud Type: medium
2%
0.0 In
08:00

NW
NW

21 / 29 mph 28 / 15°F 75% 1017 mb
Low level cloud: 39%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.0 In
14:00

NNE
NNE

2 / 2 mph 44 / 44°F 53% 1029 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 33%
Most Significant Cloud Type: medium
22%
0.0 In
20:00

NW
NW

17 / 21 mph 31 / 19°F 55% 1021 mb
Low level cloud: 16%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
Mon 15
Dec
02:00

SE
SE

7 / 11 mph 35 / 29°F 69% 1029 mb
Low level cloud: 0%
Mid level cloud: 39%
High level cloud: 15%
Most Significant Cloud Type: medium
39%
0.0 In
08:00

NNW
NNW

14 / 17 mph 26 / 14°F 67% 1026 mb
Low level cloud: 1%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
14:00

SE
SE

9 / 10 mph 44 / 39°F 61% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
20:00

N
N

4 / 6 mph 32 / 28°F 70% 1030 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
0.0 In
Tue 16
Dec
02:00

SE
SE

9 / 13 mph 40 / 34°F 76% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
0.0 In
08:00

WNW
WNW

3 / 3 mph 34 / 32°F 65% 1030 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In
14:00

SSE
SSE

7 / 8 mph 49 / 46°F 70% 1022 mb
Low level cloud: 19%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: low
22%
0.0 In
20:00

WNW
WNW

2 / 3 mph 37 / 37°F 64% 1029 mb
Low level cloud: 0%
Mid level cloud: 56%
High level cloud: 100%
Most Significant Cloud Type: medium
59%
0.0 In
Wed 17
Dec
02:00

S
S

8 / 14 mph 44 / 40°F 95% 1020 mb
Low level cloud: 21%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: low
38%
0.0 In
08:00

NNW
NNW

5 / 6 mph 35 / 31°F 61% 1028 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
26%
0.0 In
14:00

SSW
SSW

10 / 12 mph 51 / 48°F 92% 1019 mb
Low level cloud: 21%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
22%
0.0 In
20:00

NNE
NNE

5 / 6 mph 41 / 38°F 62% 1029 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Thu 18
Dec
02:00

SW
SW

9 / 19 mph 46 / 41°F 94% 1019 mb
Low level cloud: 30%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
08:00

E
E

5 / 7 mph 38 / 34°F 67% 1028 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 4%
Most Significant Cloud Type: medium
9%
0.0 In
14:00

SSW
SSW

13 / 17 mph 52 / 47°F 83% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: medium
5%
0.0 In
20:00

E
E

11 / 13 mph 38 / 31°F 66% 1026 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
Fri 19
Dec
02:00

SSW
SSW

7 / 11 mph 49 / 46°F 93% 1017 mb
Low level cloud: 1%
Mid level cloud: 2%
High level cloud: 18%
Most Significant Cloud Type: medium
6%
0.0 In
08:00

E
E

14 / 21 mph 36 / 27°F 65% 1025 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
14:00

SSE
SSE

9 / 11 mph 51 / 48°F 67% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
20:00

E
E

17 / 22 mph 38 / 29°F 81% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 20
Dec
02:00

S
S

17 / 35 mph 43 / 35°F 83% 1007 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 8%
Most Significant Cloud Type: medium
7%
0.0 In
08:00

E
E

16 / 23 mph 36 / 26°F 88% 1026 mb
Low level cloud: 26%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.0 In
14:00

WSW
WSW

6 / 7 mph 49 / 47°F 62% 1013 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 17%
Most Significant Cloud Type: medium
12%
0.1 In
20:00

ENE
ENE

10 / 12 mph 39 / 33°F 91% 1025 mb
Low level cloud: 42%
Mid level cloud: 48%
High level cloud: 30%
Most Significant Cloud Type: low
62%
0.0 In

Other Locations Near to Mariupol'

The day label given represents the local day relative to the local time for the location you are looking at.
(More Info)

Day

This time is corrected for local time zones and where possible for daylight saving times.
(More Info)

Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
(More Info)

Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
(More Info)

Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
(More Info)

Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
(More Info)

Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
(More Info)

Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
(More Info)

Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
(More Info)

Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
(More Info)

Pressure