WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Mardy 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Mardy

Monmouthshire, United Kingdom

Long range weather outlook for Mardy includes 14 day forecast summary:

Over the next 14 days the Mardy forecast suggests the average daytime maximum temperature will be around 17°C, with a high for the two weeks of 21°C expected on the afternoon of Sunday 2nd. The mean minimum temperature will be 7°C, dipping to its lowest on the morning of Tuesday 28th at 3°C. The coming 14 days will have most days seeing a little rain. Current predictions suggest Sunday 26th will have the most precipitation with an accumulation of around 7.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 24
May
18:00

SW
SW

6 / 7 mph 59 / 57°F 75% 1018 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SW
SW

3 / 6 mph 45 / 43°F 89% 1019 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 25
May
00:00

WSW
WSW

2 / 3 mph 40 / 40°F 88% 1020 mb
Low level cloud: 11%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

0 / 1 mph 38 / 38°F 85% 1019 mb
Low level cloud: 15%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

2 / 2 mph 48 / 47°F 83% 1018 mb
Low level cloud: 2%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

6 / 7 mph 59 / 56°F 77% 1018 mb
Low level cloud: 53%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

9 / 10 mph 64 / 61°F 65% 1016 mb
Low level cloud: 57%
Mid level cloud: 0%
High level cloud: 27%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

8 / 9 mph 63 / 61°F 70% 1014 mb
Low level cloud: 30%
Mid level cloud: 25%
High level cloud: 74%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

8 / 10 mph 58 / 55°F 81% 1014 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

2 / 3 mph 50 / 50°F 93% 1013 mb
Low level cloud: 60%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 26
May
00:00

ESE
ESE

4 / 6 mph 50 / 49°F 99% 1011 mb
Low level cloud: 99%
Mid level cloud: 91%
High level cloud: 14%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

SSE
SSE

5 / 7 mph 50 / 48°F 99% 1010 mb
Low level cloud: 99%
Mid level cloud: 79%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

SSE
SSE

4 / 4 mph 52 / 51°F 99% 1011 mb
Low level cloud: 97%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

6 / 8 mph 59 / 58°F 86% 1010 mb
Low level cloud: 76%
Mid level cloud: 60%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

14 / 19 mph 64 / 62°F 77% 1010 mb
Low level cloud: 51%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

SW
SW

17 / 20 mph 63 / 62°F 73% 1010 mb
Low level cloud: 24%
Mid level cloud: 8%
High level cloud: 2%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

15 / 17 mph 58 / 53°F 84% 1011 mb
Low level cloud: 22%
Mid level cloud: 10%
High level cloud: 100%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

11 / 19 mph 48 / 43°F 94% 1012 mb
Low level cloud: 57%
Mid level cloud: 7%
High level cloud: 3%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 27
May
00:00

WSW
WSW

13 / 17 mph 52 / 47°F 82% 1012 mb
Low level cloud: 95%
Mid level cloud: 11%
High level cloud: 4%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

9 / 16 mph 47 / 42°F 91% 1013 mb
Low level cloud: 66%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

8 / 10 mph 50 / 46°F 87% 1014 mb
Low level cloud: 29%
Mid level cloud: 15%
High level cloud: 9%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

13 / 15 mph 56 / 52°F 63% 1014 mb
Low level cloud: 26%
Mid level cloud: 29%
High level cloud: 18%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

13 / 16 mph 59 / 55°F 64% 1015 mb
Low level cloud: 48%
Mid level cloud: 31%
High level cloud: 21%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

13 / 16 mph 59 / 55°F 62% 1014 mb
Low level cloud: 31%
Mid level cloud: 28%
High level cloud: 10%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

10 / 12 mph 56 / 52°F 75% 1015 mb
Low level cloud: 2%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

4 / 8 mph 43 / 40°F 90% 1017 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 28
May
00:00

WSW
WSW

3 / 6 mph 41 / 39°F 90% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 47%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

2 / 5 mph 38 / 37°F 90% 1017 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

2 / 3 mph 49 / 49°F 86% 1017 mb
Low level cloud: 1%
Mid level cloud: 79%
High level cloud: 0%
Most Significant Cloud Type: medium
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

6 / 6 mph 59 / 56°F 74% 1016 mb
Low level cloud: 26%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

4 / 5 mph 56 / 54°F 82% 1016 mb
Low level cloud: 36%
Mid level cloud: 71%
High level cloud: 89%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

5 / 6 mph 54 / 52°F 94% 1016 mb
Low level cloud: 85%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

4 / 6 mph 54 / 53°F 97% 1016 mb
Low level cloud: 86%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

4 / 6 mph 54 / 53°F 99% 1017 mb
Low level cloud: 91%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 29
May
00:00

S
S

5 / 6 mph 56 / 55°F 99% 1017 mb
Low level cloud: 91%
Mid level cloud: 46%
High level cloud: 79%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

5 / 7 mph 54 / 54°F 99% 1016 mb
Low level cloud: 94%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

5 / 8 mph 54 / 52°F 99% 1015 mb
Low level cloud: 94%
Mid level cloud: 98%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

6 / 9 mph 56 / 55°F 98% 1015 mb
Low level cloud: 91%
Mid level cloud: 45%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

SW
SW

8 / 10 mph 59 / 57°F 97% 1015 mb
Low level cloud: 92%
Mid level cloud: 44%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

10 / 12 mph 60 / 60°F 95% 1015 mb
Low level cloud: 85%
Mid level cloud: 44%
High level cloud: 58%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

9 / 11 mph 59 / 58°F 96% 1014 mb
Low level cloud: 90%
Mid level cloud: 85%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

10 / 14 mph 57 / 54°F 97% 1013 mb
Low level cloud: 96%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 30
May
00:00

SW
SW

12 / 17 mph 56 / 53°F 97% 1011 mb
Low level cloud: 98%
Mid level cloud: 68%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

13 / 18 mph 56 / 53°F 97% 1010 mb
Low level cloud: 87%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

6 / 9 mph 54 / 50°F 88% 1011 mb
Low level cloud: 48%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

13 / 15 mph 60 / 56°F 75% 1012 mb
Low level cloud: 46%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

16 / 18 mph 64 / 63°F 67% 1013 mb
Low level cloud: 76%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

16 / 19 mph 64 / 62°F 68% 1014 mb
Low level cloud: 67%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

13 / 15 mph 61 / 60°F 78% 1015 mb
Low level cloud: 3%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

5 / 11 mph 49 / 46°F 91% 1017 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 31
May
00:00

S
S

6 / 13 mph 50 / 47°F 97% 1007 mb
Low level cloud: 45%
Mid level cloud: 25%
High level cloud: 12%
Most Significant Cloud Type: low
100%
0.0 In
06:00

S
S

2 / 3 mph 54 / 54°F 91% 1003 mb
Low level cloud: 63%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
70%
0.0 In
12:00

W
W

9 / 19 mph 63 / 63°F 76% 1009 mb
Low level cloud: 54%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
70%
0.0 In
18:00

N
N

14 / 30 mph 62 / 62°F 87% 1017 mb
Low level cloud: 30%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.0 In
Sat 01
Jun
00:00

WNW
WNW

8 / 17 mph 43 / 38°F 84% 1013 mb
Low level cloud: 10%
Mid level cloud: 4%
High level cloud: 52%
Most Significant Cloud Type: low
17%
0.0 In
06:00

NNW
NNW

4 / 9 mph 52 / 51°F 88% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
12:00

NW
NW

8 / 16 mph 60 / 60°F 72% 1024 mb
Low level cloud: 89%
Mid level cloud: 28%
High level cloud: 14%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NW
NW

7 / 14 mph 62 / 62°F 77% 1023 mb
Low level cloud: 13%
Mid level cloud: 19%
High level cloud: 100%
Most Significant Cloud Type: low
31%
0.0 In
Sun 02
Jun
00:00

W
W

4 / 8 mph 45 / 43°F 92% 1024 mb
Low level cloud: 45%
Mid level cloud: 46%
High level cloud: 17%
Most Significant Cloud Type: low
63%
0.0 In
06:00

NNW
NNW

2 / 4 mph 55 / 56°F 81% 1023 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 68%
Most Significant Cloud Type: medium
48%
0.0 In
12:00

WNW
WNW

7 / 14 mph 64 / 64°F 79% 1023 mb
Low level cloud: 86%
Mid level cloud: 83%
High level cloud: 16%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NNW
NNW

8 / 17 mph 63 / 63°F 82% 1024 mb
Low level cloud: 27%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
Mon 03
Jun
00:00

W
W

5 / 11 mph 52 / 51°F 93% 1020 mb
Low level cloud: 59%
Mid level cloud: 48%
High level cloud: 81%
Most Significant Cloud Type: low
85%
0.0 In
06:00

NW
NW

4 / 9 mph 59 / 59°F 89% 1025 mb
Low level cloud: 20%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
19%
0.0 In
12:00

NNW
NNW

15 / 30 mph 62 / 62°F 55% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
0.0 In
18:00

NNW
NNW

1 / 2 mph 66 / 66°F 82% 1023 mb
Low level cloud: 74%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
74%
0.0 In
Tue 04
Jun
00:00

W
W

5 / 11 mph 42 / 39°F 92% 1020 mb
Low level cloud: 2%
Mid level cloud: 9%
High level cloud: 3%
Most Significant Cloud Type: medium
13%
0.0 In
06:00

WNW
WNW

5 / 9 mph 56 / 56°F 91% 1020 mb
Low level cloud: 17%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.0 In
12:00

NNW
NNW

8 / 15 mph 60 / 60°F 58% 1016 mb
Low level cloud: 39%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.0 In
18:00

N
N

7 / 13 mph 60 / 60°F 75% 1019 mb
Low level cloud: 66%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: low
66%
0.0 In
Wed 05
Jun
00:00

W
W

4 / 8 mph 45 / 43°F 92% 1013 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 40%
Most Significant Cloud Type: medium
9%
0.0 In
06:00

W
W

4 / 9 mph 53 / 51°F 87% 1018 mb
Low level cloud: 2%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: low
4%
0.0 In
12:00

NW
NW

15 / 29 mph 58 / 55°F 56% 1008 mb
Low level cloud: 4%
Mid level cloud: 6%
High level cloud: 20%
Most Significant Cloud Type: low
8%
0.0 In
18:00

NW
NW

12 / 24 mph 58 / 56°F 72% 1019 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 1%
Most Significant Cloud Type: medium
7%
0.0 In
Thu 06
Jun
00:00

W
W

4 / 7 mph 50 / 49°F 89% 1004 mb
Low level cloud: 7%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
06:00

NW
NW

3 / 6 mph 53 / 53°F 82% 1021 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
12:00

WSW
WSW

17 / 33 mph 49 / 44°F 94% 998 mb
Low level cloud: 98%
Mid level cloud: 84%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
18:00

WNW
WNW

8 / 16 mph 62 / 62°F 75% 1018 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
0.0 In
Fri 07
Jun
00:00

NNW
NNW

9 / 18 mph 47 / 43°F 91% 1002 mb
Low level cloud: 79%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
85%
0.2 In
06:00

N
N

8 / 16 mph 53 / 50°F 86% 1017 mb
Low level cloud: 85%
Mid level cloud: 24%
High level cloud: 10%
Most Significant Cloud Type: low
95%
0.0 In
12:00

NNW
NNW

9 / 17 mph 59 / 57°F 65% 1007 mb
Low level cloud: 55%
Mid level cloud: 66%
High level cloud: 12%
Most Significant Cloud Type: low
79%
0.0 In
18:00

ESE
ESE

7 / 14 mph 58 / 57°F 76% 1018 mb
Low level cloud: 13%
Mid level cloud: 69%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Sat 08
Jun
00:00

WNW
WNW

7 / 14 mph 51 / 48°F 87% 1009 mb
Low level cloud: 78%
Mid level cloud: 76%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.1 In
06:00

E
E

3 / 6 mph 49 / 49°F 98% 1016 mb
Low level cloud: 99%
Mid level cloud: 95%
High level cloud: 81%
Most Significant Cloud Type: low
100%
0.1 In
12:00

N
N

7 / 14 mph 62 / 62°F 67% 1013 mb
Low level cloud: 61%
Mid level cloud: 30%
High level cloud: 90%
Most Significant Cloud Type: low
82%
0.0 In
18:00

WNW
WNW

1 / 3 mph 52 / 52°F 91% 1015 mb
Low level cloud: 36%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
83%
0.2 In

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