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Shanhaiguan 14 Day Long Range Forecast

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

China

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

The next 14 day outlook for Shanhaiguan shows the average daytime maximum temperature will be around 24°C, with a high for the two weeks of 29°C expected on the afternoon of Sunday 12th. The mean minimum temperature will be 14°C, dipping to its lowest on the morning of Saturday 4th at 12°C. Expect the following 14 days ahead to remain predominantly dry. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 04
May		20:00

SSW
SSW

 9 / 10 mph 58 / 56°F 67% 1013 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 95%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NW
NW

 3 / 5 mph 59 / 59°F 60% 1013 mb
Low level cloud: 0%
Mid level cloud: 94%
High level cloud: 72%
Most Significant Cloud Type: medium
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May		02:00

SW
SW

 3 / 5 mph 59 / 59°F 54% 1011 mb
Low level cloud: 0%
Mid level cloud: 66%
High level cloud: 86%
Most Significant Cloud Type: medium
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SSW
SSW

 3 / 5 mph 60 / 59°F 62% 1010 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SSE
SSE

 5 / 6 mph 59 / 57°F 69% 1010 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 74%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSE
SSE

 8 / 9 mph 62 / 60°F 65% 1010 mb
Low level cloud: 10%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: medium
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

S
S

 6 / 7 mph 64 / 61°F 65% 1008 mb
Low level cloud: 12%
Mid level cloud: 12%
High level cloud: 4%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SE
SE

 6 / 7 mph 64 / 61°F 67% 1008 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

WSW
WSW

 4 / 5 mph 56 / 56°F 77% 1009 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

W
W

 5 / 10 mph 55 / 54°F 74% 1010 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 06
May		02:00

NW
NW

 4 / 9 mph 58 / 58°F 67% 1009 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNW
NNW

 6 / 13 mph 61 / 58°F 61% 1009 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

N
N

 9 / 12 mph 68 / 66°F 34% 1011 mb
Low level cloud: 0%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: medium
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

N
N

 17 / 19 mph 72 / 73°F 30% 1012 mb
Low level cloud: 0%
Mid level cloud: 66%
High level cloud: 100%
Most Significant Cloud Type: medium
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

N
N

 15 / 18 mph 75 / 73°F 22% 1011 mb
Low level cloud: 0%
Mid level cloud: 51%
High level cloud: 93%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNE
NNE

 11 / 13 mph 75 / 73°F 22% 1011 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNW
NNW

 6 / 11 mph 66 / 66°F 28% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 99%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NNW
NNW

 7 / 14 mph 62 / 62°F 32% 1014 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 07
May		02:00

NNW
NNW

 9 / 18 mph 60 / 60°F 35% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 32%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNW
NNW

 8 / 17 mph 61 / 59°F 35% 1015 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 83%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

N
N

 11 / 13 mph 73 / 73°F 26% 1017 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 32%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NNE
NNE

 13 / 15 mph 78 / 75°F 22% 1018 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 13%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

 10 / 12 mph 79 / 76°F 22% 1017 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 19%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SSE
SSE

 5 / 6 mph 77 / 75°F 29% 1017 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
20:00

W
W

 3 / 5 mph 67 / 67°F 33% 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
23:00

NW
NW

 4 / 8 mph 63 / 63°F 35% 1020 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May		02:00

NNW
NNW

 4 / 9 mph 60 / 60°F 32% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNW
NNW

 4 / 9 mph 59 / 58°F 33% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SE
SE

 2 / 3 mph 74 / 73°F 26% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 84%
Most Significant Cloud Type: high
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

S
S

 9 / 10 mph 77 / 74°F 24% 1019 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SSW
SSW

 11 / 12 mph 77 / 75°F 30% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SSW
SSW

 11 / 13 mph 70 / 68°F 41% 1016 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

 8 / 12 mph 61 / 61°F 59% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

WSW
WSW

 9 / 18 mph 58 / 56°F 47% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: high
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 09
May		02:00

SW
SW

 9 / 18 mph 58 / 56°F 45% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SW
SW

 9 / 20 mph 56 / 53°F 58% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SW
SW

 10 / 12 mph 73 / 75°F 37% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 16%
Most Significant Cloud Type: high
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSE
SSE

 9 / 11 mph 79 / 77°F 32% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 43%
Most Significant Cloud Type: high
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SE
SE

 8 / 9 mph 78 / 76°F 34% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 87%
Most Significant Cloud Type: high
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ESE
ESE

 7 / 8 mph 73 / 75°F 37% 1011 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 95%
Most Significant Cloud Type: high
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNE
NNE

 4 / 7 mph 62 / 62°F 49% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 99%
Most Significant Cloud Type: high
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 4 / 9 mph 60 / 60°F 55% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 10
May		02:00

SSW
SSW

 4 / 8 mph 57 / 57°F 63% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 91%
Most Significant Cloud Type: high
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

WSW
WSW

 7 / 14 mph 57 / 54°F 65% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SW
SW

 13 / 15 mph 71 / 70°F 46% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: high
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSW
SSW

 19 / 22 mph 71 / 69°F 50% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 43%
Most Significant Cloud Type: high
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SSW
SSW

 15 / 17 mph 68 / 68°F 49% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

 10 / 11 mph 69 / 67°F 48% 1006 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 98%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

 5 / 6 mph 61 / 61°F 62% 1006 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 98%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SSW
SSW

 6 / 8 mph 60 / 60°F 70% 1006 mb
Low level cloud: 0%
Mid level cloud: 62%
High level cloud: 100%
Most Significant Cloud Type: medium
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 11
May		02:00

SW
SW

 9 / 15 mph 58 / 57°F 80% 1003 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 1%
Most Significant Cloud Type: medium
46%
0.0 In
08:00

N
N

 3 / 3 mph 65 / 65°F 84% 1008 mb
Low level cloud: 52%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: low
53%
0.0 In
14:00

SSE
SSE

 10 / 12 mph 72 / 76°F 60% 1000 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
20:00

NW
NW

 3 / 5 mph 70 / 71°F 40% 1005 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
Sun 12
May		02:00

WNW
WNW

 4 / 6 mph 60 / 60°F 64% 1005 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 52%
Most Significant Cloud Type: medium
28%
0.0 In
08:00

ENE
ENE

 6 / 7 mph 77 / 74°F 17% 1012 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
14:00

NW
NW

 18 / 21 mph 84 / 80°F 12% 1004 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
4%
0.0 In
20:00

SE
SE

 2 / 2 mph 72 / 73°F 26% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 13
May		02:00

WNW
WNW

 4 / 8 mph 64 / 64°F 19% 1009 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 7%
Most Significant Cloud Type: medium
29%
0.0 In
08:00

NNW
NNW

 5 / 6 mph 75 / 75°F 25% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
14:00

SSE
SSE

 9 / 10 mph 79 / 76°F 17% 1009 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 17%
Most Significant Cloud Type: medium
17%
0.0 In
20:00

SW
SW

 6 / 10 mph 63 / 64°F 48% 1018 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 8%
Most Significant Cloud Type: medium
9%
0.0 In
Tue 14
May		02:00

N
N

 5 / 6 mph 71 / 71°F 18% 1010 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 100%
Most Significant Cloud Type: medium
20%
0.0 In
08:00

SW
SW

 13 / 15 mph 67 / 67°F 43% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 3%
Most Significant Cloud Type: high
3%
0.0 In
14:00

SE
SE

 10 / 11 mph 73 / 75°F 33% 1011 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 6%
Most Significant Cloud Type: medium
12%
0.0 In
20:00

WNW
WNW

 5 / 7 mph 70 / 70°F 64% 1009 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 32%
Most Significant Cloud Type: medium
24%
0.0 In
Wed 15
May		02:00

NNE
NNE

 4 / 6 mph 66 / 66°F 54% 1010 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 100%
Most Significant Cloud Type: medium
14%
0.0 In
08:00

NNE
NNE

 5 / 11 mph 59 / 59°F 87% 1015 mb
Low level cloud: 55%
Mid level cloud: 50%
High level cloud: 100%
Most Significant Cloud Type: low
84%
1.1 In
14:00

SSE
SSE

 10 / 11 mph 78 / 79°F 49% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
20:00

SSW
SSW

 5 / 11 mph 66 / 65°F 49% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.1 In
Thu 16
May		02:00

SSE
SSE

 4 / 6 mph 64 / 64°F 81% 1012 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 11%
Most Significant Cloud Type: medium
3%
0.0 In
08:00

WSW
WSW

 15 / 29 mph 72 / 76°F 47% 1010 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
14:00

SSE
SSE

 7 / 8 mph 72 / 76°F 60% 1010 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 100%
Most Significant Cloud Type: medium
25%
0.0 In
20:00

WSW
WSW

 15 / 32 mph 73 / 75°F 35% 1004 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 77%
Most Significant Cloud Type: medium
6%
0.0 In
Fri 17
May		02:00

SW
SW

 9 / 12 mph 64 / 64°F 86% 1010 mb
Low level cloud: 39%
Mid level cloud: 69%
High level cloud: 100%
Most Significant Cloud Type: low
74%
0.0 In
08:00

SW
SW

 14 / 28 mph 71 / 71°F 40% 1003 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 100%
Most Significant Cloud Type: medium
34%
0.0 In
14:00

S
S

 10 / 13 mph 71 / 71°F 61% 1007 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
0.1 In
20:00

SW
SW

 10 / 20 mph 64 / 64°F 54% 1005 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 16%
Most Significant Cloud Type: medium
3%
0.0 In
Sat 18
May		02:00

E
E

 4 / 7 mph 64 / 64°F 90% 1010 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: medium
6%
0.2 In
08:00

SW
SW

 11 / 21 mph 66 / 66°F 54% 1005 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
14:00

S
S

 9 / 17 mph 71 / 71°F 63% 1010 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: medium
6%
0.0 In
20:00

ENE
ENE

 3 / 6 mph 71 / 71°F 60% 1005 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 11%
Most Significant Cloud Type: medium
14%
0.0 In
Sun 19
May		02:00

S
S

 6 / 10 mph 64 / 64°F 83% 1008 mb
Low level cloud: 86%
Mid level cloud: 46%
High level cloud: 52%
Most Significant Cloud Type: low
100%
0.0 In
08:00

ENE
ENE

 10 / 21 mph 67 / 67°F 73% 1010 mb
Low level cloud: 2%
Mid level cloud: 41%
High level cloud: 66%
Most Significant Cloud Type: medium
49%
0.0 In
14:00

SSW
SSW

 14 / 25 mph 71 / 71°F 63% 1006 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 83%
Most Significant Cloud Type: medium
7%
0.0 In
20:00

ENE
ENE

 5 / 11 mph 67 / 67°F 51% 1007 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 9%
Most Significant Cloud Type: medium
28%
0.1 In

Other Locations Near to Shanhaiguan

Cities and Towns: Qinhuangdao, China

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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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.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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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.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

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