WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Kochang 14 Day Long Range Forecast

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

North Korea

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

The outlook for Kochang in the two weeks ahead shows the average daytime maximum temperature will be around 6°C, with a high for the two weeks of 12°C expected on the afternoon of Sunday 18th. The average minimum temperature will be -7°C, dipping to its lowest on the morning of Monday 12th at -13°C. Expect the following 14 days ahead to have mixed weather with some days dry and some seeing a little rain, sleet or snow. It looks like Sunday 11th will have the most precipitation with an accumulation of around 3.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 08
Jan
21:00

WNW
WNW

5 / 10 mph 18 / 11°F 53% 1028 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
Fri 09
Jan
00:00

WNW
WNW

5 / 10 mph 17 / 9°F 57% 1028 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

5 / 10 mph 15 / 7°F 63% 1027 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
06:00

WNW
WNW

4 / 10 mph 15 / 8°F 72% 1026 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
09:00

WNW
WNW

3 / 4 mph 27 / 23°F 68% 1026 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
12:00

W
W

4 / 4 mph 43 / 40°F 43% 1024 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
15:00

WSW
WSW

5 / 6 mph 45 / 42°F 39% 1021 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
18:00

WSW
WSW

4 / 9 mph 26 / 21°F 73% 1021 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
21:00

WSW
WSW

4 / 9 mph 24 / 19°F 86% 1021 mb
Low level cloud: 5%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 10
Jan
00:00

SW
SW

4 / 10 mph 24 / 19°F 92% 1019 mb
Low level cloud: 15%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

7 / 14 mph 28 / 21°F 88% 1015 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

9 / 20 mph 30 / 21°F 87% 1013 mb
Low level cloud: 5%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

15 / 17 mph 40 / 32°F 79% 1013 mb
Low level cloud: 39%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

18 / 21 mph 43 / 35°F 62% 1013 mb
Low level cloud: 40%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

20 / 23 mph 40 / 30°F 59% 1013 mb
Low level cloud: 31%
Mid level cloud: 25%
High level cloud: 13%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

16 / 19 mph 31 / 20°F 86% 1016 mb
Low level cloud: 63%
Mid level cloud: 46%
High level cloud: 1%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

17 / 20 mph 26 / 13°F 82% 1018 mb
Low level cloud: 27%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 11
Jan
00:00

WNW
WNW

15 / 17 mph 25 / 13°F 80% 1020 mb
Low level cloud: 62%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

7 / 9 mph 22 / 13°F 78% 1021 mb
Low level cloud: 76%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

4 / 5 mph 22 / 17°F 72% 1022 mb
Low level cloud: 23%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

3 / 4 mph 24 / 20°F 76% 1022 mb
Low level cloud: 57%
Mid level cloud: 59%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

16 / 19 mph 28 / 16°F 65% 1022 mb
Low level cloud: 36%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

19 / 23 mph 27 / 13°F 68% 1022 mb
Low level cloud: 50%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

14 / 16 mph 20 / 6°F 72% 1025 mb
Low level cloud: 84%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

8 / 9 mph 19 / 9°F 72% 1027 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
Mon 12
Jan
00:00

WNW
WNW

4 / 6 mph 14 / 7°F 81% 1028 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
03:00

WNW
WNW

4 / 9 mph 10 / 3°F 83% 1028 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
06:00

W
W

4 / 8 mph 8 / 1°F 85% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

2 / 3 mph 21 / 18°F 66% 1026 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
12:00

SW
SW

3 / 4 mph 37 / 34°F 43% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 8%
Most Significant Cloud Type: high
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

6 / 6 mph 42 / 38°F 40% 1018 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 4%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

4 / 9 mph 23 / 17°F 83% 1018 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 11%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

4 / 9 mph 24 / 18°F 86% 1016 mb
Low level cloud: 88%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
Jan
00:00

SW
SW

7 / 15 mph 31 / 24°F 95% 1012 mb
Low level cloud: 89%
Mid level cloud: 59%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

15 / 17 mph 37 / 28°F 83% 1010 mb
Low level cloud: 86%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

15 / 18 mph 33 / 23°F 78% 1011 mb
Low level cloud: 32%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

14 / 16 mph 30 / 19°F 76% 1015 mb
Low level cloud: 29%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

17 / 19 mph 32 / 20°F 65% 1017 mb
Low level cloud: 71%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

17 / 19 mph 33 / 22°F 59% 1016 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
18:00

WNW
WNW

11 / 13 mph 23 / 11°F 68% 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
21:00

WNW
WNW

9 / 10 mph 22 / 12°F 65% 1021 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
Wed 14
Jan
00:00

WNW
WNW

6 / 8 mph 19 / 12°F 72% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

4 / 8 mph 17 / 10°F 83% 1025 mb
Low level cloud: 4%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

4 / 8 mph 15 / 8°F 86% 1026 mb
Low level cloud: 14%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

3 / 4 mph 26 / 22°F 78% 1026 mb
Low level cloud: 1%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

6 / 7 mph 39 / 34°F 54% 1025 mb
Low level cloud: 28%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

6 / 7 mph 41 / 36°F 55% 1024 mb
Low level cloud: 4%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

4 / 8 mph 23 / 17°F 83% 1025 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 33%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

3 / 6 mph 20 / 16°F 88% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 74%
Most Significant Cloud Type: high
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 15
Jan
03:00

WNW
WNW

4 / 9 mph 18 / 11°F 88% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

NW
NW

3 / 4 mph 26 / 23°F 46% 1029 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 17%
Most Significant Cloud Type: medium
2%
0.0 In
15:00

NW
NW

5 / 6 mph 42 / 39°F 32% 1024 mb
Low level cloud: 0%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
21:00

WNW
WNW

2 / 4 mph 34 / 34°F 85% 1023 mb
Low level cloud: 0%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Fri 16
Jan
03:00

NW
NW

2 / 5 mph 37 / 36°F 88% 1020 mb
Low level cloud: 78%
Mid level cloud: 92%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
09:00

WNW
WNW

5 / 7 mph 36 / 32°F 88% 1018 mb
Low level cloud: 17%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.0 In
15:00

WNW
WNW

7 / 9 mph 48 / 45°F 56% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

WNW
WNW

4 / 6 mph 29 / 24°F 93% 1021 mb
Low level cloud: 23%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
22%
0.0 In
Sat 17
Jan
03:00

WNW
WNW

5 / 10 mph 28 / 23°F 73% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

WNW
WNW

3 / 5 mph 29 / 26°F 73% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:00

WNW
WNW

4 / 6 mph 54 / 53°F 44% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

WNW
WNW

4 / 8 mph 27 / 23°F 88% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 18
Jan
03:00

NW
NW

3 / 6 mph 31 / 28°F 57% 1026 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
09:00

WNW
WNW

2 / 4 mph 35 / 35°F 67% 1026 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
15:00

SE
SE

3 / 4 mph 59 / 60°F 39% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

NNE
NNE

1 / 3 mph 33 / 33°F 89% 1030 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Mon 19
Jan
03:00

NNW
NNW

2 / 4 mph 33 / 33°F 64% 1029 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

ENE
ENE

2 / 2 mph 38 / 38°F 88% 1031 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.0 In
15:00

ESE
ESE

3 / 4 mph 59 / 59°F 48% 1027 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
21:00

E
E

2 / 4 mph 36 / 35°F 92% 1029 mb
Low level cloud: 33%
Mid level cloud: 0%
High level cloud: 40%
Most Significant Cloud Type: low
37%
0.0 In
Tue 20
Jan
03:00

NNE
NNE

2 / 4 mph 35 / 35°F 92% 1031 mb
Low level cloud: 2%
Mid level cloud: 3%
High level cloud: 34%
Most Significant Cloud Type: medium
9%
0.0 In
09:00

WSW
WSW

1 / 2 mph 36 / 36°F 87% 1028 mb
Low level cloud: 91%
Mid level cloud: 65%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
15:00

ESE
ESE

4 / 5 mph 59 / 59°F 61% 1028 mb
Low level cloud: 1%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
0.0 In
21:00

NW
NW

2 / 4 mph 37 / 37°F 93% 1029 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.0 In
Wed 21
Jan
03:00

NE
NE

2 / 3 mph 36 / 37°F 93% 1031 mb
Low level cloud: 25%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: low
39%
0.0 In
09:00

NW
NW

1 / 2 mph 39 / 39°F 86% 1029 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
0.0 In
15:00

ESE
ESE

4 / 6 mph 56 / 56°F 68% 1028 mb
Low level cloud: 30%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
41%
0.0 In
21:00

WNW
WNW

2 / 4 mph 38 / 37°F 89% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: high
32%
0.0 In
Thu 22
Jan
03:00

SSE
SSE

1 / 2 mph 37 / 37°F 96% 1031 mb
Low level cloud: 35%
Mid level cloud: 46%
High level cloud: 22%
Most Significant Cloud Type: low
53%
0.0 In
09:00

NW
NW

3 / 5 mph 39 / 38°F 86% 1029 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
15:00

ESE
ESE

6 / 8 mph 60 / 60°F 63% 1028 mb
Low level cloud: 8%
Mid level cloud: 14%
High level cloud: 5%
Most Significant Cloud Type: low
12%
0.0 In
21:00

NNW
NNW

2 / 4 mph 41 / 41°F 92% 1030 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: medium
5%
0.0 In
Fri 23
Jan
03:00

SSE
SSE

3 / 4 mph 43 / 42°F 94% 1027 mb
Low level cloud: 90%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
09:00

ENE
ENE

2 / 4 mph 43 / 43°F 90% 1030 mb
Low level cloud: 12%
Mid level cloud: 2%
High level cloud: 96%
Most Significant Cloud Type: low
24%
0.0 In
15:00

W
W

4 / 6 mph 54 / 53°F 87% 1024 mb
Low level cloud: 40%
Mid level cloud: 16%
High level cloud: 2%
Most Significant Cloud Type: low
46%
0.6 In
21:00

ENE
ENE

3 / 4 mph 45 / 44°F 99% 1028 mb
Low level cloud: 95%
Mid level cloud: 94%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.6 In

Other Locations Near to Kochang

Cities and Towns: Haeinsa Temple, North Korea
Ski Resorts: Muju, South Korea

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