WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Haman 14 Day Long Range Forecast

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

South Korea

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

Over the next 14 days the Haman forecast suggests the average daytime maximum temperature will be around 13°C, with a high for the two weeks of 19°C expected on the afternoon of Sunday 24th. The average minimum temperature will be 4°C, dipping to its lowest on the morning of Saturday 30th at 0°C. Expect the next 14 days have mostly dry days although Sunday is likely to see a significant amount of rain. Predictions are Sunday 24th will have the most precipitation with an accumulation of around 14.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 22
Nov
18:00

N
N

2 / 3 mph 56 / 57°F 73% 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
21:00

N
N

3 / 6 mph 46 / 46°F 82% 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
Sat 23
Nov
00:00

NNE
NNE

3 / 6 mph 44 / 44°F 91% 1026 mb
Low level cloud: 1%
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

N
N

3 / 6 mph 43 / 42°F 93% 1025 mb
Low level cloud: 5%
Mid level cloud: 0%
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

N
N

3 / 6 mph 42 / 40°F 94% 1026 mb
Low level cloud: 11%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

3 / 4 mph 51 / 50°F 83% 1026 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

3 / 3 mph 63 / 63°F 59% 1024 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
15:00

NNE
NNE

3 / 4 mph 64 / 64°F 57% 1021 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
18:00

NNW
NNW

0 / 0 mph 52 / 52°F 79% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: high
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

2 / 5 mph 49 / 49°F 84% 1021 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
Sun 24
Nov
00:00

NNE
NNE

2 / 4 mph 49 / 49°F 84% 1020 mb
Low level cloud: 73%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

3 / 5 mph 52 / 51°F 86% 1018 mb
Low level cloud: 87%
Mid level cloud: 63%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

2 / 2 mph 51 / 51°F 97% 1017 mb
Low level cloud: 90%
Mid level cloud: 94%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
09:00

NNW
NNW

3 / 4 mph 54 / 54°F 94% 1018 mb
Low level cloud: 94%
Mid level cloud: 36%
High level cloud: 10%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

1 / 2 mph 56 / 56°F 92% 1016 mb
Low level cloud: 71%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

0 / 1 mph 66 / 64°F 82% 1014 mb
Low level cloud: 50%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

2 / 4 mph 56 / 56°F 93% 1015 mb
Low level cloud: 6%
Mid level cloud: 6%
High level cloud: 33%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

2 / 4 mph 54 / 55°F 94% 1017 mb
Low level cloud: 4%
Mid level cloud: 22%
High level cloud: 9%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 25
Nov
00:00

NNW
NNW

8 / 14 mph 53 / 51°F 86% 1019 mb
Low level cloud: 18%
Mid level cloud: 19%
High level cloud: 100%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

7 / 9 mph 48 / 45°F 70% 1021 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 75%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

8 / 10 mph 43 / 39°F 65% 1023 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 96%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

8 / 9 mph 43 / 37°F 54% 1026 mb
Low level cloud: 0%
Mid level cloud: 58%
High level cloud: 71%
Most Significant Cloud Type: medium
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

10 / 12 mph 47 / 42°F 41% 1026 mb
Low level cloud: 88%
Mid level cloud: 29%
High level cloud: 60%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

8 / 9 mph 47 / 43°F 53% 1027 mb
Low level cloud: 61%
Mid level cloud: 23%
High level cloud: 100%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

5 / 8 mph 44 / 41°F 69% 1028 mb
Low level cloud: 15%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

4 / 6 mph 43 / 41°F 73% 1030 mb
Low level cloud: 36%
Mid level cloud: 25%
High level cloud: 100%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 26
Nov
00:00

N
N

4 / 6 mph 40 / 38°F 83% 1030 mb
Low level cloud: 28%
Mid level cloud: 0%
High level cloud: 19%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

3 / 6 mph 38 / 36°F 89% 1030 mb
Low level cloud: 14%
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
06:00

N
N

3 / 6 mph 37 / 34°F 92% 1030 mb
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

4 / 4 mph 44 / 42°F 80% 1031 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

5 / 5 mph 54 / 53°F 57% 1030 mb
Low level cloud: 31%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

4 / 5 mph 55 / 54°F 54% 1028 mb
Low level cloud: 14%
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
18:00

NE
NE

3 / 5 mph 47 / 47°F 71% 1028 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

2 / 4 mph 41 / 41°F 78% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: high
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 27
Nov
00:00

NNW
NNW

2 / 4 mph 39 / 39°F 81% 1027 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 14%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

2 / 5 mph 39 / 38°F 83% 1026 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 37%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

3 / 6 mph 38 / 37°F 87% 1026 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 32%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

5 / 6 mph 45 / 41°F 75% 1027 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

9 / 10 mph 51 / 47°F 44% 1026 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

9 / 11 mph 51 / 47°F 33% 1025 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
18:00

N
N

5 / 9 mph 42 / 38°F 44% 1025 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
21:00

NNW
NNW

4 / 6 mph 41 / 38°F 51% 1026 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 54%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 28
Nov
00:00

N
N

5 / 9 mph 40 / 36°F 52% 1026 mb
Low level cloud: 44%
Mid level cloud: 94%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

5 / 8 mph 40 / 36°F 59% 1027 mb
Low level cloud: 32%
Mid level cloud: 89%
High level cloud: 100%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

5 / 9 mph 39 / 35°F 80% 1027 mb
Low level cloud: 58%
Mid level cloud: 43%
High level cloud: 58%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

5 / 5 mph 45 / 42°F 78% 1029 mb
Low level cloud: 49%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

6 / 7 mph 51 / 49°F 62% 1028 mb
Low level cloud: 76%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

4 / 5 mph 51 / 50°F 60% 1027 mb
Low level cloud: 88%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

3 / 5 mph 43 / 43°F 74% 1028 mb
Low level cloud: 19%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

2 / 4 mph 40 / 40°F 81% 1029 mb
Low level cloud: 27%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 29
Nov
03:00

NNW
NNW

4 / 6 mph 47 / 46°F 84% 1023 mb
Low level cloud: 31%
Mid level cloud: 6%
High level cloud: 10%
Most Significant Cloud Type: low
34%
0.0 In
09:00

N
N

2 / 2 mph 51 / 51°F 79% 1032 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: low
3%
0.0 In
15:00

NNW
NNW

2 / 3 mph 62 / 62°F 38% 1030 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 20%
Most Significant Cloud Type: medium
2%
0.0 In
21:00

NNE
NNE

2 / 3 mph 47 / 46°F 75% 1032 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: high
20%
0.0 In
Sat 30
Nov
03:00

NNW
NNW

3 / 6 mph 36 / 33°F 68% 1032 mb
Low level cloud: 55%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: low
57%
0.0 In
09:00

N
N

3 / 3 mph 46 / 46°F 71% 1033 mb
Low level cloud: 57%
Mid level cloud: 11%
High level cloud: 14%
Most Significant Cloud Type: low
62%
0.0 In
15:00

SW
SW

6 / 7 mph 59 / 59°F 48% 1029 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 11%
Most Significant Cloud Type: medium
45%
0.0 In
21:00

NNW
NNW

2 / 2 mph 50 / 50°F 71% 1029 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 4%
Most Significant Cloud Type: medium
24%
0.0 In
Sun 01
Dec
03:00

NNW
NNW

3 / 5 mph 41 / 39°F 69% 1029 mb
Low level cloud: 0%
Mid level cloud: 92%
High level cloud: 8%
Most Significant Cloud Type: medium
92%
0.0 In
09:00

NNW
NNW

3 / 4 mph 48 / 47°F 61% 1028 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 99%
Most Significant Cloud Type: medium
18%
0.0 In
15:00

N
N

5 / 6 mph 56 / 55°F 51% 1025 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 4%
Most Significant Cloud Type: medium
45%
0.0 In
21:00

N
N

3 / 5 mph 43 / 41°F 63% 1026 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 19%
Most Significant Cloud Type: medium
44%
0.0 In
Mon 02
Dec
03:00

NNW
NNW

4 / 6 mph 40 / 37°F 76% 1025 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 10%
Most Significant Cloud Type: medium
30%
0.0 In
09:00

NNW
NNW

4 / 5 mph 47 / 45°F 68% 1025 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 34%
Most Significant Cloud Type: medium
14%
0.0 In
15:00

N
N

8 / 9 mph 50 / 47°F 32% 1025 mb
Low level cloud: 0%
Mid level cloud: 66%
High level cloud: 33%
Most Significant Cloud Type: medium
67%
0.0 In
21:00

N
N

4 / 5 mph 44 / 41°F 50% 1026 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 96%
Most Significant Cloud Type: medium
9%
0.0 In
Tue 03
Dec
03:00

NNW
NNW

5 / 6 mph 34 / 29°F 60% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

N
N

5 / 6 mph 42 / 39°F 56% 1027 mb
Low level cloud: 59%
Mid level cloud: 29%
High level cloud: 9%
Most Significant Cloud Type: low
70%
0.0 In
15:00

N
N

9 / 10 mph 45 / 41°F 67% 1028 mb
Low level cloud: 89%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
21:00

N
N

4 / 6 mph 44 / 42°F 86% 1028 mb
Low level cloud: 11%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
77%
0.0 In
Wed 04
Dec
03:00

N
N

4 / 5 mph 37 / 34°F 92% 1031 mb
Low level cloud: 15%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
20%
0.0 In
09:00

N
N

4 / 4 mph 44 / 42°F 79% 1027 mb
Low level cloud: 11%
Mid level cloud: 100%
High level cloud: 86%
Most Significant Cloud Type: medium
100%
0.0 In
15:00

NNE
NNE

6 / 8 mph 54 / 52°F 50% 1030 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

N
N

3 / 5 mph 43 / 41°F 83% 1026 mb
Low level cloud: 10%
Mid level cloud: 81%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
Thu 05
Dec
03:00

N
N

4 / 6 mph 37 / 34°F 84% 1032 mb
Low level cloud: 11%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
10%
0.0 In
09:00

N
N

4 / 4 mph 46 / 45°F 79% 1026 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
15:00

NE
NE

11 / 13 mph 52 / 49°F 52% 1030 mb
Low level cloud: 42%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
42%
0.0 In
21:00

NNW
NNW

3 / 4 mph 46 / 45°F 77% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Fri 06
Dec
03:00

N
N

6 / 9 mph 41 / 37°F 82% 1028 mb
Low level cloud: 25%
Mid level cloud: 0%
High level cloud: 77%
Most Significant Cloud Type: low
34%
0.0 In
09:00

NNW
NNW

4 / 5 mph 45 / 44°F 70% 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

NNE
NNE

12 / 14 mph 53 / 49°F 60% 1023 mb
Low level cloud: 37%
Mid level cloud: 94%
High level cloud: 0%
Most Significant Cloud Type: low
70%
0.0 In
21:00

NNW
NNW

4 / 5 mph 44 / 42°F 72% 1023 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: low
3%
0.0 In
Sat 07
Dec
03:00

NW
NW

4 / 6 mph 41 / 38°F 83% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

NNW
NNW

4 / 5 mph 45 / 43°F 70% 1024 mb
Low level cloud: 4%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
6%
0.0 In
15:00

NNW
NNW

4 / 5 mph 58 / 58°F 38% 1020 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 11%
Most Significant Cloud Type: medium
30%
0.0 In
21:00

NNW
NNW

2 / 4 mph 40 / 40°F 72% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 76%
Most Significant Cloud Type: high
76%
0.0 In

Other Locations Near to Haman

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