Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Sodo 14 Day Long Range Forecast

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

Ethiopia

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

For Sodo in the coming two weeks the average daytime maximum temperature will be around 20°C, with a high for the two weeks of 21°C expected on the afternoon of Thursday 31st. The average minimum temperature will be 15°C, dipping to its lowest on the morning of Tuesday 5th at 11°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. Current predictions suggest Monday 4th will have the most precipitation with an accumulation of around 27.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 31
Jul		21:00

S
S

 1 / 2 mph 66 / 66°F 82% 1017 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 11%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 01
Aug		00:00

SE
SE

 2 / 3 mph 64 / 64°F 83% 1018 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 11%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 2 / 3 mph 63 / 63°F 88% 1017 mb
Low level cloud: 2%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 2 / 3 mph 61 / 61°F 91% 1017 mb
Low level cloud: 12%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: medium
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 4 / 6 mph 64 / 61°F 78% 1018 mb
Low level cloud: 1%
Mid level cloud: 43%
High level cloud: 11%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 4 / 6 mph 67 / 64°F 74% 1016 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 3 / 6 mph 68 / 65°F 72% 1014 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 12%
Most Significant Cloud Type: medium
45%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SW
SW

 3 / 5 mph 67 / 65°F 83% 1014 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

WNW
WNW

 0 / 1 mph 63 / 63°F 86% 1017 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 82%
Most Significant Cloud Type: medium
47%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sat 02
Aug		00:00

N
N

 1 / 2 mph 63 / 63°F 87% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 37%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

 3 / 4 mph 62 / 62°F 90% 1016 mb
Low level cloud: 4%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

 3 / 4 mph 60 / 60°F 92% 1017 mb
Low level cloud: 16%
Mid level cloud: 58%
High level cloud: 40%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 4 / 6 mph 61 / 60°F 83% 1018 mb
Low level cloud: 10%
Mid level cloud: 48%
High level cloud: 38%
Most Significant Cloud Type: medium
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 1 / 2 mph 65 / 62°F 77% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: medium
45%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

W
W

 2 / 3 mph 66 / 63°F 78% 1014 mb
Low level cloud: 0%
Mid level cloud: 51%
High level cloud: 33%
Most Significant Cloud Type: medium
52%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NW
NW

 4 / 6 mph 66 / 63°F 86% 1015 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 89%
Most Significant Cloud Type: medium
50%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NNW
NNW

 3 / 5 mph 63 / 63°F 86% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 03
Aug		00:00

NW
NW

 1 / 2 mph 63 / 63°F 86% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 2 / 3 mph 60 / 60°F 93% 1016 mb
Low level cloud: 22%
Mid level cloud: 46%
High level cloud: 35%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

 5 / 9 mph 58 / 57°F 95% 1018 mb
Low level cloud: 48%
Mid level cloud: 49%
High level cloud: 85%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 4 / 7 mph 57 / 56°F 96% 1020 mb
Low level cloud: 72%
Mid level cloud: 51%
High level cloud: 19%
Most Significant Cloud Type: low
92%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

SSE
SSE

 2 / 4 mph 57 / 58°F 94% 1019 mb
Low level cloud: 71%
Mid level cloud: 51%
High level cloud: 44%
Most Significant Cloud Type: low
93%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

SW
SW

 4 / 7 mph 62 / 60°F 83% 1015 mb
Low level cloud: 14%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 3 / 6 mph 62 / 60°F 85% 1015 mb
Low level cloud: 14%
Mid level cloud: 43%
High level cloud: 21%
Most Significant Cloud Type: medium
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 2 / 3 mph 60 / 60°F 95% 1018 mb
Low level cloud: 35%
Mid level cloud: 45%
High level cloud: 10%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 04
Aug		00:00

WNW
WNW

 3 / 4 mph 60 / 60°F 93% 1018 mb
Low level cloud: 26%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 3 / 4 mph 59 / 59°F 95% 1017 mb
Low level cloud: 37%
Mid level cloud: 29%
High level cloud: 25%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 3 / 4 mph 58 / 59°F 94% 1018 mb
Low level cloud: 30%
Mid level cloud: 38%
High level cloud: 33%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 4 / 7 mph 62 / 59°F 85% 1019 mb
Low level cloud: 24%
Mid level cloud: 45%
High level cloud: 18%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 5 / 8 mph 67 / 65°F 72% 1016 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 18%
Most Significant Cloud Type: medium
25%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

W
W

 2 / 4 mph 66 / 63°F 82% 1014 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 35%
Most Significant Cloud Type: medium
49%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
18:00

SSE
SSE

 5 / 9 mph 59 / 57°F 96% 1017 mb
Low level cloud: 54%
Mid level cloud: 44%
High level cloud: 39%
Most Significant Cloud Type: low
74%
Expect 0.7 In of precipitation over the past 3 hours.
0.7 In
21:00

SE
SE

 2 / 4 mph 57 / 58°F 96% 1019 mb
Low level cloud: 52%
Mid level cloud: 46%
High level cloud: 21%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 05
Aug		00:00

SSW
SSW

 2 / 4 mph 56 / 58°F 95% 1019 mb
Low level cloud: 48%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 2 / 3 mph 56 / 58°F 96% 1018 mb
Low level cloud: 70%
Mid level cloud: 55%
High level cloud: 6%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 2 / 3 mph 56 / 57°F 97% 1019 mb
Low level cloud: 67%
Mid level cloud: 44%
High level cloud: 4%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 3 / 5 mph 59 / 58°F 88% 1019 mb
Low level cloud: 37%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 3 / 5 mph 64 / 61°F 80% 1017 mb
Low level cloud: 3%
Mid level cloud: 46%
High level cloud: 12%
Most Significant Cloud Type: medium
55%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

NW
NW

 1 / 2 mph 65 / 62°F 78% 1015 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 64%
Most Significant Cloud Type: medium
48%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

N
N

 4 / 6 mph 63 / 60°F 94% 1016 mb
Low level cloud: 32%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
59%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
21:00

WNW
WNW

 4 / 6 mph 59 / 59°F 96% 1018 mb
Low level cloud: 49%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: low
68%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 06
Aug		00:00

WSW
WSW

 2 / 3 mph 58 / 58°F 96% 1018 mb
Low level cloud: 54%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 2 / 4 mph 57 / 58°F 97% 1017 mb
Low level cloud: 56%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 2 / 3 mph 57 / 57°F 96% 1018 mb
Low level cloud: 54%
Mid level cloud: 64%
High level cloud: 0%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 3 / 5 mph 60 / 59°F 86% 1018 mb
Low level cloud: 27%
Mid level cloud: 52%
High level cloud: 9%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 2 / 2 mph 64 / 61°F 81% 1017 mb
Low level cloud: 5%
Mid level cloud: 45%
High level cloud: 33%
Most Significant Cloud Type: medium
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 2 / 3 mph 66 / 63°F 77% 1014 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 3%
Most Significant Cloud Type: medium
43%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

WSW
WSW

 2 / 3 mph 66 / 63°F 86% 1015 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 17%
Most Significant Cloud Type: medium
45%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
21:00

E
E

 1 / 2 mph 62 / 62°F 90% 1016 mb
Low level cloud: 7%
Mid level cloud: 53%
High level cloud: 12%
Most Significant Cloud Type: medium
73%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 07
Aug		03:00

ENE
ENE

 1 / 3 mph 67 / 67°F 86% 1015 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 27%
Most Significant Cloud Type: medium
28%
0.0 In
09:00

SSE
SSE

 5 / 11 mph 63 / 63°F 78% 1017 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 19%
Most Significant Cloud Type: medium
47%
0.0 In
15:00

SW
SW

 5 / 10 mph 72 / 76°F 72% 1012 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 18%
Most Significant Cloud Type: medium
24%
0.0 In
21:00

WNW
WNW

 1 / 3 mph 69 / 69°F 85% 1015 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 11%
Most Significant Cloud Type: medium
46%
0.0 In
Fri 08
Aug		03:00

WNW
WNW

 3 / 6 mph 64 / 64°F 91% 1014 mb
Low level cloud: 14%
Mid level cloud: 43%
High level cloud: 13%
Most Significant Cloud Type: medium
81%
0.0 In
09:00

SSE
SSE

 1 / 2 mph 64 / 64°F 84% 1017 mb
Low level cloud: 13%
Mid level cloud: 28%
High level cloud: 34%
Most Significant Cloud Type: low
26%
0.0 In
15:00

WSW
WSW

 6 / 12 mph 70 / 71°F 66% 1012 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.0 In
21:00

WNW
WNW

 2 / 5 mph 68 / 68°F 86% 1015 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 33%
Most Significant Cloud Type: medium
25%
0.0 In
Sat 09
Aug		03:00

SW
SW

 1 / 3 mph 64 / 64°F 92% 1015 mb
Low level cloud: 10%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
72%
0.0 In
09:00

S
S

 3 / 7 mph 62 / 62°F 84% 1017 mb
Low level cloud: 8%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
67%
0.1 In
15:00

S
S

 6 / 12 mph 69 / 69°F 75% 1013 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 20%
Most Significant Cloud Type: medium
30%
0.3 In
21:00

WSW
WSW

 1 / 3 mph 67 / 67°F 88% 1015 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: medium
49%
0.4 In
Sun 10
Aug		03:00

SW
SW

 2 / 5 mph 63 / 63°F 95% 1015 mb
Low level cloud: 46%
Mid level cloud: 43%
High level cloud: 2%
Most Significant Cloud Type: low
61%
0.5 In
09:00

SSW
SSW

 3 / 6 mph 63 / 64°F 85% 1017 mb
Low level cloud: 21%
Mid level cloud: 45%
High level cloud: 3%
Most Significant Cloud Type: low
36%
0.2 In
15:00

SW
SW

 4 / 9 mph 70 / 70°F 72% 1012 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 10%
Most Significant Cloud Type: medium
27%
0.2 In
21:00

WSW
WSW

 3 / 7 mph 63 / 63°F 94% 1015 mb
Low level cloud: 36%
Mid level cloud: 44%
High level cloud: 37%
Most Significant Cloud Type: low
55%
0.6 In
Mon 11
Aug		03:00

WNW
WNW

 3 / 7 mph 63 / 63°F 95% 1014 mb
Low level cloud: 39%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: low
58%
0.3 In
09:00

WSW
WSW

 3 / 7 mph 60 / 60°F 90% 1016 mb
Low level cloud: 55%
Mid level cloud: 50%
High level cloud: 9%
Most Significant Cloud Type: low
73%
0.2 In
15:00

WNW
WNW

 5 / 10 mph 64 / 64°F 86% 1014 mb
Low level cloud: 9%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
72%
0.2 In
21:00

SW
SW

 2 / 5 mph 62 / 62°F 96% 1015 mb
Low level cloud: 43%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: low
62%
0.6 In
Tue 12
Aug		03:00

WNW
WNW

 2 / 4 mph 62 / 62°F 91% 1014 mb
Low level cloud: 13%
Mid level cloud: 44%
High level cloud: 12%
Most Significant Cloud Type: medium
79%
0.0 In
09:00

WSW
WSW

 4 / 7 mph 62 / 62°F 86% 1016 mb
Low level cloud: 24%
Mid level cloud: 46%
High level cloud: 9%
Most Significant Cloud Type: low
41%
0.0 In
15:00

S
S

 5 / 11 mph 66 / 66°F 80% 1012 mb
Low level cloud: 2%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: medium
51%
0.2 In
21:00

W
W

 2 / 5 mph 67 / 67°F 90% 1015 mb
Low level cloud: 6%
Mid level cloud: 29%
High level cloud: 37%
Most Significant Cloud Type: medium
48%
0.3 In
Wed 13
Aug		03:00

SW
SW

 3 / 6 mph 61 / 61°F 92% 1015 mb
Low level cloud: 16%
Mid level cloud: 75%
High level cloud: 19%
Most Significant Cloud Type: medium
100%
0.2 In
09:00

WSW
WSW

 3 / 7 mph 63 / 63°F 82% 1018 mb
Low level cloud: 6%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
61%
0.0 In
15:00

WSW
WSW

 4 / 8 mph 68 / 68°F 75% 1013 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.1 In
21:00

SW
SW

 2 / 4 mph 67 / 67°F 90% 1016 mb
Low level cloud: 4%
Mid level cloud: 29%
High level cloud: 21%
Most Significant Cloud Type: medium
42%
0.4 In
Thu 14
Aug		03:00

WNW
WNW

 4 / 8 mph 64 / 64°F 93% 1016 mb
Low level cloud: 20%
Mid level cloud: 56%
High level cloud: 0%
Most Significant Cloud Type: low
39%
0.2 In
09:00

S
S

 2 / 4 mph 59 / 59°F 96% 1018 mb
Low level cloud: 71%
Mid level cloud: 51%
High level cloud: 32%
Most Significant Cloud Type: low
92%
0.6 In
15:00

W
W

 6 / 12 mph 70 / 70°F 70% 1013 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 1%
Most Significant Cloud Type: medium
26%
0.2 In
21:00

SW
SW

 2 / 4 mph 65 / 65°F 92% 1015 mb
Low level cloud: 10%
Mid level cloud: 30%
High level cloud: 27%
Most Significant Cloud Type: medium
60%
0.2 In
Fri 15
Aug		03:00

SW
SW

 2 / 5 mph 59 / 60°F 98% 1015 mb
Low level cloud: 71%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: low
99%
0.5 In
09:00

SE
SE

 1 / 3 mph 60 / 60°F 90% 1016 mb
Low level cloud: 27%
Mid level cloud: 66%
High level cloud: 100%
Most Significant Cloud Type: low
61%
0.2 In
15:00

SSW
SSW

 3 / 6 mph 61 / 61°F 92% 1015 mb
Low level cloud: 49%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
76%
0.5 In
21:00

W
W

 2 / 4 mph 64 / 64°F 93% 1015 mb
Low level cloud: 27%
Mid level cloud: 58%
High level cloud: 7%
Most Significant Cloud Type: low
48%
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