WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Gortavadda Bridge 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Gortavadda Bridge

Cork, Ireland

Long range weather outlook for Gortavadda Bridge includes 14 day forecast summary:

Reviewing the forecast for Gortavadda Bridge Over the next 14 days and 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 19th. The mean minimum temperature will be 9°C, dipping to its lowest on the morning of Friday 24th at 5°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. Predictions are Saturday 25th will have the most precipitation with an accumulation of around 22.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 19
May
18:00

SE
SE

3 / 4 mph 67 / 64°F 86% 1016 mb
Low level cloud: 4%
Mid level cloud: 20%
High level cloud: 75%
Most Significant Cloud Type: medium
33%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

SE
SE

3 / 6 mph 57 / 56°F 95% 1017 mb
Low level cloud: 7%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: low
13%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Mon 20
May
00:00

N
N

1 / 2 mph 53 / 53°F 95% 1016 mb
Low level cloud: 18%
Mid level cloud: 5%
High level cloud: 3%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

2 / 4 mph 51 / 52°F 95% 1016 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

3 / 6 mph 53 / 51°F 92% 1015 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

E
E

6 / 7 mph 63 / 60°F 81% 1015 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

9 / 10 mph 66 / 64°F 74% 1014 mb
Low level cloud: 6%
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
15:00

SE
SE

8 / 9 mph 66 / 64°F 66% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

5 / 6 mph 63 / 60°F 71% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
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

SSW
SSW

2 / 3 mph 53 / 52°F 86% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 70%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

NW
NW

2 / 3 mph 48 / 48°F 83% 1012 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 32%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

2 / 4 mph 46 / 46°F 82% 1011 mb
Low level cloud: 0%
Mid level cloud: 59%
High level cloud: 5%
Most Significant Cloud Type: medium
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

2 / 4 mph 52 / 51°F 76% 1011 mb
Low level cloud: 0%
Mid level cloud: 93%
High level cloud: 0%
Most Significant Cloud Type: medium
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

2 / 3 mph 59 / 58°F 68% 1011 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

4 / 4 mph 64 / 61°F 62% 1010 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 4%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

7 / 9 mph 65 / 64°F 62% 1009 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 6%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

5 / 7 mph 63 / 60°F 84% 1009 mb
Low level cloud: 40%
Mid level cloud: 12%
High level cloud: 5%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

7 / 14 mph 54 / 50°F 95% 1010 mb
Low level cloud: 42%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
00:00

NW
NW

8 / 12 mph 51 / 49°F 94% 1010 mb
Low level cloud: 24%
Mid level cloud: 18%
High level cloud: 91%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

7 / 13 mph 48 / 44°F 96% 1011 mb
Low level cloud: 60%
Mid level cloud: 20%
High level cloud: 57%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

12 / 18 mph 49 / 44°F 90% 1012 mb
Low level cloud: 85%
Mid level cloud: 15%
High level cloud: 32%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

14 / 17 mph 56 / 51°F 75% 1013 mb
Low level cloud: 63%
Mid level cloud: 18%
High level cloud: 9%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

18 / 21 mph 57 / 53°F 73% 1013 mb
Low level cloud: 75%
Mid level cloud: 25%
High level cloud: 3%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

18 / 21 mph 54 / 49°F 81% 1014 mb
Low level cloud: 89%
Mid level cloud: 12%
High level cloud: 41%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

18 / 24 mph 52 / 47°F 79% 1016 mb
Low level cloud: 70%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

16 / 22 mph 50 / 44°F 78% 1018 mb
Low level cloud: 56%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
00:00

NW
NW

15 / 23 mph 47 / 41°F 85% 1019 mb
Low level cloud: 63%
Mid level cloud: 13%
High level cloud: 2%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

14 / 20 mph 48 / 43°F 81% 1020 mb
Low level cloud: 69%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

13 / 18 mph 49 / 43°F 84% 1021 mb
Low level cloud: 75%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

11 / 12 mph 53 / 49°F 78% 1021 mb
Low level cloud: 62%
Mid level cloud: 42%
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

N
N

7 / 9 mph 55 / 53°F 70% 1022 mb
Low level cloud: 88%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

5 / 6 mph 56 / 54°F 70% 1022 mb
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 6%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

2 / 3 mph 57 / 57°F 73% 1021 mb
Low level cloud: 59%
Mid level cloud: 43%
High level cloud: 12%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

3 / 6 mph 50 / 49°F 90% 1022 mb
Low level cloud: 30%
Mid level cloud: 8%
High level cloud: 62%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May
00:00

S
S

3 / 6 mph 46 / 46°F 92% 1021 mb
Low level cloud: 52%
Mid level cloud: 5%
High level cloud: 29%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

3 / 7 mph 45 / 44°F 93% 1020 mb
Low level cloud: 45%
Mid level cloud: 13%
High level cloud: 71%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

5 / 8 mph 50 / 47°F 92% 1019 mb
Low level cloud: 40%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

12 / 14 mph 55 / 52°F 81% 1019 mb
Low level cloud: 67%
Mid level cloud: 49%
High level cloud: 99%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

14 / 16 mph 58 / 54°F 76% 1018 mb
Low level cloud: 49%
Mid level cloud: 64%
High level cloud: 28%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

13 / 18 mph 54 / 49°F 85% 1017 mb
Low level cloud: 46%
Mid level cloud: 67%
High level cloud: 1%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

13 / 19 mph 53 / 49°F 80% 1016 mb
Low level cloud: 17%
Mid level cloud: 94%
High level cloud: 91%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

15 / 21 mph 53 / 48°F 81% 1016 mb
Low level cloud: 47%
Mid level cloud: 60%
High level cloud: 91%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 25
May
00:00

S
S

16 / 24 mph 51 / 46°F 94% 1015 mb
Low level cloud: 66%
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
03:00

SSE
SSE

17 / 26 mph 51 / 46°F 95% 1012 mb
Low level cloud: 74%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

SSE
SSE

19 / 29 mph 52 / 47°F 96% 1010 mb
Low level cloud: 95%
Mid level cloud: 87%
High level cloud: 68%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

SSE
SSE

21 / 31 mph 53 / 47°F 98% 1007 mb
Low level cloud: 100%
Mid level cloud: 76%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.4 In of precipitation over the past 3 hours.
0.4 In
12:00

SSW
SSW

13 / 16 mph 59 / 56°F 87% 1007 mb
Low level cloud: 51%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

W
W

8 / 10 mph 62 / 60°F 77% 1007 mb
Low level cloud: 32%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

11 / 14 mph 60 / 59°F 76% 1008 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

7 / 13 mph 50 / 46°F 95% 1010 mb
Low level cloud: 5%
Mid level cloud: 9%
High level cloud: 64%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 26
May
00:00

SE
SE

6 / 12 mph 53 / 51°F 97% 1009 mb
Low level cloud: 78%
Mid level cloud: 57%
High level cloud: 1%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSE
SSE

5 / 11 mph 54 / 52°F 98% 1013 mb
Low level cloud: 74%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NNW
NNW

11 / 23 mph 57 / 55°F 72% 1009 mb
Low level cloud: 21%
Mid level cloud: 44%
High level cloud: 9%
Most Significant Cloud Type: low
37%
0.0 In
18:00

E
E

5 / 11 mph 60 / 60°F 90% 1010 mb
Low level cloud: 58%
Mid level cloud: 54%
High level cloud: 100%
Most Significant Cloud Type: low
88%
0.0 In
Mon 27
May
00:00

SSW
SSW

7 / 14 mph 50 / 47°F 92% 1011 mb
Low level cloud: 9%
Mid level cloud: 46%
High level cloud: 13%
Most Significant Cloud Type: medium
71%
0.0 In
06:00

NNE
NNE

7 / 15 mph 55 / 53°F 95% 1020 mb
Low level cloud: 66%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
76%
0.0 In
12:00

NNE
NNE

3 / 6 mph 65 / 65°F 67% 1020 mb
Low level cloud: 67%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
68%
0.0 In
18:00

NW
NW

8 / 17 mph 60 / 60°F 71% 1020 mb
Low level cloud: 7%
Mid level cloud: 43%
High level cloud: 7%
Most Significant Cloud Type: medium
64%
0.0 In
Tue 28
May
00:00

NW
NW

6 / 13 mph 51 / 49°F 97% 1010 mb
Low level cloud: 15%
Mid level cloud: 5%
High level cloud: 7%
Most Significant Cloud Type: low
17%
0.0 In
06:00

N
N

2 / 5 mph 51 / 52°F 85% 1020 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: medium
43%
0.0 In
12:00

SW
SW

4 / 9 mph 63 / 63°F 74% 1010 mb
Low level cloud: 48%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
55%
0.0 In
18:00

SE
SE

5 / 11 mph 59 / 58°F 76% 1018 mb
Low level cloud: 23%
Mid level cloud: 23%
High level cloud: 53%
Most Significant Cloud Type: low
37%
0.0 In
Wed 29
May
00:00

W
W

2 / 5 mph 52 / 53°F 95% 1010 mb
Low level cloud: 50%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: low
67%
0.1 In
06:00

ENE
ENE

5 / 11 mph 51 / 49°F 95% 1016 mb
Low level cloud: 32%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
59%
0.0 In
12:00

SE
SE

6 / 12 mph 59 / 59°F 90% 1010 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.0 In
18:00

ESE
ESE

10 / 20 mph 58 / 56°F 85% 1013 mb
Low level cloud: 36%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
80%
0.0 In
Thu 30
May
00:00

W
W

3 / 6 mph 56 / 57°F 93% 1013 mb
Low level cloud: 2%
Mid level cloud: 7%
High level cloud: 52%
Most Significant Cloud Type: medium
15%
0.1 In
06:00

ENE
ENE

6 / 13 mph 54 / 52°F 97% 1010 mb
Low level cloud: 61%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

9 / 18 mph 62 / 62°F 70% 1016 mb
Low level cloud: 10%
Mid level cloud: 44%
High level cloud: 34%
Most Significant Cloud Type: medium
73%
0.0 In
18:00

E
E

8 / 17 mph 57 / 56°F 95% 1009 mb
Low level cloud: 67%
Mid level cloud: 60%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
Fri 31
May
00:00

SE
SE

15 / 32 mph 55 / 51°F 99% 1012 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.5 In
06:00

NNE
NNE

2 / 4 mph 55 / 56°F 98% 1007 mb
Low level cloud: 70%
Mid level cloud: 99%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.1 In
12:00

SSW
SSW

10 / 21 mph 59 / 56°F 97% 1011 mb
Low level cloud: 92%
Mid level cloud: 73%
High level cloud: 61%
Most Significant Cloud Type: low
100%
0.4 In
18:00

SSE
SSE

5 / 11 mph 57 / 56°F 94% 1009 mb
Low level cloud: 53%
Mid level cloud: 55%
High level cloud: 92%
Most Significant Cloud Type: low
83%
0.3 In
Sat 01
Jun
00:00

S
S

15 / 33 mph 58 / 54°F 98% 1009 mb
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
06:00

NNW
NNW

2 / 5 mph 52 / 53°F 95% 1011 mb
Low level cloud: 24%
Mid level cloud: 7%
High level cloud: 33%
Most Significant Cloud Type: low
30%
0.0 In
12:00

SW
SW

14 / 29 mph 60 / 60°F 81% 1010 mb
Low level cloud: 60%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
66%
0.2 In
18:00

WSW
WSW

3 / 7 mph 60 / 60°F 89% 1010 mb
Low level cloud: 39%
Mid level cloud: 95%
High level cloud: 100%
Most Significant Cloud Type: low
84%
0.0 In
Sun 02
Jun
00:00

SW
SW

9 / 18 mph 48 / 44°F 93% 1011 mb
Low level cloud: 16%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
90%
0.0 In
06:00

NNE
NNE

3 / 6 mph 53 / 53°F 97% 1010 mb
Low level cloud: 61%
Mid level cloud: 21%
High level cloud: 12%
Most Significant Cloud Type: low
69%
0.0 In
12:00

WSW
WSW

17 / 35 mph 60 / 60°F 75% 1011 mb
Low level cloud: 54%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.0 In
18:00

SW
SW

7 / 14 mph 53 / 51°F 96% 1009 mb
Low level cloud: 67%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
Mon 03
Jun
00:00

WSW
WSW

15 / 32 mph 51 / 46°F 86% 1009 mb
Low level cloud: 70%
Mid level cloud: 17%
High level cloud: 57%
Most Significant Cloud Type: low
83%
0.0 In
06:00

SSE
SSE

4 / 9 mph 52 / 52°F 95% 1007 mb
Low level cloud: 66%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: low
77%
0.0 In
12:00

WNW
WNW

20 / 41 mph 60 / 60°F 69% 1009 mb
Low level cloud: 31%
Mid level cloud: 10%
High level cloud: 1%
Most Significant Cloud Type: low
34%
0.1 In
18:00

ESE
ESE

9 / 20 mph 58 / 56°F 90% 1005 mb
Low level cloud: 86%
Mid level cloud: 26%
High level cloud: 37%
Most Significant Cloud Type: low
99%
0.1 In

Other Locations Near to Gortavadda Bridge

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