WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Saint Cyr Coetquidan 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Saint Cyr Coetquidan

France

Long range weather outlook for Saint Cyr Coetquidan includes 14 day forecast summary:

Over the next 14 days the Saint Cyr Coetquidan forecast suggests the average daytime maximum temperature will be around 18°C, with a high for the two weeks of 25°C expected on the afternoon of Saturday 11th. The mean minimum temperature will be 9°C, dipping to its lowest on the morning of Friday 3rd at 5°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. The indicators are that Friday 3rd will have the most precipitation with an accumulation of around 5.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 02
May
19:00

WSW
WSW

12 / 18 mph 55 / 51°F 77% 1010 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

8 / 14 mph 48 / 44°F 90% 1012 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 98%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 03
May
01:00

SW
SW

7 / 14 mph 45 / 41°F 94% 1012 mb
Low level cloud: 3%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

6 / 13 mph 42 / 38°F 94% 1012 mb
Low level cloud: 41%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

6 / 11 mph 45 / 41°F 94% 1013 mb
Low level cloud: 25%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

9 / 10 mph 57 / 53°F 72% 1013 mb
Low level cloud: 56%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

10 / 13 mph 60 / 59°F 62% 1012 mb
Low level cloud: 68%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

12 / 17 mph 60 / 56°F 68% 1012 mb
Low level cloud: 41%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

WSW
WSW

9 / 12 mph 56 / 53°F 82% 1012 mb
Low level cloud: 10%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
22:00

SW
SW

7 / 15 mph 47 / 43°F 94% 1014 mb
Low level cloud: 3%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 04
May
01:00

SSW
SSW

4 / 9 mph 45 / 43°F 94% 1013 mb
Low level cloud: 8%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSE
SSE

4 / 9 mph 42 / 40°F 95% 1012 mb
Low level cloud: 14%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SE
SE

6 / 11 mph 44 / 40°F 96% 1013 mb
Low level cloud: 34%
Mid level cloud: 4%
High level cloud: 16%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSE
SSE

11 / 12 mph 56 / 53°F 80% 1012 mb
Low level cloud: 74%
Mid level cloud: 18%
High level cloud: 10%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

13 / 16 mph 55 / 51°F 77% 1012 mb
Low level cloud: 2%
Mid level cloud: 77%
High level cloud: 32%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

10 / 13 mph 53 / 50°F 86% 1011 mb
Low level cloud: 84%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

10 / 15 mph 53 / 50°F 89% 1010 mb
Low level cloud: 96%
Mid level cloud: 44%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

8 / 12 mph 53 / 50°F 98% 1010 mb
Low level cloud: 95%
Mid level cloud: 44%
High level cloud: 41%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May
01:00

SW
SW

6 / 10 mph 53 / 51°F 98% 1009 mb
Low level cloud: 83%
Mid level cloud: 79%
High level cloud: 57%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

6 / 12 mph 48 / 45°F 97% 1009 mb
Low level cloud: 34%
Mid level cloud: 27%
High level cloud: 55%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

S
S

6 / 11 mph 49 / 46°F 98% 1009 mb
Low level cloud: 97%
Mid level cloud: 11%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

12 / 15 mph 57 / 53°F 78% 1009 mb
Low level cloud: 29%
Mid level cloud: 24%
High level cloud: 93%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

16 / 19 mph 63 / 61°F 59% 1008 mb
Low level cloud: 52%
Mid level cloud: 44%
High level cloud: 3%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

17 / 20 mph 62 / 60°F 63% 1007 mb
Low level cloud: 50%
Mid level cloud: 27%
High level cloud: 9%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

14 / 19 mph 55 / 51°F 84% 1006 mb
Low level cloud: 21%
Mid level cloud: 22%
High level cloud: 13%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

11 / 19 mph 48 / 43°F 95% 1007 mb
Low level cloud: 52%
Mid level cloud: 23%
High level cloud: 16%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 06
May
01:00

SSW
SSW

12 / 21 mph 48 / 42°F 96% 1006 mb
Low level cloud: 84%
Mid level cloud: 22%
High level cloud: 1%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

14 / 23 mph 48 / 43°F 92% 1005 mb
Low level cloud: 79%
Mid level cloud: 23%
High level cloud: 1%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

12 / 18 mph 51 / 46°F 85% 1006 mb
Low level cloud: 91%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

13 / 16 mph 54 / 50°F 77% 1008 mb
Low level cloud: 80%
Mid level cloud: 28%
High level cloud: 2%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WNW
WNW

14 / 17 mph 59 / 55°F 69% 1009 mb
Low level cloud: 46%
Mid level cloud: 18%
High level cloud: 2%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

11 / 16 mph 59 / 56°F 74% 1010 mb
Low level cloud: 48%
Mid level cloud: 46%
High level cloud: 9%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

9 / 14 mph 57 / 54°F 83% 1011 mb
Low level cloud: 17%
Mid level cloud: 45%
High level cloud: 29%
Most Significant Cloud Type: low
35%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
22:00

W
W

6 / 13 mph 50 / 47°F 93% 1013 mb
Low level cloud: 13%
Mid level cloud: 32%
High level cloud: 9%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 07
May
01:00

W
W

9 / 16 mph 47 / 43°F 97% 1015 mb
Low level cloud: 64%
Mid level cloud: 54%
High level cloud: 12%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WNW
WNW

10 / 15 mph 50 / 47°F 94% 1015 mb
Low level cloud: 64%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

10 / 15 mph 51 / 47°F 94% 1016 mb
Low level cloud: 100%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

13 / 16 mph 54 / 50°F 87% 1018 mb
Low level cloud: 92%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNW
NNW

15 / 17 mph 58 / 55°F 77% 1019 mb
Low level cloud: 91%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

15 / 18 mph 62 / 60°F 72% 1020 mb
Low level cloud: 68%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

15 / 19 mph 58 / 54°F 83% 1022 mb
Low level cloud: 39%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

N
N

8 / 14 mph 51 / 48°F 95% 1024 mb
Low level cloud: 8%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May
01:00

NNE
NNE

7 / 16 mph 48 / 45°F 96% 1025 mb
Low level cloud: 11%
Mid level cloud: 4%
High level cloud: 5%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

N
N

7 / 15 mph 47 / 43°F 96% 1026 mb
Low level cloud: 26%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

6 / 11 mph 49 / 46°F 94% 1027 mb
Low level cloud: 9%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

9 / 10 mph 62 / 60°F 73% 1027 mb
Low level cloud: 13%
Mid level cloud: 4%
High level cloud: 14%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

9 / 10 mph 66 / 66°F 65% 1027 mb
Low level cloud: 96%
Mid level cloud: 9%
High level cloud: 78%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNE
NNE

8 / 10 mph 67 / 64°F 76% 1026 mb
Low level cloud: 40%
Mid level cloud: 8%
High level cloud: 93%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

7 / 9 mph 66 / 64°F 83% 1026 mb
Low level cloud: 29%
Mid level cloud: 15%
High level cloud: 100%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NE
NE

7 / 15 mph 55 / 53°F 94% 1027 mb
Low level cloud: 14%
Mid level cloud: 27%
High level cloud: 5%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 09
May
01:00

E
E

3 / 6 mph 55 / 56°F 94% 1019 mb
Low level cloud: 27%
Mid level cloud: 35%
High level cloud: 100%
Most Significant Cloud Type: low
51%
0.0 In
07:00

NNE
NNE

6 / 12 mph 57 / 56°F 91% 1022 mb
Low level cloud: 8%
Mid level cloud: 4%
High level cloud: 99%
Most Significant Cloud Type: medium
30%
0.0 In
13:00

ENE
ENE

11 / 23 mph 71 / 71°F 62% 1026 mb
Low level cloud: 15%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.0 In
19:00

N
N

10 / 21 mph 65 / 65°F 81% 1019 mb
Low level cloud: 16%
Mid level cloud: 0%
High level cloud: 87%
Most Significant Cloud Type: low
26%
0.0 In
Fri 10
May
01:00

E
E

5 / 11 mph 56 / 55°F 83% 1016 mb
Low level cloud: 0%
Mid level cloud: 54%
High level cloud: 0%
Most Significant Cloud Type: medium
53%
0.0 In
07:00

ENE
ENE

7 / 15 mph 49 / 46°F 86% 1026 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

E
E

15 / 31 mph 66 / 66°F 61% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
19:00

E
E

8 / 16 mph 71 / 71°F 79% 1013 mb
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 28%
Most Significant Cloud Type: medium
49%
0.0 In
Sat 11
May
01:00

ENE
ENE

5 / 11 mph 63 / 63°F 93% 1014 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 92%
Most Significant Cloud Type: medium
15%
0.0 In
07:00

E
E

5 / 10 mph 60 / 60°F 92% 1014 mb
Low level cloud: 8%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
9%
0.0 In
13:00

SE
SE

4 / 7 mph 76 / 79°F 68% 1013 mb
Low level cloud: 35%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
36%
0.0 In
19:00

SW
SW

5 / 10 mph 73 / 77°F 82% 1013 mb
Low level cloud: 21%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
Sun 12
May
01:00

NW
NW

4 / 10 mph 63 / 63°F 94% 1014 mb
Low level cloud: 5%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: low
12%
0.0 In
07:00

W
W

3 / 6 mph 61 / 61°F 94% 1015 mb
Low level cloud: 38%
Mid level cloud: 9%
High level cloud: 1%
Most Significant Cloud Type: low
41%
0.0 In
13:00

SSW
SSW

5 / 11 mph 71 / 71°F 71% 1013 mb
Low level cloud: 97%
Mid level cloud: 11%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.0 In
19:00

SW
SW

9 / 18 mph 69 / 69°F 79% 1015 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 99%
Most Significant Cloud Type: medium
11%
0.0 In
Mon 13
May
01:00

SSW
SSW

9 / 19 mph 57 / 55°F 93% 1009 mb
Low level cloud: 41%
Mid level cloud: 39%
High level cloud: 22%
Most Significant Cloud Type: low
57%
0.1 In
07:00

NNE
NNE

3 / 6 mph 59 / 60°F 84% 1012 mb
Low level cloud: 0%
Mid level cloud: 92%
High level cloud: 99%
Most Significant Cloud Type: medium
95%
0.0 In
13:00

SSW
SSW

18 / 37 mph 62 / 62°F 70% 1005 mb
Low level cloud: 88%
Mid level cloud: 74%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
19:00

NW
NW

6 / 13 mph 61 / 61°F 94% 1008 mb
Low level cloud: 76%
Mid level cloud: 12%
High level cloud: 100%
Most Significant Cloud Type: low
91%
0.3 In
Tue 14
May
01:00

SSW
SSW

17 / 36 mph 53 / 47°F 76% 1004 mb
Low level cloud: 81%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
81%
0.0 In
07:00

S
S

2 / 5 mph 54 / 55°F 95% 1007 mb
Low level cloud: 55%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
82%
0.0 In
13:00

SSW
SSW

26 / 54 mph 58 / 53°F 66% 1002 mb
Low level cloud: 81%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
92%
0.0 In
19:00

W
W

11 / 23 mph 56 / 54°F 97% 1000 mb
Low level cloud: 87%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.3 In
Wed 15
May
01:00

SSW
SSW

23 / 49 mph 52 / 46°F 96% 999 mb
Low level cloud: 100%
Mid level cloud: 86%
High level cloud: 85%
Most Significant Cloud Type: low
100%
0.1 In
07:00

S
S

11 / 22 mph 51 / 47°F 96% 1000 mb
Low level cloud: 82%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
13:00

SW
SW

22 / 46 mph 54 / 49°F 93% 999 mb
Low level cloud: 100%
Mid level cloud: 90%
High level cloud: 99%
Most Significant Cloud Type: low
100%
0.2 In
19:00

WSW
WSW

17 / 36 mph 55 / 51°F 79% 1003 mb
Low level cloud: 23%
Mid level cloud: 12%
High level cloud: 32%
Most Significant Cloud Type: low
31%
0.2 In
Thu 16
May
01:00

SW
SW

16 / 33 mph 52 / 47°F 94% 1002 mb
Low level cloud: 98%
Mid level cloud: 93%
High level cloud: 22%
Most Significant Cloud Type: low
100%
0.1 In
07:00

SSW
SSW

11 / 23 mph 51 / 47°F 93% 1005 mb
Low level cloud: 39%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: low
52%
0.0 In
13:00

SSW
SSW

11 / 22 mph 53 / 50°F 95% 1002 mb
Low level cloud: 73%
Mid level cloud: 75%
High level cloud: 67%
Most Significant Cloud Type: low
100%
0.2 In
19:00

SSW
SSW

15 / 31 mph 55 / 51°F 91% 1004 mb
Low level cloud: 58%
Mid level cloud: 23%
High level cloud: 2%
Most Significant Cloud Type: low
66%
0.2 In
Fri 17
May
01:00

WSW
WSW

7 / 14 mph 53 / 51°F 94% 1003 mb
Low level cloud: 18%
Mid level cloud: 100%
High level cloud: 6%
Most Significant Cloud Type: medium
100%
0.1 In
07:00

SSE
SSE

14 / 29 mph 51 / 46°F 96% 1003 mb
Low level cloud: 98%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
13:00

WSW
WSW

17 / 35 mph 63 / 63°F 67% 1007 mb
Low level cloud: 92%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
19:00

S
S

13 / 27 mph 55 / 51°F 93% 1001 mb
Low level cloud: 95%
Mid level cloud: 44%
High level cloud: 22%
Most Significant Cloud Type: low
100%
0.2 In

Other Locations Near to Saint Cyr Coetquidan

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