WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Provadiya 14 Day Long Range Forecast

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

Bulgaria

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

The outlook for Provadiya in the two weeks ahead shows the average daytime maximum temperature will be around 12°C, with a high for the two weeks of 13°C expected on the afternoon of Thursday 25th. The average minimum temperature will be 6°C, dipping to its lowest on the morning of Tuesday 16th at 5°C. The fortnight ahead will remain predominantly dry. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 16
Dec
20:00

ENE
ENE

5 / 5 mph 49 / 47°F 62% 1028 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
23:00

NNE
NNE

3 / 4 mph 46 / 46°F 68% 1029 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
Wed 17
Dec
02:00

NE
NE

1 / 2 mph 44 / 44°F 77% 1028 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NW
NW

1 / 2 mph 42 / 42°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
08:00

SE
SE

3 / 5 mph 42 / 41°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
11:00

SSE
SSE

5 / 6 mph 51 / 49°F 73% 1029 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
14:00

S
S

9 / 10 mph 53 / 50°F 69% 1028 mb
Low level cloud: 1%
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
17:00

S
S

6 / 8 mph 50 / 48°F 84% 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
20:00

S
S

6 / 10 mph 47 / 44°F 87% 1028 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
23:00

SSW
SSW

5 / 9 mph 46 / 43°F 87% 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
Thu 18
Dec
02:00

SSW
SSW

3 / 5 mph 44 / 43°F 84% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 98%
Most Significant Cloud Type: high
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

W
W

4 / 8 mph 43 / 41°F 77% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

WNW
WNW

4 / 9 mph 42 / 39°F 70% 1029 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: high
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

W
W

3 / 4 mph 51 / 50°F 52% 1029 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 6%
Most Significant Cloud Type: high
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

WNW
WNW

4 / 4 mph 55 / 55°F 48% 1028 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 12%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

WNW
WNW

5 / 9 mph 51 / 49°F 59% 1028 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 7%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NW
NW

5 / 9 mph 48 / 46°F 65% 1029 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 39%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NW
NW

5 / 10 mph 46 / 44°F 65% 1029 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 19
Dec
02:00

NNW
NNW

3 / 7 mph 45 / 44°F 61% 1029 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNW
NNW

2 / 5 mph 45 / 45°F 57% 1028 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NNE
NNE

3 / 7 mph 45 / 44°F 58% 1028 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 21%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NE
NE

4 / 5 mph 52 / 50°F 52% 1028 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 4%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

4 / 5 mph 53 / 52°F 51% 1027 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 17%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

E
E

4 / 6 mph 48 / 47°F 69% 1027 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 20%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NE
NE

5 / 8 mph 47 / 44°F 76% 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
23:00

NNE
NNE

4 / 8 mph 45 / 43°F 76% 1026 mb
Low level cloud: 0%
Mid level cloud: 50%
High level cloud: 100%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 20
Dec
02:00

NNE
NNE

5 / 9 mph 45 / 42°F 75% 1025 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNE
NNE

5 / 9 mph 44 / 42°F 82% 1024 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NNE
NNE

5 / 9 mph 44 / 41°F 90% 1023 mb
Low level cloud: 22%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NE
NE

6 / 7 mph 50 / 47°F 83% 1023 mb
Low level cloud: 56%
Mid level cloud: 25%
High level cloud: 88%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NE
NE

8 / 9 mph 53 / 49°F 74% 1021 mb
Low level cloud: 43%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NE
NE

8 / 13 mph 48 / 44°F 83% 1021 mb
Low level cloud: 25%
Mid level cloud: 19%
High level cloud: 9%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNE
NNE

7 / 11 mph 45 / 41°F 88% 1021 mb
Low level cloud: 13%
Mid level cloud: 12%
High level cloud: 34%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

N
N

6 / 10 mph 44 / 41°F 91% 1021 mb
Low level cloud: 55%
Mid level cloud: 11%
High level cloud: 83%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 21
Dec
02:00

N
N

7 / 11 mph 45 / 41°F 91% 1021 mb
Low level cloud: 66%
Mid level cloud: 51%
High level cloud: 88%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

N
N

6 / 11 mph 44 / 40°F 90% 1020 mb
Low level cloud: 69%
Mid level cloud: 100%
High level cloud: 72%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

N
N

6 / 10 mph 45 / 42°F 90% 1021 mb
Low level cloud: 64%
Mid level cloud: 95%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NNE
NNE

9 / 11 mph 49 / 45°F 77% 1021 mb
Low level cloud: 80%
Mid level cloud: 57%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NE
NE

8 / 9 mph 51 / 48°F 71% 1020 mb
Low level cloud: 62%
Mid level cloud: 22%
High level cloud: 34%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNE
NNE

8 / 9 mph 50 / 47°F 76% 1021 mb
Low level cloud: 24%
Mid level cloud: 100%
High level cloud: 71%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNE
NNE

7 / 8 mph 48 / 45°F 85% 1021 mb
Low level cloud: 12%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

N
N

5 / 6 mph 47 / 44°F 87% 1022 mb
Low level cloud: 6%
Mid level cloud: 46%
High level cloud: 19%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 22
Dec
02:00

N
N

5 / 9 mph 42 / 39°F 86% 1022 mb
Low level cloud: 10%
Mid level cloud: 81%
High level cloud: 6%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNW
NNW

5 / 9 mph 41 / 38°F 86% 1021 mb
Low level cloud: 9%
Mid level cloud: 44%
High level cloud: 7%
Most Significant Cloud Type: medium
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NNW
NNW

4 / 7 mph 41 / 38°F 84% 1021 mb
Low level cloud: 25%
Mid level cloud: 32%
High level cloud: 9%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NNW
NNW

2 / 3 mph 48 / 48°F 72% 1021 mb
Low level cloud: 19%
Mid level cloud: 46%
High level cloud: 13%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ESE
ESE

1 / 1 mph 51 / 51°F 67% 1020 mb
Low level cloud: 16%
Mid level cloud: 51%
High level cloud: 12%
Most Significant Cloud Type: medium
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SE
SE

1 / 2 mph 48 / 48°F 75% 1020 mb
Low level cloud: 39%
Mid level cloud: 82%
High level cloud: 8%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SE
SE

2 / 2 mph 48 / 48°F 78% 1020 mb
Low level cloud: 70%
Mid level cloud: 69%
High level cloud: 4%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ESE
ESE

0 / 1 mph 48 / 48°F 83% 1020 mb
Low level cloud: 85%
Mid level cloud: 55%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 23
Dec
02:00

ENE
ENE

3 / 4 mph 52 / 53°F 94% 1019 mb
Low level cloud: 47%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
56%
0.0 In
08:00

NW
NW

4 / 6 mph 37 / 33°F 83% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
14:00

ENE
ENE

5 / 8 mph 51 / 49°F 69% 1023 mb
Low level cloud: 31%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: low
51%
0.0 In
20:00

E
E

5 / 9 mph 51 / 49°F 89% 1027 mb
Low level cloud: 51%
Mid level cloud: 28%
High level cloud: 32%
Most Significant Cloud Type: low
64%
0.0 In
Wed 24
Dec
02:00

SSE
SSE

10 / 17 mph 51 / 47°F 93% 1015 mb
Low level cloud: 80%
Mid level cloud: 56%
High level cloud: 39%
Most Significant Cloud Type: low
100%
0.0 In
08:00

WSW
WSW

5 / 10 mph 43 / 40°F 88% 1015 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 32%
Most Significant Cloud Type: medium
25%
0.0 In
14:00

SSW
SSW

8 / 9 mph 53 / 50°F 67% 1018 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 1%
Most Significant Cloud Type: medium
13%
0.0 In
20:00

SSE
SSE

9 / 15 mph 50 / 47°F 93% 1017 mb
Low level cloud: 97%
Mid level cloud: 100%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.0 In
Thu 25
Dec
02:00

WNW
WNW

4 / 6 mph 51 / 49°F 85% 1019 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 32%
Most Significant Cloud Type: medium
15%
0.0 In
08:00

WNW
WNW

4 / 7 mph 51 / 50°F 91% 1019 mb
Low level cloud: 72%
Mid level cloud: 14%
High level cloud: 78%
Most Significant Cloud Type: low
86%
0.1 In
14:00

NW
NW

1 / 1 mph 61 / 61°F 61% 1020 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: medium
17%
0.0 In
20:00

NNW
NNW

6 / 9 mph 53 / 52°F 89% 1022 mb
Low level cloud: 48%
Mid level cloud: 36%
High level cloud: 9%
Most Significant Cloud Type: low
61%
0.0 In
Fri 26
Dec
02:00

N
N

4 / 6 mph 50 / 49°F 76% 1022 mb
Low level cloud: 42%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: low
88%
0.0 In
08:00

NE
NE

19 / 29 mph 49 / 42°F 93% 1025 mb
Low level cloud: 96%
Mid level cloud: 32%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.0 In
14:00

NNE
NNE

11 / 13 mph 49 / 45°F 73% 1024 mb
Low level cloud: 94%
Mid level cloud: 72%
High level cloud: 84%
Most Significant Cloud Type: low
100%
0.0 In
20:00

NE
NE

20 / 31 mph 44 / 35°F 81% 1030 mb
Low level cloud: 92%
Mid level cloud: 7%
High level cloud: 14%
Most Significant Cloud Type: low
96%
0.0 In
Sat 27
Dec
02:00

NNE
NNE

12 / 15 mph 41 / 35°F 82% 1027 mb
Low level cloud: 96%
Mid level cloud: 27%
High level cloud: 21%
Most Significant Cloud Type: low
100%
0.0 In
08:00

NNE
NNE

15 / 24 mph 40 / 31°F 80% 1028 mb
Low level cloud: 81%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: low
82%
0.0 In
14:00

NNE
NNE

14 / 18 mph 46 / 40°F 84% 1022 mb
Low level cloud: 91%
Mid level cloud: 10%
High level cloud: 5%
Most Significant Cloud Type: low
95%
0.0 In
20:00

NE
NE

18 / 29 mph 42 / 33°F 68% 1027 mb
Low level cloud: 83%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: low
86%
0.0 In
Sun 28
Dec
02:00

NE
NE

7 / 13 mph 41 / 36°F 85% 1016 mb
Low level cloud: 46%
Mid level cloud: 100%
High level cloud: 52%
Most Significant Cloud Type: low
87%
0.0 In
08:00

NNE
NNE

14 / 22 mph 41 / 34°F 81% 1026 mb
Low level cloud: 98%
Mid level cloud: 4%
High level cloud: 48%
Most Significant Cloud Type: low
100%
0.0 In
14:00

E
E

5 / 6 mph 46 / 44°F 88% 1010 mb
Low level cloud: 98%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
20:00

NNE
NNE

13 / 22 mph 43 / 36°F 75% 1025 mb
Low level cloud: 96%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
Mon 29
Dec
02:00

N
N

7 / 11 mph 42 / 38°F 90% 1010 mb
Low level cloud: 99%
Mid level cloud: 50%
High level cloud: 72%
Most Significant Cloud Type: low
100%
0.1 In
08:00

NNW
NNW

7 / 12 mph 39 / 33°F 80% 1024 mb
Low level cloud: 55%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
14:00

N
N

11 / 13 mph 46 / 41°F 72% 1013 mb
Low level cloud: 95%
Mid level cloud: 100%
High level cloud: 86%
Most Significant Cloud Type: low
100%
0.0 In
20:00

NNW
NNW

7 / 12 mph 40 / 36°F 87% 1022 mb
Low level cloud: 82%
Mid level cloud: 54%
High level cloud: 69%
Most Significant Cloud Type: low
100%
0.0 In
Tue 30
Dec
02:00

NNW
NNW

9 / 11 mph 34 / 28°F 84% 1020 mb
Low level cloud: 52%
Mid level cloud: 46%
High level cloud: 42%
Most Significant Cloud Type: low
72%
0.0 In
08:00

NW
NW

7 / 12 mph 35 / 28°F 83% 1022 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 15%
Most Significant Cloud Type: medium
26%
0.0 In
14:00

NNE
NNE

8 / 11 mph 41 / 35°F 76% 1022 mb
Low level cloud: 90%
Mid level cloud: 44%
High level cloud: 21%
Most Significant Cloud Type: low
100%
0.0 In
20:00

NNW
NNW

6 / 11 mph 40 / 35°F 77% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 11%
Most Significant Cloud Type: high
10%
0.0 In
Wed 31
Dec
02:00

N
N

7 / 9 mph 32 / 26°F 76% 1024 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 8%
Most Significant Cloud Type: medium
46%
0.0 In
08:00

WNW
WNW

4 / 6 mph 37 / 34°F 74% 1016 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 95%
Most Significant Cloud Type: medium
10%
0.0 In
14:00

NNE
NNE

5 / 6 mph 39 / 36°F 46% 1020 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 49%
Most Significant Cloud Type: medium
48%
0.0 In
20:00

W
W

4 / 7 mph 39 / 36°F 67% 1012 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: medium
33%
0.0 In

Other Locations Near to Provadiya

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