Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Chioggia 14 Day Long Range Forecast

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

Italy

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

For Chioggia in the coming two weeks the average daytime maximum temperature will be around 27°C, with a high for the two weeks of 30°C expected on the afternoon of Saturday 20th. The mean minimum temperature will be 21°C, dipping to its lowest on the morning of Thursday 11th at 19°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. Predictions are Sunday 14th will have the most precipitation with an accumulation of around 10.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 11
Sep		22:00

S
S

 10 / 12 mph 76 / 78°F 65% 1014 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 6%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 12
Sep		01:00

SE
SE

 4 / 4 mph 74 / 77°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

 6 / 8 mph 70 / 70°F 74% 1015 mb
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 7 / 12 mph 71 / 69°F 79% 1016 mb
Low level cloud: 16%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 4 / 5 mph 75 / 77°F 74% 1017 mb
Low level cloud: 6%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

 6 / 7 mph 78 / 79°F 69% 1017 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ENE
ENE

 5 / 6 mph 79 / 80°F 70% 1017 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 5 / 6 mph 78 / 78°F 71% 1018 mb
Low level cloud: 3%
Mid level cloud: 25%
High level cloud: 38%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

 2 / 2 mph 73 / 77°F 72% 1019 mb
Low level cloud: 7%
Mid level cloud: 45%
High level cloud: 88%
Most Significant Cloud Type: medium
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 13
Sep		01:00

NNE
NNE

 6 / 9 mph 72 / 72°F 77% 1019 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 56%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NE
NE

 7 / 12 mph 70 / 70°F 75% 1018 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 8 / 13 mph 71 / 69°F 78% 1019 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 6 / 8 mph 76 / 77°F 71% 1019 mb
Low level cloud: 3%
Mid level cloud: 21%
High level cloud: 99%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 3 / 4 mph 80 / 80°F 66% 1019 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 10%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ESE
ESE

 4 / 4 mph 81 / 81°F 65% 1017 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

 5 / 6 mph 80 / 80°F 69% 1017 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 32%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 6 / 8 mph 74 / 77°F 71% 1017 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
Sun 14
Sep		01:00

W
W

 7 / 13 mph 68 / 68°F 89% 1016 mb
Low level cloud: 61%
Mid level cloud: 81%
High level cloud: 63%
Most Significant Cloud Type: low
97%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
04:00

N
N

 7 / 10 mph 66 / 66°F 88% 1015 mb
Low level cloud: 32%
Mid level cloud: 64%
High level cloud: 6%
Most Significant Cloud Type: low
54%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

N
N

 4 / 6 mph 67 / 66°F 85% 1016 mb
Low level cloud: 62%
Mid level cloud: 43%
High level cloud: 4%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WNW
WNW

 5 / 7 mph 71 / 69°F 73% 1016 mb
Low level cloud: 20%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

N
N

 2 / 2 mph 74 / 76°F 65% 1016 mb
Low level cloud: 57%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 8 / 11 mph 74 / 76°F 72% 1017 mb
Low level cloud: 38%
Mid level cloud: 14%
High level cloud: 9%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 6 / 9 mph 74 / 76°F 73% 1018 mb
Low level cloud: 4%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

 8 / 14 mph 69 / 69°F 70% 1020 mb
Low level cloud: 1%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 15
Sep		01:00

NNE
NNE

 8 / 13 mph 68 / 68°F 77% 1020 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 35%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 9 / 12 mph 67 / 67°F 80% 1020 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 7 / 12 mph 68 / 67°F 80% 1021 mb
Low level cloud: 33%
Mid level cloud: 11%
High level cloud: 3%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 5 / 6 mph 73 / 76°F 71% 1022 mb
Low level cloud: 16%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 4 / 5 mph 76 / 78°F 68% 1021 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 6 / 7 mph 77 / 78°F 66% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

 5 / 6 mph 77 / 78°F 68% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 2 / 4 mph 72 / 76°F 67% 1021 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 16
Sep		01:00

NNW
NNW

 3 / 4 mph 71 / 71°F 71% 1020 mb
Low level cloud: 6%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 5 / 8 mph 69 / 69°F 77% 1020 mb
Low level cloud: 14%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 6 / 9 mph 71 / 69°F 79% 1020 mb
Low level cloud: 16%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 4 / 5 mph 78 / 78°F 73% 1020 mb
Low level cloud: 6%
Mid level cloud: 31%
High level cloud: 5%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 4 / 4 mph 83 / 84°F 68% 1018 mb
Low level cloud: 1%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ESE
ESE

 9 / 10 mph 83 / 86°F 71% 1016 mb
Low level cloud: 3%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 8 / 9 mph 80 / 82°F 75% 1017 mb
Low level cloud: 5%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 6 / 7 mph 74 / 78°F 75% 1017 mb
Low level cloud: 37%
Mid level cloud: 50%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 17
Sep		01:00

SE
SE

 4 / 5 mph 73 / 77°F 75% 1017 mb
Low level cloud: 14%
Mid level cloud: 44%
High level cloud: 41%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ENE
ENE

 5 / 8 mph 71 / 71°F 77% 1016 mb
Low level cloud: 32%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 6 / 9 mph 73 / 76°F 79% 1017 mb
Low level cloud: 36%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 7 / 9 mph 76 / 77°F 77% 1017 mb
Low level cloud: 32%
Mid level cloud: 32%
High level cloud: 7%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 9 / 11 mph 78 / 79°F 73% 1017 mb
Low level cloud: 1%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ESE
ESE

 7 / 8 mph 78 / 79°F 72% 1016 mb
Low level cloud: 1%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 6 / 7 mph 78 / 79°F 78% 1017 mb
Low level cloud: 1%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

 6 / 7 mph 74 / 77°F 79% 1018 mb
Low level cloud: 6%
Mid level cloud: 27%
High level cloud: 35%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 18
Sep		01:00

NE
NE

 23 / 49 mph 63 / 63°F 79% 1016 mb
Low level cloud: 98%
Mid level cloud: 97%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
07:00

NW
NW

 4 / 8 mph 70 / 71°F 78% 1019 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

SSE
SSE

 2 / 3 mph 70 / 70°F 83% 1014 mb
Low level cloud: 62%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
77%
0.0 In
19:00

ENE
ENE

 21 / 44 mph 68 / 68°F 86% 1017 mb
Low level cloud: 91%
Mid level cloud: 35%
High level cloud: 15%
Most Significant Cloud Type: low
100%
0.0 In
Fri 19
Sep		01:00

ESE
ESE

 23 / 47 mph 62 / 62°F 78% 1012 mb
Low level cloud: 88%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
88%
0.0 In
07:00

NE
NE

 5 / 11 mph 72 / 76°F 78% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
13:00

E
E

 2 / 5 mph 82 / 83°F 54% 1022 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
19:00

SE
SE

 6 / 12 mph 79 / 82°F 69% 1025 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Sat 20
Sep		01:00

NNE
NNE

 4 / 9 mph 78 / 82°F 82% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: medium
3%
0.0 In
07:00

NNW
NNW

 4 / 9 mph 69 / 69°F 77% 1025 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
13:00

E
E

 5 / 10 mph 81 / 85°F 65% 1020 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: medium
12%
0.0 In
19:00

E
E

 2 / 3 mph 83 / 88°F 67% 1023 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
Sun 21
Sep		01:00

WNW
WNW

 3 / 7 mph 78 / 81°F 72% 1016 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 11%
Most Significant Cloud Type: medium
6%
0.0 In
07:00

N
N

 5 / 10 mph 70 / 70°F 73% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

ESE
ESE

 4 / 8 mph 86 / 94°F 64% 1013 mb
Low level cloud: 9%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.0 In
19:00

E
E

 3 / 6 mph 84 / 89°F 66% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 22
Sep		01:00

NNE
NNE

 4 / 8 mph 77 / 82°F 85% 1010 mb
Low level cloud: 1%
Mid level cloud: 7%
High level cloud: 21%
Most Significant Cloud Type: medium
10%
0.0 In
07:00

NNW
NNW

 4 / 9 mph 72 / 76°F 75% 1019 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

SW
SW

 5 / 10 mph 78 / 81°F 64% 1012 mb
Low level cloud: 16%
Mid level cloud: 12%
High level cloud: 100%
Most Significant Cloud Type: low
32%
0.0 In
19:00

SE
SE

 5 / 10 mph 81 / 84°F 65% 1018 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
Tue 23
Sep		01:00

ENE
ENE

 12 / 25 mph 68 / 68°F 75% 1017 mb
Low level cloud: 28%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.0 In
07:00

N
N

 3 / 7 mph 75 / 78°F 74% 1020 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

ENE
ENE

 7 / 14 mph 74 / 77°F 58% 1018 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 4%
Most Significant Cloud Type: medium
11%
0.0 In
19:00

SE
SE

 8 / 17 mph 78 / 82°F 73% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Wed 24
Sep		01:00

NNE
NNE

 6 / 13 mph 71 / 71°F 71% 1019 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: medium
16%
0.0 In
07:00

ENE
ENE

 2 / 5 mph 76 / 80°F 77% 1020 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
13:00

ENE
ENE

 5 / 11 mph 74 / 77°F 62% 1019 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
0.0 In
19:00

ESE
ESE

 9 / 18 mph 78 / 82°F 80% 1018 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 14%
Most Significant Cloud Type: medium
3%
0.0 In
Thu 25
Sep		01:00

NNE
NNE

 4 / 8 mph 72 / 76°F 70% 1018 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 33%
Most Significant Cloud Type: medium
28%
0.0 In
07:00

N
N

 5 / 10 mph 72 / 76°F 89% 1017 mb
Low level cloud: 23%
Mid level cloud: 6%
High level cloud: 85%
Most Significant Cloud Type: low
35%
0.0 In
13:00

E
E

 6 / 13 mph 77 / 79°F 68% 1016 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 32%
Most Significant Cloud Type: medium
27%
0.0 In
19:00

E
E

 6 / 13 mph 76 / 79°F 79% 1016 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 33%
Most Significant Cloud Type: medium
25%
0.0 In
Fri 26
Sep		01:00

SSW
SSW

 13 / 27 mph 65 / 65°F 90% 1012 mb
Low level cloud: 22%
Mid level cloud: 90%
High level cloud: 93%
Most Significant Cloud Type: medium
100%
0.4 In
07:00

NE
NE

 13 / 27 mph 68 / 68°F 80% 1016 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.0 In
13:00

SW
SW

 5 / 11 mph 71 / 71°F 72% 1011 mb
Low level cloud: 45%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
60%
0.6 In
19:00

SE
SE

 5 / 10 mph 79 / 82°F 68% 1016 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 7%
Most Significant Cloud Type: medium
13%
0.0 In

Other Locations Near to Chioggia

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