Fast Forecast

Search Best Deals

Search by Category

Search by Sport

Weather Charts

Services

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website

Local Weather

Obertauern 14 Day Long Range Forecast

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

Austria

Add to favourites Print Charts

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

The next 14 day outlook for Obertauern shows the average daytime maximum temperature will be around 8°C, with a high for the two weeks of 22°C expected on the afternoon of Sunday 8th. The average minimum temperature will be 3°C, dipping to its lowest on the morning of Sunday 15th at -2°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain, sleet or snow. The indicators are that Friday 13th will have the most precipitation with an accumulation of around 46.0mm. On the whole winds are likely to be light.

Day	Local Time	Dir	Speed/ Gust	Temp/ Feels Like	Humidity	Pressure	Cloud Amount	Precip Amount
Sat 07 Sep	16:00	SSE	12 / 17 km/h	18 / 17°C	59%	1014 mb	Low level cloud: 0% Mid level cloud: 30% High level cloud: 0% Most Significant Cloud Type: medium 29%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	19:00	SSE	11 / 20 km/h	13 / 12°C	89%	1017 mb	Low level cloud: 6% Mid level cloud: 16% High level cloud: 0% Most Significant Cloud Type: low 11%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	22:00	SSE	12 / 23 km/h	11 / 9°C	93%	1017 mb	Low level cloud: 29% Mid level cloud: 9% High level cloud: 0% Most Significant Cloud Type: low 31%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
Sun 08 Sep	01:00	S	11 / 22 km/h	11 / 9°C	92%	1016 mb	Low level cloud: 17% Mid level cloud: 7% High level cloud: 0% Most Significant Cloud Type: low 19%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	04:00	S	9 / 19 km/h	10 / 9°C	87%	1016 mb	Low level cloud: 1% Mid level cloud: 4% High level cloud: 0% Most Significant Cloud Type: medium 5%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	07:00	SSW	4 / 8 km/h	14 / 14°C	72%	1015 mb	Low level cloud: 0% Mid level cloud: 3% High level cloud: 0% Most Significant Cloud Type: medium 3%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	10:00	ESE	3 / 3 km/h	19 / 19°C	49%	1013 mb	Low level cloud: 0% Mid level cloud: 5% High level cloud: 0% Most Significant Cloud Type: medium 4%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	13:00	SE	7 / 8 km/h	22 / 20°C	43%	1011 mb	Low level cloud: 0% Mid level cloud: 18% High level cloud: 42% Most Significant Cloud Type: medium 19%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	16:00	SSE	12 / 16 km/h	19 / 18°C	55%	1010 mb	Low level cloud: 0% Mid level cloud: 9% High level cloud: 100% Most Significant Cloud Type: medium 13%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	19:00	SSE	10 / 17 km/h	14 / 13°C	90%	1011 mb	Low level cloud: 18% Mid level cloud: 44% High level cloud: 100% Most Significant Cloud Type: low 44%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	22:00	SSE	11 / 17 km/h	12 / 11°C	95%	1009 mb	Low level cloud: 51% Mid level cloud: 44% High level cloud: 10% Most Significant Cloud Type: low 67%	Expect 0.1 mm of precipitation over the past 3 hours. 0.1 mm
Mon 09 Sep	01:00	SSE	10 / 16 km/h	12 / 10°C	96%	1007 mb	Low level cloud: 61% Mid level cloud: 46% High level cloud: 75% Most Significant Cloud Type: low 86%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
	04:00	SE	4 / 6 km/h	11 / 12°C	98%	1005 mb	Low level cloud: 82% Mid level cloud: 92% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 1.4 mm of precipitation over the past 3 hours. 1.4 mm
	07:00	NW	9 / 14 km/h	11 / 10°C	99%	1005 mb	Low level cloud: 94% Mid level cloud: 87% High level cloud: 99% Most Significant Cloud Type: low 100%	Expect 16.0 mm of precipitation over the past 3 hours. 16.0 mm
	10:00	NW	11 / 17 km/h	8 / 6°C	99%	1008 mb	Low level cloud: 86% Mid level cloud: 71% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 10.4 mm of precipitation over the past 3 hours. 10.4 mm
	13:00	NW	10 / 15 km/h	7 / 5°C	97%	1009 mb	Low level cloud: 71% Mid level cloud: 60% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 8.8 mm of precipitation over the past 3 hours. 8.8 mm
	16:00	NW	7 / 10 km/h	7 / 6°C	96%	1010 mb	Low level cloud: 57% Mid level cloud: 48% High level cloud: 14% Most Significant Cloud Type: low 76%	Expect 0.8 mm of precipitation over the past 3 hours. 0.8 mm
	19:00	NW	7 / 11 km/h	7 / 6°C	97%	1011 mb	Low level cloud: 64% Mid level cloud: 56% High level cloud: 12% Most Significant Cloud Type: low 85%	Expect 0.3 mm of precipitation over the past 3 hours. 0.3 mm
	22:00	NW	6 / 10 km/h	7 / 6°C	96%	1011 mb	Low level cloud: 51% Mid level cloud: 45% High level cloud: 0% Most Significant Cloud Type: low 66%	Expect 0.1 mm of precipitation over the past 3 hours. 0.1 mm
Tue 10 Sep	01:00	WNW	5 / 8 km/h	7 / 6°C	96%	1012 mb	Low level cloud: 51% Mid level cloud: 27% High level cloud: 0% Most Significant Cloud Type: low 59%	Expect 0.3 mm of precipitation over the past 3 hours. 0.3 mm
	04:00	WNW	7 / 13 km/h	6 / 5°C	96%	1012 mb	Low level cloud: 37% Mid level cloud: 43% High level cloud: 0% Most Significant Cloud Type: low 52%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
	07:00	NW	9 / 14 km/h	6 / 4°C	96%	1013 mb	Low level cloud: 59% Mid level cloud: 45% High level cloud: 20% Most Significant Cloud Type: low 76%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
	10:00	NW	10 / 14 km/h	7 / 5°C	89%	1014 mb	Low level cloud: 37% Mid level cloud: 60% High level cloud: 7% Most Significant Cloud Type: low 58%	Expect 0.7 mm of precipitation over the past 3 hours. 0.7 mm
	13:00	NW	10 / 13 km/h	7 / 5°C	89%	1015 mb	Low level cloud: 41% Mid level cloud: 46% High level cloud: 9% Most Significant Cloud Type: low 58%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
	16:00	NNW	8 / 10 km/h	8 / 7°C	81%	1015 mb	Low level cloud: 9% Mid level cloud: 43% High level cloud: 50% Most Significant Cloud Type: medium 71%	Expect 0.1 mm of precipitation over the past 3 hours. 0.1 mm
	19:00	NW	4 / 7 km/h	6 / 5°C	98%	1017 mb	Low level cloud: 50% Mid level cloud: 22% High level cloud: 5% Most Significant Cloud Type: low 100%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	22:00	W	3 / 6 km/h	5 / 5°C	96%	1017 mb	Low level cloud: 33% Mid level cloud: 27% High level cloud: 3% Most Significant Cloud Type: low 42%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
Wed 11 Sep	01:00	WSW	3 / 5 km/h	5 / 5°C	96%	1016 mb	Low level cloud: 32% Mid level cloud: 28% High level cloud: 9% Most Significant Cloud Type: low 42%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	04:00	SSW	3 / 5 km/h	5 / 5°C	96%	1015 mb	Low level cloud: 23% Mid level cloud: 21% High level cloud: 4% Most Significant Cloud Type: low 31%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	07:00	S	4 / 6 km/h	7 / 6°C	84%	1014 mb	Low level cloud: 0% Mid level cloud: 11% High level cloud: 0% Most Significant Cloud Type: medium 12%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	10:00	SSE	2 / 2 km/h	13 / 13°C	55%	1012 mb	Low level cloud: 0% Mid level cloud: 16% High level cloud: 2% Most Significant Cloud Type: medium 16%	Expect 0.0 mm of precipitation over the past 3 hours. 0.0 mm
	13:00	N	4 / 4 km/h	15 / 15°C	52%	1011 mb	Low level cloud: 0% Mid level cloud: 45% High level cloud: 15% Most Significant Cloud Type: medium 46%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
	16:00	SSE	1 / 1 km/h	14 / 13°C	71%	1011 mb	Low level cloud: 0% Mid level cloud: 65% High level cloud: 6% Most Significant Cloud Type: medium 65%	Expect 1.2 mm of precipitation over the past 3 hours. 1.2 mm
	19:00	ENE	2 / 3 km/h	10 / 9°C	91%	1013 mb	Low level cloud: 2% Mid level cloud: 70% High level cloud: 4% Most Significant Cloud Type: medium 75%	Expect 0.9 mm of precipitation over the past 3 hours. 0.9 mm
	22:00	SE	4 / 7 km/h	8 / 8°C	95%	1014 mb	Low level cloud: 30% Mid level cloud: 88% High level cloud: 13% Most Significant Cloud Type: medium 100%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
Thu 12 Sep	01:00	SSE	5 / 9 km/h	8 / 7°C	97%	1013 mb	Low level cloud: 65% Mid level cloud: 58% High level cloud: 15% Most Significant Cloud Type: low 87%	Expect 0.2 mm of precipitation over the past 3 hours. 0.2 mm
	04:00	SSE	9 / 14 km/h	7 / 6°C	98%	1010 mb	Low level cloud: 75% Mid level cloud: 46% High level cloud: 33% Most Significant Cloud Type: low 100%	Expect 0.1 mm of precipitation over the past 3 hours. 0.1 mm
	07:00	SSE	10 / 15 km/h	7 / 6°C	97%	1009 mb	Low level cloud: 62% Mid level cloud: 50% High level cloud: 100% Most Significant Cloud Type: low 91%	Expect 0.1 mm of precipitation over the past 3 hours. 0.1 mm
	10:00	SSE	12 / 17 km/h	9 / 7°C	88%	1008 mb	Low level cloud: 26% Mid level cloud: 45% High level cloud: 97% Most Significant Cloud Type: low 53%	Expect 0.3 mm of precipitation over the past 3 hours. 0.3 mm
	13:00	SSE	8 / 11 km/h	9 / 8°C	88%	1008 mb	Low level cloud: 35% Mid level cloud: 43% High level cloud: 30% Most Significant Cloud Type: low 53%	Expect 0.4 mm of precipitation over the past 3 hours. 0.4 mm
	16:00	NW	8 / 12 km/h	5 / 3°C	96%	1010 mb	Low level cloud: 77% Mid level cloud: 58% High level cloud: 32% Most Significant Cloud Type: low 100%	Expect 1.1 mm of precipitation over the past 3 hours. 1.1 mm
	19:00	NW	7 / 10 km/h	0 / -3°C	100%	1014 mb	Low level cloud: 98% Mid level cloud: 68% High level cloud: 90% Most Significant Cloud Type: low 100%	Expect 3.1 mm of precipitation over the past 3 hours. 3.1 mm
	22:00	NW	11 / 18 km/h	-1 / -5°C	100%	1015 mb	Low level cloud: 93% Mid level cloud: 65% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 12.3 mm of precipitation over the past 3 hours. 12.3 mm
Fri 13 Sep	01:00	NW	11 / 19 km/h	-2 / -6°C	99%	1016 mb	Low level cloud: 90% Mid level cloud: 72% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 13.1 mm of precipitation over the past 3 hours. 13.1 mm
	04:00	NW	10 / 17 km/h	-2 / -6°C	99%	1015 mb	Low level cloud: 89% Mid level cloud: 75% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 8.0 mm of precipitation over the past 3 hours. 8.0 mm
	07:00	NNW	9 / 15 km/h	-2 / -6°C	100%	1016 mb	Low level cloud: 93% Mid level cloud: 94% High level cloud: 98% Most Significant Cloud Type: low 100%	Expect 6.0 mm of precipitation over the past 3 hours. 6.0 mm
	10:00	NW	13 / 19 km/h	-1 / -6°C	100%	1017 mb	Low level cloud: 92% Mid level cloud: 100% High level cloud: 68% Most Significant Cloud Type: low 100%	Expect 6.3 mm of precipitation over the past 3 hours. 6.3 mm
	13:00	NW	14 / 20 km/h	-1 / -5°C	100%	1018 mb	Low level cloud: 97% Mid level cloud: 100% High level cloud: 32% Most Significant Cloud Type: low 100%	Expect 3.7 mm of precipitation over the past 3 hours. 3.7 mm
	16:00	NW	13 / 16 km/h	0 / -5°C	100%	1019 mb	Low level cloud: 96% Mid level cloud: 98% High level cloud: 100% Most Significant Cloud Type: low 100%	Expect 2.3 mm of precipitation over the past 3 hours. 2.3 mm
	19:00	NW	13 / 17 km/h	-1 / -5°C	99%	1022 mb	Low level cloud: 88% Mid level cloud: 72% High level cloud: 34% Most Significant Cloud Type: low 100%	Expect 3.6 mm of precipitation over the past 3 hours. 3.6 mm
	22:00	NW	15 / 22 km/h	-2 / -6°C	99%	1023 mb	Low level cloud: 88% Mid level cloud: 66% High level cloud: 22% Most Significant Cloud Type: low 100%	Expect 3.3 mm of precipitation over the past 3 hours. 3.3 mm

Day	Local Time	Dir	Speed/ Gust	Temp/ Feels Like	Humidity	Pressure	Cloud Amount	Precip Amount
Sat 14 Sep	01:00	SSW	3 / 6 km/h	0 / 0°C	95%	1025 mb	Low level cloud: 19% Mid level cloud: 15% High level cloud: 21% Most Significant Cloud Type: low 26%	0.0 mm
	07:00	NW	14 / 28 km/h	0 / -5°C	98%	1027 mb	Low level cloud: 81% Mid level cloud: 71% High level cloud: 0% Most Significant Cloud Type: low 100%	0.0 mm
	13:00	NW	16 / 34 km/h	-1 / -6°C	100%	1018 mb	Low level cloud: 94% Mid level cloud: 61% High level cloud: 100% Most Significant Cloud Type: low 100%	0.0 mm
	19:00	NW	5 / 11 km/h	2 / 1°C	100%	1029 mb	Low level cloud: 95% Mid level cloud: 44% High level cloud: 5% Most Significant Cloud Type: low 100%	0.0 mm
Sun 15 Sep	01:00	W	5 / 10 km/h	6 / 5°C	88%	1025 mb	Low level cloud: 0% Mid level cloud: 11% High level cloud: 3% Most Significant Cloud Type: medium 11%	0.0 mm
	07:00	NW	11 / 23 km/h	-3 / -7°C	100%	1016 mb	Low level cloud: 91% Mid level cloud: 73% High level cloud: 100% Most Significant Cloud Type: low 100%	0.0 mm
	13:00	WNW	5 / 12 km/h	3 / 2°C	99%	1026 mb	Low level cloud: 48% Mid level cloud: 1% High level cloud: 0% Most Significant Cloud Type: low 100%	0.0 mm
	19:00	WNW	6 / 13 km/h	1 / -1°C	100%	1016 mb	Low level cloud: 98% Mid level cloud: 83% High level cloud: 21% Most Significant Cloud Type: low 100%	0.0 mm
Mon 16 Sep	01:00	WSW	4 / 8 km/h	3 / 2°C	94%	1028 mb	Low level cloud: 24% Mid level cloud: 10% High level cloud: 0% Most Significant Cloud Type: low 27%	0.0 mm
	07:00	WNW	6 / 12 km/h	0 / -2°C	100%	1012 mb	Low level cloud: 100% Mid level cloud: 93% High level cloud: 7% Most Significant Cloud Type: low 100%	16.4 mm
	13:00	NW	6 / 13 km/h	7 / 6°C	96%	1024 mb	Low level cloud: 40% Mid level cloud: 45% High level cloud: 9% Most Significant Cloud Type: low 56%	0.1 mm
	19:00	NW	9 / 19 km/h	0 / -3°C	100%	1015 mb	Low level cloud: 97% Mid level cloud: 91% High level cloud: 95% Most Significant Cloud Type: low 100%	17.1 mm
Tue 17 Sep	01:00	WNW	5 / 10 km/h	5 / 5°C	99%	1027 mb	Low level cloud: 75% Mid level cloud: 20% High level cloud: 7% Most Significant Cloud Type: low 82%	0.2 mm
	07:00	WNW	10 / 20 km/h	0 / -3°C	100%	1016 mb	Low level cloud: 99% Mid level cloud: 92% High level cloud: 0% Most Significant Cloud Type: low 100%	15.6 mm
	13:00	NNW	8 / 17 km/h	11 / 10°C	76%	1025 mb	Low level cloud: 0% Mid level cloud: 24% High level cloud: 20% Most Significant Cloud Type: medium 25%	0.0 mm
	19:00	WNW	8 / 17 km/h	2 / -1°C	100%	1019 mb	Low level cloud: 100% Mid level cloud: 75% High level cloud: 0% Most Significant Cloud Type: low 100%	11.2 mm
Wed 18 Sep	01:00	SSE	6 / 13 km/h	7 / 6°C	93%	1029 mb	Low level cloud: 8% Mid level cloud: 12% High level cloud: 5% Most Significant Cloud Type: low 13%	0.1 mm
	07:00	W	6 / 14 km/h	2 / 0°C	100%	1020 mb	Low level cloud: 100% Mid level cloud: 68% High level cloud: 0% Most Significant Cloud Type: low 100%	7.0 mm
	13:00	SE	8 / 16 km/h	14 / 14°C	49%	1027 mb	Low level cloud: 0% Mid level cloud: 21% High level cloud: 0% Most Significant Cloud Type: medium 21%	0.0 mm
	19:00	WNW	7 / 15 km/h	3 / 1°C	100%	1022 mb	Low level cloud: 100% Mid level cloud: 79% High level cloud: 56% Most Significant Cloud Type: low 100%	5.5 mm
Thu 19 Sep	01:00	SSE	10 / 21 km/h	7 / 5°C	84%	1031 mb	Low level cloud: 0% Mid level cloud: 6% High level cloud: 0% Most Significant Cloud Type: medium 5%	0.0 mm
	07:00	WNW	7 / 14 km/h	0 / -2°C	100%	1027 mb	Low level cloud: 94% Mid level cloud: 16% High level cloud: 2% Most Significant Cloud Type: low 99%	0.1 mm
	13:00	SE	6 / 13 km/h	16 / 16°C	36%	1027 mb	Low level cloud: 0% Mid level cloud: 0% High level cloud: 0% Most Significant Cloud Type: high 0%	0.0 mm
	19:00	WNW	7 / 15 km/h	2 / 0°C	100%	1028 mb	Low level cloud: 99% Mid level cloud: 75% High level cloud: 0% Most Significant Cloud Type: low 100%	0.7 mm
Fri 20 Sep	01:00	S	9 / 18 km/h	8 / 6°C	78%	1029 mb	Low level cloud: 0% Mid level cloud: 3% High level cloud: 14% Most Significant Cloud Type: medium 3%	0.0 mm
	07:00	WNW	4 / 8 km/h	4 / 3°C	100%	1028 mb	Low level cloud: 100% Mid level cloud: 83% High level cloud: 0% Most Significant Cloud Type: low 100%	2.9 mm
	13:00	NNW	10 / 21 km/h	15 / 14°C	53%	1026 mb	Low level cloud: 0% Mid level cloud: 7% High level cloud: 73% Most Significant Cloud Type: medium 9%	0.0 mm
	19:00	WNW	4 / 9 km/h	6 / 6°C	100%	1030 mb	Low level cloud: 97% Mid level cloud: 46% High level cloud: 1% Most Significant Cloud Type: low 100%	0.4 mm
Sat 21 Sep	01:00	NW	5 / 11 km/h	9 / 8°C	98%	1029 mb	Low level cloud: 81% Mid level cloud: 44% High level cloud: 5% Most Significant Cloud Type: low 100%	0.0 mm
	07:00	WSW	4 / 9 km/h	4 / 4°C	100%	1030 mb	Low level cloud: 98% Mid level cloud: 48% High level cloud: 17% Most Significant Cloud Type: low 100%	0.0 mm
	13:00	NNW	10 / 21 km/h	13 / 12°C	68%	1027 mb	Low level cloud: 0% Mid level cloud: 37% High level cloud: 0% Most Significant Cloud Type: medium 37%	1.4 mm
	19:00	W	4 / 8 km/h	8 / 8°C	100%	1029 mb	Low level cloud: 95% Mid level cloud: 46% High level cloud: 100% Most Significant Cloud Type: low 100%	0.6 mm
Sun 22 Sep	01:00	NNW	3 / 7 km/h	9 / 10°C	88%	1029 mb	Low level cloud: 16% Mid level cloud: 43% High level cloud: 3% Most Significant Cloud Type: low 31%	1.4 mm
	07:00	W	3 / 6 km/h	5 / 5°C	100%	1028 mb	Low level cloud: 96% Mid level cloud: 46% High level cloud: 33% Most Significant Cloud Type: low 100%	0.0 mm
	13:00	N	9 / 19 km/h	13 / 13°C	48%	1027 mb	Low level cloud: 0% Mid level cloud: 4% High level cloud: 100% Most Significant Cloud Type: medium 8%	0.0 mm
	19:00	S	3 / 7 km/h	5 / 5°C	100%	1030 mb	Low level cloud: 89% Mid level cloud: 24% High level cloud: 38% Most Significant Cloud Type: low 100%	0.1 mm

Other Locations Near to Obertauern

Cities and Towns: Radstadt, Austria
Ski Resorts: Altenmarkt, Austria

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 ï¿½ 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