Live · SPQU · reported 25 min ago
Barometric pressure in Arequipa, Peru today
30.30inHg
1026.0 hPa (mb)
- 3-hour change
- +0.03 inHg · +1.0 hPa
- 24-hour range
- 30.27 – 30.36 inHg
- Station (absolute) pressure
- 22.64 inHg
- Barometer dial reads
- Fair · high
Last 7 days
7-day barometric pressure graph for Arequipa
Hourly sea-level pressure in Arequipa over the last seven days, from weather station SPQU.
| Day · inHg | High | Low | Change |
|---|---|---|---|
| Loading the last 7 days | |||
Altimeter setting from SPQU (METAR), one report per hour. “Change” is the first to the last report of that day; today is so far.
Arequipa at a glance
How elevation shapes the reading in Arequipa
Arequipa is about 7,864 ft (2,397 m) above sea level. That is high enough that the air pressure you actually stand in is well below the figure in the forecast: about 22.34 inHg (757 hPa) on a standard day, against 29.92 inHg at sea level.
The reading above is the altimeter setting from Arequipa/Ballon Intl (SPQU), 8 km (5 mi) from the city center. It is the station’s measured pressure corrected to sea level, which is the number weather reports, apps and TV forecasts use, so you can compare Arequipa with any other city.
Arequipa elevation and what it means · Sea-level vs station pressure
| Elevation | 7,864 ft · 2,397 m |
|---|---|
| Weather station | Arequipa/Ballon Intl (SPQU) |
| Station elevation | 8,291 ft · 2,527 m |
| Standard air pressure at this elevation | 22.34 inHg · 757 hPa |
| Air pressure vs sea level | 75% |
| Water boils at | 197.4 °F · 91.9 °C |
| Time zone | America/Lima |
Reading the barometer
Is the pressure in Arequipa high or low?
Today’s reading is high. Weather pressure is quoted at sea level, so the same scale works for Arequipa and everywhere else.
- Very low Stormy < 29.50
- Low Clouds, rain 29.50–29.80
- Normal Changeable 29.80–30.20
- High Fair 30.20–30.50
- Very high Dry, clear > 30.50
Frequently asked questions
What is the barometric pressure in Arequipa today?
The live reading at the top of this page is the latest sea-level pressure reported by Arequipa/Ballon Intl (SPQU), 8 km (5 mi) from the city center. It updates about every 10 minutes; the graph shows the last 24 hours.
What is normal barometric pressure in Arequipa?
Weather reports for Arequipa use sea-level pressure, so “normal” is the same as anywhere: about 29.92 inHg (1013 hPa), with most days between 29.60 and 30.30 inHg (1002–1026 hPa). Readings above 30.20 inHg are high pressure; below 29.80 inHg is low pressure.
Why does a barometer in Arequipa read lower than the forecast?
Arequipa sits at about 7,864 ft (2,397 m). At that height the air above weighs less, so an uncorrected sensor reads around 22.34 inHg (757 hPa) on a standard day. Forecasts correct that to sea level. Set a home barometer to the sea-level value on this page, or use the station pressure line for an uncorrected comparison.
Where can I see a 7-day barometric pressure graph for Arequipa?
The graph on this page shows the last 7 days of hourly sea-level pressure from SPQU, with each day's high and low in the table below it. Its sharpest fall usually marks a front or storm passing through.
Is the pressure in Arequipa rising or falling?
See the trend badge under the reading: it compares the latest report with the one three hours earlier. Falling pressure usually means clouds, wind or rain on the way; rising pressure means clearing and more settled weather.