Barometric pressure in Rome
Over the past day, pressure rose slowly. Up 2 hPa since this time yesterday. It is levelling off, then starts falling this evening.
Sea level reading, as of 17:00 local time.
The past week and the days ahead
The shaded part shows the days already gone. The thicker line is the forecast.
The week ahead
Each day at a glance: how far pressure moves, and the low and high it reaches.
Barely moves all day.
33° / 21°low 1015 · high 1017 hPa
Still barely moving.
34° / 21°low 1015 · high 1016 hPa
Dips in the afternoon, and comes back by the end of the day.
32° / 23°4.2 mmlow 1012 · high 1016 hPa
Edges up slowly through the day.
34° / 22°low 1015 · high 1017 hPa
Barely moves all day.
37° / 22°low 1016 · high 1018 hPa
Eases down slowly through the day.
39° / 23°low 1014 · high 1017 hPa
Barely moves all day.
33° / 24°4.5 mmlow 1015 · high 1016 hPa
Hour by hour
| Hour | Weather and temperature | Rain (mm) | Pressure (hPa) |
|---|---|---|---|
| 00:00 |  24° | 1016 | |
| 01:00 | 23° | 1016 | |
| 02:00 | 22° | 1016 | |
| 03:00 | 21° | 1016 | |
| 04:00 | 21° | 1016 | |
| 05:00 | 21° | 1016 | |
| 06:00 | 21° | 1016 | |
| 07:00 | 21° | 1016 | |
| 08:00 | 22° | 1017 | |
| 09:00 | 24° | 1017 | |
| 10:00 | 26° | 1017 | |
| 11:00 | 29° | 1017 | |
| 12:00 | 30° | 1017 | |
| 13:00 | 32° | 1017 | |
| 14:00 | 33° | 1016 | |
| 15:00 | 33° | 1016 | |
| 16:00 | 33° | 1016 | |
| 17:00 | 32° | 1016 | |
| 18:00 | 31° | 1015 | |
| 19:00 | 29° | 1015 | |
| 20:00 | 28° | 1015 | |
| 21:00 | 27° | 1015 | |
| 22:00 | 26° | 1016 | |
| 23:00 | 25° | 1016 |
A quiet week. Nothing moves more than 3 hPa in a day.
The highest reading, about 1016 hPa, comes this evening; it falls from there.
Rome sits 55 m above sea level, so a barometer in the city reads about 6 hPa lower than the sea-level figure. A home station set to the local reading should show about 1009 hPa as of 17:00.
The hours already past are the model's record of each hour as it passed, anchored to real observations, though not a reading from an instrument in Rome.
About Rome
Rome's pressure follows the Mediterranean pattern: winter does the moving, summer does the resting. Around 21 sharp daily changes arrive annually, almost all between November and March; a typical summer contributes none at all. The average level runs from a February high near 1021 hPa down to about 1013 in August. Dips below 1000 hPa are limited to a handful of days a year. For most of the year, then, the pressure here follows the seasons, slowly and without surprises.
Sources: WikipediaERA5 reanalysisElevation: Copernicus DEM via Open-Meteo
Cities nearby
Open one to see its pressure, or search for your own city at the top of the page.
Wondering if this weather is normal? See what the weather in Rome has done since 1940, on our sister site 
weatherjourney.com.
Common questions
What is a normal barometric pressure?
Near 1013 hPa at sea level; the exact standard figure, 1013.25 hPa, is the same as 760 mmHg, 29.92 inHg or 101.3 kPa. Anything between roughly 1000 and 1025 hPa is ordinary. Which way it is going matters far more than the number itself.
Why does my own barometer show a different number?
Usually altitude, and sometimes the instrument itself. Weather services correct readings to what they would be at sea level, so that cities can be compared. The figure for Rome, which stands 55 m above sea level, is in the note above: about 6 hPa below the sea-level reading. If your barometer is already set to sea level and still reads slightly differently, that is the setting on the instrument rather than the weather.
Is a millibar the same as a hectopascal?
Yes. One millibar and one hectopascal are exactly the same amount of pressure, so 1013 mbar and 1013 hPa mean the same thing. The name changed; the number did not.
Does falling pressure mean rain?
Not by itself. Away from the tropics, falling pressure usually means a low is approaching, and lows carry the fronts that bring cloud and rain, so the two often arrive together. But a shallow fall can pass with nothing more than cloud, and rain falls under steady pressure too. The graph tells you a system is on the way, not how wet it will be. The week ahead, just above, shows the rain forecast beside the pressure.
