barometer.today

Barometric pressure in Basel

1020hPa
Steady

Pressure has barely moved over the past day. From here it falls until Tuesday morning.

Sea level reading, as of 18:00 local time.

The past week and the days ahead

The shaded part shows the days already gone. The thicker line is the forecast.

now25° / 19°28° / 18°33° / 21°27° / 19°21° / 15°22° / 13°23° / 13°27° / 12°25° / 17°27° / 18°31° / 19°24° / 18°22° / 17°Mon 17Tue 18Wed 19Thu 20Fri 21Sat 22Sun 23Mon 24Tue 25Wed 26Thu 27Fri 28Sat 291005101010151020
The forecast runs 7 days ahead.

The week ahead

Each day at a glance: how far pressure moves, and the low and high it reaches.

TodayAug 23 −1 hPa

Barely moves all day.

Overcast23° / 13°

low 1020 · high 1023 hPa

MonAug 24 −9 hPa

Falls quickly, most of it in the afternoon.

Overcast27° / 12°

low 1012 · high 1021 hPa

TueAug 25 +1 hPa

Barely moves all day.

Dense drizzle25° / 17°12.9 mm

low 1012 · high 1013 hPa

WedAug 26 0 hPa

Climbs in the morning, then settles back.

Light drizzle27° / 18°1.5 mm

low 1013 · high 1017 hPa

ThuAug 27 −6 hPa

Falls steadily through the day.

Light rain31° / 19°6.9 mm

low 1007 · high 1013 hPa

FriAug 28 +6 hPa

Rises steadily through the day.

Light rain24° / 18°9.6 mm

low 1007 · high 1014 hPa

SatAug 29 +5 hPa

Rises steadily through the day.

Light drizzle22° / 17°2.1 mm

low 1014 · high 1019 hPa

Hour by hour
Today Aug 23
HourWeather and temperatureRain (mm)Pressure (hPa)
00:00Clear sky16°1022
01:00Mainly clear15°1022
02:00Mainly clear14°1022
03:00Mainly clear14°1022
04:00Clear sky13°1022
05:00Clear sky13°1022
06:00Clear sky13°1022
07:00Mainly clear13°1023
08:00Mainly clear14°1023
09:00Mainly clear15°1023
10:00Clear sky17°1023
11:00Clear sky19°1023
12:00Mainly clear20°1023
13:00Partly cloudy22°1022
14:00Overcast23°1022
15:00Overcast23°1021
16:00Partly cloudy23°1021
17:00Partly cloudy23°1021
18:00Partly cloudy23°1020
19:00Overcast21°1020
20:00Overcast20°1020
21:00Partly cloudy19°1021
22:00Mainly clear18°1021
23:00Clear sky16°1021

Monday has the week's biggest move: down 9 hPa.

What happens next

The low point comes on Tuesday morning, near 1012 hPa; after that it rises.

Your own barometer

Basel sits 284 m above sea level, so a barometer in the city reads about 33 hPa lower than the sea-level figure. A home station set to the local reading should show about 988 hPa as of 18:00.

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 Basel.

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 Basel 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 Basel, which stands 284 m above sea level, is in the note above: about 33 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.