Monday 21 September, 15:56:53

Uccle (Brussels)

Brussels Capital Region - Royal Meteorological Institute

Monday 21 September, 15:50
Most recentHistorical dataMonthly dataYearly data
Daily data
21 September 2026
Previous 24h
ParameterActualMin.Max.Avg.Tot.Min.Max.Avg.Tot.
Temperature +150cm (screen)°C19.89.320.013.29.320.013.9
 
Relative humidity%52.652.692.278.952.692.275.8
Dewpoint temperature°C9.80.011.68.70.011.98.9
 
Pressure at sea levelhPa1,031.10.01,032.4953.90.01,032.4969.0
Pressure tendency (3h)hPa-1.2
 
Solar radiation avg.W/m²31404081,93104082,288
 
Humidex19.8
 
Wetbulb temperature°C13.9

* Parameters in bold are measured by different sensors, other parameters are calculated valued from different parameters and/or times.

* Actual = during the 10 minutes preceding observation time

* Minimum = lowest value since midnight

* Maximum = highest value since midnight

* Average = average value since midnight

* Total = total of the numbers since midnight

* Cloudbase = calculated height for cloud formation by convection; below this height clouds are dissolving

* Precipitation intensity (rain gauge) = average precipitation intensity during the past 10 minutes

* Precipitation intensity radar = average precipitation intensity during the last minute preceding observation time

* Pressure at sea level = station pressure reduced to sea level taking into account height and temperature

* Pressure tendency 3h = change in atmospheric pressure during the last 3 hours, + is rising, - is falling

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