Belgian Royal Meteorological Service site at Uccle, Brussels, has recorded just 1 hour 57 minutes sunshine so far in December (up to and including 13th).
The first 7 days were completely sunless, there was 1 hr 33 min sunshine on 8th, and from 9th to 13th the respective daily totals have been: 6 min, 4 min, 0 min, 14 min, 0 min.
http://www.meteo.be/meteo/view/nl/12...ige+maand.html (last column: cumulative total).
Colin Youngs
Brussels