. Finsky says (if I understand him) that he pours straight cane sugar in his hives he did indicate he usually does the much earlier (Aug).
It is given brom big feeding box. http://www.hunaja.fi/tuotetieto/syottolaatikot.htm
I can see from map yuo live at the level of northern Africa. Have you snow at all ? You may give exta sugarsolution when ever you want. From weather outcast I can see that just now you have same weather there as we have in the middle of summer. I suppose you have flowers there and bees gather pollen?
It is better to give in one part that it does not develope brood. Give it as 60% -66% sugar solution. If you have one capped medium box it is enough in your climate. It is 30 lbs honey.
Ask someone local if one box full of food is enough in your climate.
In the hive it must be at least 10 lbs honey for rainy week. It is 2 capped langstroth frame. Somethimes in Finland we must feed in June if hive is empty. At spring when they rise brood bees consume half of winter food during 2 months.