Immigration and all government office will be closed on august 8-17 for the eid al fitr.
Apply by 5th August if every paper is ok then you will got it by eid holiday.I got approval after i day of my application. Best of Luck
You can apply for your wife visa now.
MOI is opened now and hopefully eid holidays start from 8th aug.
ramadan timing for MOI just visit http://www.moi.gov.qa/site/english/news/2013/07/09/29769.html